PART IV.
RANGE, ELEVATION, ETC., OF BRASS ORDNANCE.
+----------------------------------++----------------------------------+ | SOLID SHOT. || COMMON CASE SHOT. | +--------+-----------+-------------++--------+-----------+-------------+ | |Med. 12 Pr.|Light 12 Pr. || |Med. 12 Pr.|Light 12 Pr. | | Eleva- | 9 Pr. | Ditto 6 Pr. || Eleva- | 9 Pr. | Ditto 6 Pr. | | tion. | Long 6 Pr.| Heavy 3 Pr. || tion. | Long 6 Pr.| Heavy 3 Pr. | +--------+-----------+-------------++--------+-----------+-------------+ |degrees.| yards. | yards. ||degrees.| yards. | yards. | | P. B. | 300 | 200 || P. B. | 150 | 100 | | ¼ | 400 | 300 || ¼ | 175 | 125 | | ½ | 500 | 400 || ½ | 200 | 150 | | ¾ | 600 | 500 || ¾ | 225 | 175 | | 1 | 700 | 600 || 1 | 250 | 200 | | 1¼ | 775 | 650 || 1¼ | 275 | 225 | | 1½ | 850 | 700 || 1½ | 300 | 250 | | 1¾ | 925 | 750 || 1¾ | 325 | 275 | | 2 | 1000 | 800 || 2 | 350 | 300 | | 2¼ | 1050 | 850 || | | | | 2½ | 1100 | 900 || | | | | 2¾ | 1150 | 950 || | | | | 3 | 1200 | 1000 || | | | | 3¼ | 1250 | 1050 || | | | | 3½ | 1300 | 1100 || | | | | 3¾ | 1350 | 1150 || | | | | 4 | 1400 | 1200 || | | | +--------+-----------+-------------++--------+-----------+-------------+
+-----------------------------------------------------+ | 24 Pr. Howitzer. | | Charge 2½ lb. | | | +-------------------------------+---------------------+ | Com. Shells. | C. Case. | +------------+---------+--------+------------+--------+ | Elevation. | Fuze.* | Range. | Elevation. | Range. | +------------+---------+--------+------------+--------+ | deg. | 10ths | yds. | deg. | yds. | | P. B. | | 250 | P. B. | 150 | | ¼ | | 300 | ¼ | 175 | | ½ | | 350 | ½ | 200 | | ¾ | | 400 | ¾ | 225 | | 1 | 1 | 450 | 1 | 250 | | 1¼ | 1½ | 500 | 1¼ | 275 | | 1½ | 2 | 550 | 1½ | 300 | | 1¾ | 2½ | 600 | 1¾ | 325 | | 2 | 3 | 650 | 2 | 350 | | 2¼ | 3½ | 700 | 2¼ | 375 | | 2½ | 4 | 750 | 2½ | 400 | | 2¾ | 4½ | 800 | | | | 3 | 5 | 850 | | | | 3¼ | 5½ | 900 | | | | 3½ | 6 | 950 | | | | 3¾ | 6½ | 1000 | | | | 4 | 7 | 1025 | | | | | | | | | | | | | | | +------------+---------+--------+------------+--------+ * Fuze—Old pattern.
+-----------------------------------------------------+ | 12 Pr. Howitzer. | | Charge 1½ lb. | | | +-------------------------------+---------------------+ | Com. Shells. | C. Case. | +------------+---------+--------+------------+--------+ | Elevation. | Fuze.* | Range. | Elevation. | Range. | +------------+---------+--------+------------+--------+ | deg. | 10ths | yds. | deg. | yds. | | 1 | 1 | 400 | P. B. | 100 | | 1¼ | 1½ | 450 | ¼ | 125 | | 1½ | 2 | 500 | ½ | 150 | | 1¾ | 2½ | 550 | ¾ | 175 | | 2 | 3 | 600 | 1 | 200 | | 2¼ | 3½ | 650 | 1¼ | 225 | | 2½ | 4 | 700 | 1½ | 250 | | 2¾ | 4½ | 750 | 1¾ | 275 | | 3 | 5 | 800 | 2 | 300 | | 3¼ | 5½ | 850 | | | | 3½ | 6 | 900 | | | | 3¾ | 6¼ | 950 | | | | 4 | 7 | 1000 | | | | 4¼ | 7½ | 1025 | | | | 4½ | 7¾ | 1050 | | | | 4¾ | 8 | 1075 | | | | 5 | 8¼ | 1100 | | | | 5¼ | 8½ | 1125 | | | | 5½ | 8¾ | 1150 | | | +------------+---------+--------+------------+--------+ * Fuze—Old pattern.
+--------------------------------+ | 5½ in. Howitzer. | | Heavy | Light | | 2 lb. Charge 1 lb. | +--------------------------------+ | Com. Shells. | +------------+---------+---------+ | Elevation. | Range. | Range. | +------------+---------+---------+ | deg. | yds. | yds. | | P. B. | 250 | 150 | | 1 | 400 | 300 | | 2 | 550 | 450 | | 3 | 700 | 600 | | 4 | 850 | 750 | | 5 | 975 | 850 | | 6 | 1100 | 950 | | 7 | 1225 | 1050 | | 8 | 1350 | 1150 | | 9 | 1450 | 1200 | | 10 | 1550 | 1250 | | 11 | 1650 | 1300 | | 12 | 1750 | 1350 | | | | | | | | | | | | | | | | | | | | | | | | | +------------+---------+---------+
_Ranges, Elevation, &c., of 8-inch Howitzer._
+--------------------------++-------------++--------------------------+ | || Shrapnell || | | Common Shells. || Shells. || Ricochet firing. | +-----+------+------+------++------+------++-----+------+------+------+ | Cha-| Fuze.|Eleva-|Range.|| Fuze.|Eleva-|| Cha-|Eleva-|Range.| Fuze.| | rge.| | tion.| || | tion.|| rge.| tion.| | | +-----+------+------+------++------+---------+---+------+------+------+ | lb. |inches| deg. |yards.||inches| deg. || lb. | deg. |yards.|inches| +-----+------+------+------++------+------++-----+------+------+------+ | 4 | ·3 | 2 | 450 || .. | .. || .. | .. | .. | .. | | | ·4 | 2½ | 600 || ·3 | 2⅝ || 1 | 9·5 | 400 | ·85 | | | ·52 | 3 | 750 || ·5 | 3½ || 1·5 | 6· | 400 | ·8 | | | ·65 | 3¾ | 900 || ·7 | 4½ || 1·5 | 9· | 600 | 1· | | | ·8 | 4½ | 1050 || ·9 | 5⅝ || 2 | 6·25| 600 | ·9 | | | ·95 | 5⅜ | 1200 || 1·1 | 6⅞ || 2·5 | 5·5 | 600 | ·75 | | | 1·1 | 6¼ | 1350 || 1·35 | 8¼ || 2 | 8·5 | 800 | 1·2 | | | 1·3 | 7¼ | 1500 || 1·6 | 9¾ || 2·5 | 6·25| 800 | 1· | | | 1·5 | 8¼ | 1650 |+------+------++-----+------+------+------+ | | 1·75 | 9⅜ | 1800 || | || 1 | 34·5 | 1170 | | | | 2· | 10½ | 1950 || | || 2 | 34·5 | 2010 | | | | 2·3 | 11¾ | 2100 |+------+------++-----+------+------+------+ | | 2·6 | 13 | 2250 || | || 3 | 5 | 900 | | | | 3· | 14⅜ | 2400 || | || 3 | 10 | 1200 | | | | 3·4 | 15¾ | 2550 || | || 3 | 15 | 1930 | | | | 3·9 | 17¼ | 2700 || | || | | | | +-----+------+------+------++------+------++-----+------+------+------+
_32 Pr. Brass Howitzer._
+----+----+-----------+-----------++-----+----+-----------+-----------+ |Ran-|Com-| Common | Shrapnell || Ran-|Com-| Common | Shrapnell | | ge.| mon| Shell. | Shell. || ge.| mon| Shell. | Shell. | | |Case| | || |Case| | | +----+----+-----+-----+-----+-----++-----+----+-----+-----+-----+-----+ |Yar-|Ele-| Ele-|Fuze.| Ele-|Fuze.|| Yar-|Ele-| Ele-|Fuze.| Ele-|Fuze.| | ds.|vat-| vat-| | vat-| || ds.|vat-| vat-| | vat-| | | |ion.| ion.| | ion.| || |ion.| ion.| | ion.| | +----+----+-----+-----+-----+-----++-----+----+-----+-----+-----+-----+ | 200| P B| | | | || 1150| | 4⅜ | ·8 | 4¼ | | | 300| 1° | | | | || 1200| | 4⅞ | ·9 | 4⅝ | ·8 | | 400| 2° | ¾ | ·2 | P B | || 1250| | 5½ | ·9 | 5° | | | 450+----+ ⅞ | ·2 | ¼ | ·2 || 1300| .. | .. | ·9 | 5¼ | ·9 | | 500| | 1° | ·2 | ½ | || 1350| .. | .. | 1·0 | 5⅝ | | | 550| | 1¼ | ·3 | 1° | || 1400| .. | .. | 1·0 | 6° | 1·0 | | 600| | 1⅜ | ·3 | 1¼ | || 1450| .. | .. | 1·1 | 6¼ | | | 650| | 1½ | ·3 | 1⅝ | ·3 || 1500| — | 7½ | 1·1 | 6⅝ | | | 700| | 1¾ | ·4 | 2° | || 1550| | | 1·2 | 7° | | | 750| | 2° | ·4 | 2¼ | || 1600| | | 1·3 | 7¼ | | | 800| | 2¼ | ·5 | 2½ | ·4 || 1650| | | 1·4 | 7⅝ | | | 850| | 2½ | ·5 | 2¾ | || 1700| | | 1·5 | 8° | | | 900| | 2¾ | ·6 | 3° | ·5 || 1750| | | 1·6 | | | | 950| | 3° | ·6 | 3¼ | || 1800| — | 9½ | 1·7 | | | |1000| | 3¼ | ·7 | 3½ | ·6 || 1850| | | 1·8 | | | |1050| | 3⅝ | ·7 | 3¾ | || 1900| | | 1·9 | | | |1100| | 4° | ·8 | 4° | ·7 || 2000| | | 2·0 | | | +----+----+-----+-----+-----+-----++-----+----+-----+-----+-----+-----+
_Range, Elevation, &c., of Brass Ordnance._
SHRAPNELL SHELLS.
+---------------------------------+---------------------------------+ | 12 Pr. Medium. | 9 Pr. | +---------------------------------+---------------------------------+ | Shell filled 10 lb. 13¼ oz. | Shell filled 8 lb. 1¼ oz. | | Shell empty 5 lb. 10 oz. | Shell empty 4 lb. 9½ oz. | | Number of Balls 63 | Number of Balls 41 | +----------+--------+-------------+----------+--------+-------------+ | Letter & | Eleva- | Range. | Letter & | Eleva- | Range. | | Length | tion. | | Length | tion. | | | of Fuze. | | from | to | of Fuze. | | from | to | +----------+--------+------+------+----------+--------+------+------+ | in. | deg. | yds. | yds. | in. | deg. | yds. | yds. | | 10ths. | | | | 10ths. | | | | | B ·2 | 1⅜ | 660 | 960 | B ·2 | 1⅜ | 640 | 920 | | C ·3 | 1⅞ | 820 | 1110 | C ·3 | 1⅞ | 800 | 1060 | | D ·4 | 2¼ | 960 | 1230 | D ·4 | 2¼ | 930 | 1180 | | E ·5 | 2¾ | 1080 | 1340 | E ·5 | 2¾ | 1050 | 1290 | | ·6 | 3¼ | 1195 | 1445 | ·6 | 3¼ | 1160 | 1390 | | ·7 | 3¾ | 1301 | 1545 | ·7 | 3¾ | 1260 | 1480 | | ·8 | 4⅜ | 1415 | 1645 | ·8 | 4⅜ | 1360 | 1570 | | ·9 | 5⅛ | 1520 | 1740 | ·9 | 5⅛ | 1455 | 1655 | | 1 · | 5¾ | 1620 | 1830 | 1 · | 5¾ | 1550 | 1740 | | 1 ·1 | 6⅜ | 1720 | 1920 | 1 ·1 | 6⅜ | 1640 | 1820 | | 1 ·2 | 7 | 1815 | 2005 | 1 ·2 | 7 | 1725 | 1895 | | 1 ·3 | 7⅝ | 1905 | 2085 | 1 ·3 | 7⅝ | 1805 | 1965 | | 1 ·4 | 8¼ | 1990 | 2160 | 1 ·4 | 8¼ | 1885 | 2035 | | 1 ·5 | 8⅞ | 2070 | 2230 | 1 ·5 | 8¾ | 1960 | 2100 | | 1 ·6 | 9⅜ | 2140 | 2290 | 1 ·6 | 9⅜ | 2030 | 2160 | | 1 ·7 | 10 | 2200 | 2340 | 1 ·7 | 10 | 2095 | 2215 | | | | | | 1 ·8 | 10¾ | 2165 | 2275 | | | | | | | | | | | | | | | | | | | | | | | | | | | | +----------+--------+------+------+----------+--------+------+------+
+---------------------------------+ | Light 6 Pr. | +---------------------------------+ | Shell filled 5 lb. 7¼ oz. | | Shell empty 3 lb. 2 oz. | | Number of Balls 27 | +----------+--------+-------------+ | Letter & | Eleva- | Range. | | Length | tion. | | | of Fuze. | | from | to | +----------+--------+------+------+ | in. | deg. | yds. | yds. | | 10ths. | | | | | | 1 | 380 | 640 | | B ·2 | 1¼ | 570 | 800 | | C ·3 | 1⅝ | 720 | 930 | | D ·4 | 2¼ | 845 | 1045 | | E ·5 | 2⅞ | 955 | 1145 | | ·6 | 3⅜ | 1060 | 1240 | | ·7 | 4 | 1160 | 1330 | | ·8 | 4⅝ | 1255 | 1415 | | ·9 | 5¼ | 1345 | 1500 | | 1 · | 5⅞ | 1430 | 1580 | | 1 ·1 | 6⅝ | 1510 | 1655 | | 1 ·2 | 7¼ | 1585 | 1725 | | 1 ·3 | 7⅝ | 1655 | 1785 | | 1 ·4 | 8¼ | 1720 | 1840 | | 1 ·5 | 8⅞ | 1780 | 1890 | | 1 ·6 | 9⅝ | 1835 | 1940 | | 1 ·7 | 10¼ | 1885 | 1980 | | 1 ·8 | 11 | 1953 | 2020 | | | | | | | | | | | +----------+--------+------+------+
+----------------------------+----------------------------+ | 24 Pr. Howitzer. | 12 Pr. Howitzer. | +----------------------------+----------------------------+ | S. filled 21 lb. 4 oz. | S. filled 10 lb. 13¼ oz. | | S. empty 11 lb. 1 oz. | S. empty 5 lb. 10 oz. | | No. of Balls 129 | No. of Balls 63 | +----------+--------+--------+----------+--------+--------+ | Letter & | Eleva- | Range. | Letter & | Eleva- | Range. | | Length | tion. | | Length | tion. | | | of Fuze. | | | of Fuze. | | | +----------+--------+--------+----------+--------+--------+ | in. | deg. | yds. | in. | deg. | yds. | | 10ths. | | | 10ths. | | | | ·1 | 1 | 450 | ·1 | 1¼ | 450 | | ·1½ | 1¼ | 500 | ·1½ | 1½ | 500 | | B ·2 | 1½ | 550 | B ·2 | 1¾ | 550 | | ·2½ | 1¾ | 600 | ·2½ | 2 | 600 | | C ·3 | 2 | 650 | C ·3 | 2¼ | 650 | | ·3½ | 2¼ | 700 | ·3½ | 2½ | 700 | | D ·4 | 2½ | 750 | D ·4 | 2¾ | 750 | | ·4½ | 2¾ | 800 | ·4½ | 3 | 800 | | E ·5 | 3 | 850 | E ·5 | 3¼ | 850 | | ·5½ | 3¼ | 900 | ·5½ | 3½ | 900 | | ·6 | 3½ | 950 | ·6 | 3¾ | 950 | | ·6½ | 3¾ | 1000 | ·6½ | 4 | 1000 | | ·7 | 4 | 1050 | ·7 | 4¼ | 1025 | | ·7½ | 4¼ | 1100 | ·7½ | 4½ | 1050 | | ·8 | 4½ | 1125 | ·7¾ | 4¾ | 1075 | | ·8½ | 4¾ | 1150 | ·8 | 5 | 1100 | | ·9 | 5 | 1175 | ·8¼ | 5¼ | 1125 | | ·9½ | 5¼ | 1200 | ·8½ | 5½ | 1150 | | | | | ·8¾ | 5¾ | 1175 | | | | | ·9 | 6 | 1200 | +----------+--------+--------+----------+--------+--------+
_Ricochet Practice with Brass Ordnance._
yds. = yards. Chg. = Charge. Ele. = Elevation. +-----+------------------------+ | | Solid Shot. | | +-----------+------------+ | | 12 Pr. | 9 Pr. Gun. | | | Medium | | |Range| Gun. | | | in +----+------+----+-------+ |yds. |Chg.| Ele. |Chg.| Ele. | | +----+------+----+-------+ | | oz.| deg. | oz.| deg. | +-----+----+------+----+-------+ | | | | | | | 400 | | | | | | | | | 8 | 4 | | | 6 | 6½ | 7 | 5 | | | 5 | 7 | 6 | 6¼ | | | | | 5 | 6¾ | | 500 | | | | | | | | | | | | | | | 7 | 6½ | | 600 | | | 6 | 7½ | | | | | 5 | 9½ | +-----+----+------+----+-------+
yds. = yards. Chg. = Charge. Ele. = Elevation. +-----+-----------------------------------------------------------------+ | | Common Shells. | | +------------+-----------+--------------+------------+------------+ | | 24 Pr. | 12 Pr. | 5½ in. | 5½ in. | 4⅖ in. | | | Howitzer | Howitzer |Howitzer heavy| Mortar | Mortar | |Range|Shell, 16lb.|Shell, 8lb.| Shell, 16lb. |Shell, 16lb.| Shell, 8lb.| | in +------+-----+-----+-----+------+-------+----+-------+----+-------+ |yds. | Chg. | Ele.|Chg. | Ele.| Chg. | Ele. |Chg.| Ele. |Chg.| Ele. | | +------+-----+-----+-----+------+-------+----+-------+----+-------+ | |lb.oz.| deg.| oz. | deg.|lb.oz.| deg. | oz.| deg. | oz.| deg. | +-----+------+-----+-----+-----+------+-------+----+-------+----+-------+ | | 6 | 7½ | | | | | | | | | | 400 | 9 | 4¾ | | | 12 | 5 | 8 | 14½ | 5 | 14½ | | | | | | | 8 | 8 | | | | | | | 8 | 9 | | | 12 | 7 | | | | | | | 10 | 7½ | | | | | | | | | | | 11 | 6 | | | 10 | 9 | | | | | | 500 | 12 | 5¼ | | | 8 | 11 | | | | | | | 14 | 5 | | | | | | | | | | | 9 | 7¾ | 6 | 7 | | | | | | | | 600 | 12 | 6½ | 8 | 6 | 1 | 6¾ | | | | | | | 1 | 4¾ | 10 | 5 | 12 | 9 | | | | | +-----+------+-----+-----+-----+------+-------+----+-------+----+-------+ NOTE.—When Shot are fired from the 24 Pounder and 12 Pounder Howitzers, the Elevation must be about half a degree more than when Shells are used.
CHARGES FOR THE ROYAL NAVY.
_For Boats._
lb. oz. { 24 Pounder 2 8 { Howitzer { 12 Pounder { Heavy 2 0 Cartridges { { Light 1 4 filled with { Gun 6 Pr. Light { 1 8 Powder { { 0 4 { Carronade 12 Pounder 1 0
CHARGES FOR THE ROYAL NAVY.
High; Medium; Low: equivalent to Distant; Full; Reduced.
+---------------+-------+-------+---------+--------+--------+ | | Gun. | High. | Medium. | Low. | Proof. | +---------------+-------+-------+---------+--------+--------+ | | cwt. | lb. | lb. | lb. | lb. | | 18-Pounder. | 42 | 6 | 4½ | 3 | 15 | | ” ” | 38 | 6 | 4½ | 3 | 15 | | ” ” | 22 | | 3 | 2 | 7 | | ” ” | 20 | | 3 | 2 | 7 | | ” ” | 15 | | 2 | | 5 | +---------------+-------+-------+---------+--------+--------+ | 24-Pounder. | 50 | 8 | 6 | 4 | 18 | | ” ” | 48 | 8 | 6 | 4 | 18 | | ” ” | 33 | | 6 | 4 | 12 | | ” ” | 20 | | 2½ | | 6 | +---------------+-------+-------+---------+--------+--------+ | 32-Pounder*. | 64 | 10 | 8 | 6 | 21½ | | ” ” | 58 | 10 | 8 | 6 | 21½ | | ” ” | 56 | 10 | 8 | 6 | 21½ | | ” ” | 46 | 8 | 6 | | 21½ | | ” ” | 48 } | | | | | | ” ” | 50 } | 8 | 6 | 5 | 21½ | | ” ” | 50 A | 8 | 6 | 4 | 18 | | ” ” | 45 B | 8 | 7 | 5 | 16 | | ” ” | 42 C | 6 | 4 | 2½ | 14 | | ” ” | 41 | 6 | 4 | 2½ | 12 | | ” ” | 40 | 6 | 4 | 2½ | 12 | | ” ” | 32 | 5 | 3 and 4 | 2½ | 10 | | ” ” | 25 | | 4 | 2½ | 9 | | ” ” | 25 | | 4 | 2½ | 9 | +---------------+-------+-------+---------+--------+--------+ | 42-Pounder. | 84 | 14 | 10 | 5 | 25 | | ” ” | 75 | 14 | 10 | 5 | 25 | | ” ” | 67 | | 10 | 6 | 23 | +---------------+-------+-------+---------+--------+--------+ | 56-Pounder. | 98 | 16 | 10 | 5 | 28 | | ” ” | 87 | 14 | 10 | 5 | 25 | +---------------+-------+-------+---------+--------+--------+ | 68-Pounder. | 112 | 20 | 10 | 5 | 30 | | ” ” | 95 | 16 | 12 | 8 | 28 | | ” ” | 87 | 14 | 10 | 6 | 25 | +---------------+-------+-------+---------+--------+--------+ | 8-Inch Gun. | 65 | 10 | 8 | 5 | 20 | | ” ” | 60 | 10 | 8 | 5 | 20 | | ” ” | 52 | 8 | | 5 | 16 | | ” ” | 50 | | 8 | 5 | 14 | +---------------+-------+-------+---------+--------+--------+ | 10-Inch Gun. | 112 | 16 | | | 25 | | ” ” | 86 | 12 | | 6 | 20 | +---------------+-------+-------+---------+--------+--------+ * Charge of powder, for firing 32-pounder shells, 8 lb.
In changing the charge from Distant to Full, add ¼ degree elevation as far as 1000 yards, and half a degree beyond that range.
_Double Shotting._—Double shotting may be employed with 32-pounder guns of
56 cwt. charge 6 lb. up to 400 yards. 42 ” ” 4 lb. ” 300 ” 25 ” ” 2½ lb. ” 200 ”
With double shot and reduced charge, give double the elevation, and half a degree additional, for the reduced charge.
_Range, Charge, Elevation, &c., of Iron Ordnance._
+-------------+---------+---------+----------+----------+ | Nature. | Weight. | Length. | Diameter | Charge | | | | | of the | of | | | | | bore. | powder. | | | | | | | +-------------+---------+---------+----------+----------+ | | cwt. | ft. in. | in. | lb. oz. | | GUNS. | | | | | | 42 Pr. | 85 | 10 | 9·60 | 14 | | 32 Pr. | 63 | 9 7 | 6·41 | 10 10½ | | | 56 | 9 6 | 6·41 | 10 10½ | | | 48 | 8 | 6·41 | 8 | | | 40 | 7 6 | 6·35 | 6 | | * | 32 | 6 6 | 6· 3 | 5 | | * | 25 | 6 | 6· 3 | 4 | | | 25 | 5 4 | 6· 3 | 4 | | 24 Pr. | 50 | 9 6 | 5·82 | 8 | | | 48 | 9 | 5·82 | 8 | | | 40 | 7 6 | 5·82 | 8 | | | 33 | 6 6 | 5·82 | 6 | | 18 Pr. | 42 | 9 | 5·29 | 6 | | | 38 | 8 | 5·29 | 6 | | 12 Pr. | 34 | 9 | 4·62 | 4 | | | 29 | 7 6 | 4·62 | 4 | | 9 Pr. | 26 | 7 6 | 4· 2 | 3 | | 6 Pr. | 17 | 6 | 3·66 | 2 | | | | | | | | CARRONADES. | | | | | | 68 Pr. | 36 | 6 4 | 8·05 | 5 10½ | | 42 | 22 | 4 6 | 6·84 | 3 8 | | 32 | 17 | 4 | 6·25 | 2 10 | | 24 | 13 | 3 9 | 5·68 | 2 | | 18 | 10 | 3 4 | 6·16 | 1 8 | | 12 | 6 | 2 8 | 4·62 | 1 | +-------------+---------+---------+----------+----------+ * Bored-up guns.
+-------------+-------------------------------------------------+ | Nature. | Range in yards. | | +-------+------+------+------+------+------+------+ | | Point | 1° | 2° | 3° | 4° | 5° | 6° | | | blank.| | | | | | | +-------------+-------+------+------+------+------+------+------+ | | | | | | | | | | GUNS. | | | | | | | | | 42 Pr. | 400 | 940 | 1340 | 1620 | 1840 | 2050 | 2250 | | 32 Pr. | 380 | 760 | 1130 | 1455 | 1730 | 1950 | 2160 | | | 380 | 760 | 1130 | 1455 | 1730 | 1950 | 2160 | | | 330 | 680 | 1015 | 1300 | 1540 | 1740 | 1840 | | | 340 | 675 | 985 | 1260 | 1500 | 1700 | 1800 | | * | 330 | 670 | 945 | 1210 | 1450 | 1640 | 1730 | | * | 225 | 485 | 735 | 995 | 1260 | 1500 | 1630 | | | 225 | 485 | 735 | 995 | 1260 | 1500 | 1630 | | 24 Pr. | 360 | 755 | 1125 | 1417 | 1670 | 1850 | 2000 | | | 360 | 755 | 1125 | 1417 | 1670 | 1850 | 2000 | | | 340 | 730 | 1080 | 1377 | 1620 | 1800 | 1950 | | | 260 | 530 | 805 | 1082 | 1350 | 1560 | 1760 | | 18 Pr. | 360 | 730 | 1080 | 1377 | 1600 | 1780 | 1960 | | | 340 | 710 | 1075 | 1347 | 1560 | 1730 | 1900 | | 12 Pr. | 360 | 720 | 1075 | 1337 | 1540 | 1700 | 1850 | | | 340 | 710 | 1040 | 1307 | 1500 | 1650 | 1800 | | 9 Pr. | 330 | 685 | 1015 | 1278 | 1460 | 1600 | 1730 | | 6 Pr. | 320 | 655 | 985 | 1238 | 1400 | 1520 | 1610 | | | | | | | | | | | CARRONADES. | | | | | | | | | 68 Pr. | 270 | 540 | 812 | 1042 | 1240 | 1420 | 1570 | | 42 | 240 | 515 | 810 | 983 | 1180 | 1350 | 1880 | | 32 | 235 | 485 | 705 | 905 | 1100 | 1260 | 1400 | | 24 | 225 | 435 | 650 | 826 | 1000 | 1150 | 1300 | | 18 | 220 | 430 | 620 | 787 | 950 | 1100 | 1250 | | 12 | 205 | 375 | 580 | 738 | 880 | 1000 | 1100 | +-------------+-------+------+------+------+------+------+------+ * Bored-up guns.
_Carronades._
+----------+---------+---------+---------+------+---------+-----+ | Nature | 68 Pr. | 42 | 32 | 24 | 18 | 12 | +----------+---------+---------+---------+------+---------+-----+ | Charge | lb. oz. | lb. oz. | lb. oz. | lb. | lb. oz. | lb. | | | 5 8 | 3 8 | 2 10 | 2 | 1 8 | 1 | +----------+---------+---------+---------+------+---------+-----+ | | yards. | | | | | | | P. B. | 450 | 400 | 330 | 300 | 270 | 230 | | 1 Degree | 650 | 600 | 560 | 500 | 470 | 400 | | 2 ” ” | 890 | 860 | 830 | 780 | 730 | 580 | | 3 ” ” | 1000 | 980 | 900 | 870 | 800 | 740 | | 4 ” ” | 1100 | 1020 | 970 | 920 | 870 | 810 | | 5 ” ” | 1280 | 1170 | 1080 | 1050 | 1000 | 870 | +----------+---------+---------+---------+------+---------+-----+
_Range, &c., of Iron Ordnance._
SHRAPNELL SHELLS.
+----------------+----------------+------+ |68 Pr.Carronade.| 8 in. Howitzer.| | +----------------+----------------+------+ | lb.oz.| lb.oz.| | | Charge 4 0 | Charge 4 0 | | |S. filled 61 4 |S. filled 61 13 | | |S. empty 32 2 |S. empty 32 2 | | |No. of Balls 337|No. of Balls 337| | +--------+-------+--------+-------+ | | Eleva- | Fuze. | Eleva- | Fuze. |Range.| | tion. | | tion. | | | +--------+-------+--------+-------+------+ | deg. |tenths.| deg. |tenths.|yards.| | 2½ | 4 | 2¾ | 3½ | 650 | | 3½ | 6 | 3 | 6 | 900 | | 5 | 8½ | 6 | 10 | 1100 | +--------+-------+--------+-------+------+
+----------------+----------------+------+ | 24 Pr. Gun. | 18 Pr. Gun. | | +----------------+----------------+------+ | lb.oz.| lb.oz.| | | Charge 5 0 | Charge 4 8 | | |S. filled 21 5 |S. filled 15 11 | | |S. empty 11 0 |S. empty 8 6 | | |No. of Balls 128|No. of Balls 90 | | +--------+-------+--------+-------+ | | Eleva- | Fuze. | Eleva- | Fuze. |Range.| | tion. | | tion. | | | +--------+-------+--------+-------+------+ | deg. |tenths.| deg. |tenths.|yards.| | 1¼ | 2 | 1¼ | 2 | 650 | | 1¾ | 3½ | 2 | 4 | 900 | | 2½ | 5 | 3 | 5¾ | 1100 | +--------+-------+--------+-------+------+
_Range, Elevation, &c., of 12, 10, and 8 inch Guns, 32 Pr. Carronade Gun, and 10, and 8 inch Iron Howitzers._
+---------------------+-----------------------------------------------+ | | Elevation in degrees; Range in yards; | | | Flight in seconds. | | +--------+--------+-------+-------+------+------+ | Nature of Ordnance. | Length.| Weight.|Charge.| Point | 1° | 2° | | | | | | blank.| | | +---------------------+--------+--------+-------+-------+------+------+ | |feet.in.|cwt.qrs.| lb.oz.| | | | | 12 in. Gun | 8 4 | 90 3 | 12 | 240 | 540 | 790 | | (Hollow shot) | | | | | | | | | | | | | | | | { | 7 6 | 57 3 | 7 | 210 | 460 | 720 | | 10 Do. (H. S.) { | 8 4 | 62 1 | 8 | 250 | 570 | 810 | | { | 9 4 | 84 | 12 | 325 | 630 | 930 | | | | | | | | | | 8 Do. (H. S.) | 6 8½ | 50 | 7 | 210 | 320 | 570 | | | | | | | | | | 8 Do. (Solid shot) | 8 6 | 60 | 9 7 | 340 | 640 | 960 | | | | | | | | | | 8 Do. } | 9 | 65 | 10 | 300 | 580 | 940 | | Time of Flight } | | | | ¾” | 2” | 3” | | | | | | | | | | Do. (Hollow shot) } | 9 | 65 | 12 | 370 | 700 | 1050 | | Time of Flight } | | | | 1” | 2¼” | 3” | | | | | | | | | | 32 Pounder | 5 | 25 | 4 | 200 | 470 | 730 | | Carronade Gun | | | | | | | | | | | | | | | | 10 inch iron | 5 | 40 | 7 | | | 600 | | Howitzer | | | | | | | | | | | | | | | | 8 inch Do. | 4 | 21 | 4 | | | 450 | +---------------------+--------+--------+-------+-------+------+------+
+---------------------+------------------------------------------------+ | | Elevation in degrees; Range in yards; | | | Flight in seconds. | | +------+------+------+------+------+------+------+ | Nature of Ordnance. | 3° | 4° | 5° | 6° | 7° | 8° | 9° | | | | | | | | | | +---------------------+------+------+------+------+------+------+------+ | | | | | | | | | | 12 in. Gun | 1020 | 1250 | 1400 | 1550 | | | | | (Hollow shot) | | | | | | | | | | | | | | | | | | { | 935 | 1160 | 1350 | 1500 | | | | | 10 Do. (H. S.) { | 1030 | 1230 | 1400 | | | | | | { | 1200 | 1460 | 1700 | | | | | | | | | | | | | | | 8 Do. (H. S.) | 830 | 1130 | 1300 | | | | | | | | | | | | | | | 8 Do. (Solid shot) | 1190 | 1300 | 1500 | | | | | | | | | | | | | | | 8 Do. } | 1220 | 1480 | 1700 | 1880 | 2120 | 2290 | 2430 | | Time of Flight } | 4¼” | 5½” | 7” | 8” | 8¾” | 9¾” | 10½” | | | | | | | | | | | Do. (Hollow shot) } | 1230 | 1540 | 1700 | 1831 | 1980 | 2090 | 2310 | | Time of Flight } | 4¼” | 6” | 6½” | 7¾” | 8” | 8¾” | 10” | | | | | | | | | | | 32 Pounder | 960 | | | | | | | | Carronade Gun | | | | | | | | | | | | | | | | | | 10 inch iron | | | 1200 | 1320 | | 1500 | | | Howitzer | | | | | | | | | | | | | | | | | | 8 inch Do. | 730 | | | 975 | | 1227 | | +---------------------+------+------+------+------+------+------+------+
+---------------------+-----------------------------------------+ | | Elevation in degrees; Range in yards; | | | Flight in seconds. | | +------+------+------+------+------+------+ | Nature of Ordnance. | 10° | 11° | 12° | 13° | 14° | 15° | | | | | | | | | +---------------------+------+------+------+------+------+------+ | | | | | | | | | 12 in. Gun | | | | | | | | (Hollow shot) | | | | | | | | | | | | | | | | { | | | | | | | | 10 Do. (H. S.) { | | | | | | | | { | | | | | | | | | | | | | | | | 8 Do. (H. S.) | | | | | | | | | | | | | | | | 8 Do. (Solid shot) | | | | | | | | | | | | | | | | 8 Do. } | 2510 | 2710 | 2930 | 2990 | 3140 | 3250 | | Time of Flight } | 11½” | 12¼” | 12½” | 13” | 13½” | 14” | | | | | | | | | | Do. (Hollow shot) } | 2400 | 2510 | 2720 | 2830 | 2870 | 2220 | | Time of Flight } | 10½” | 11½” | 12½” | 13½” | 14” | 15½” | | | | | | | | | | 32 Pounder | | | | | | | | Carronade Gun | | | | | | | | | | | | | | | | 10 inch iron | 1926 | | 2078 | | | | | Howitzer | | | | | | | | | | | | | | | | 8 inch Do. | 1506 | | 1725 | | | | +---------------------+------+------+------+------+------+------+
The above Ranges for the 12 and 10 inch Guns are with hollow shot, weighing respectively 112 lb. and 84 lb. The 8 inch Gun carries either hollow shot, plugged, 48 lb.; or shell, 46 lb.
_Vide also_ NAVAL GUNNERY. Table of Tangent Practice, 8 inch Gun.
_56 Pounder Gun, and 68 Pounder Gun._
_Weight, Ranges, &c._
+-------+-----+-------+-------+-----+-----+------+------+------+------+ | | Gun.| Shot. |Charge.| P B | 1° | 2° | 3° | 4° | 5° | | | | | | | | | | | | | +-----+-------+-------+-----+-----+------+------+------+------+ | | cwt.| lb. | lb. | yds.| yds.| yds. | yds. | yds. | yds. | | 56 Pr.| 98 | S S | 16 | 490 | 930 | 1340 | 1720 | 2000 | 2200 | | | 87 | S S | 14 | 380 | 900 | 1310 | 1660 | 1940 | 2100 | +-------+-----+-------+-------+-----+-----+------+------+------+------+ | 68 Pr.| 112 | S S | 20 | 400 | 980 | 1400 | 1760 | 1980 | 2240 | | | 95 | S S | 15 | 310 | 700 | 1070 | 1430 | 1710 | 1930 | | | 95 | Shell | 16 | 350 | 850 | 1250 | 1560 | 1840 | 2100 | | | 87 | S S | 14 | 300 | 680 | 1050 | 1360 | 1650 | 1900 | | | 87 | Shell | 14 | 310 | 710 | 1080 | 1350 | 1610 | 1850 | +-------+-----+-------+-------+-----+-----+------+------+------+------+
+-------+-----+-------+-------+------+------+------+------+--------+ | | Gun.| Shot. |Charge.| 6° | 8° | 10° | 12° | Above | | | | | | | | | | Plane. | | +-----+-------+-------+------+------+------+------+--------+ | | cwt.| lb. | lb. | yds. | yds. | yds. | yds. |feet.in.| | 56 Pr.| 98 | S S | 16 | 2400 | 2740 | 3040 | 3320 | 5 | | | 87 | S S | 14 | 2310 | 2580 | 2940 | 3270 | 8 | +-------+-----+-------+-------+------+------+------+------+--------+ | 68 Pr.| 112 | S S | 20 | 2480 | 2840 | 3130 | 3400 | 8 | | | 95 | S S | 15 | 2130 | 2520 | 2890 | 3180 | 5 4 | | | 95 | Shell | 16 | 2350 | 2690 | 3000 | 3300 | 5 4 | | | 87 | S S | 14 | 2140 | 2490 | 2820 | 3150 | 8 | | | 87 | Shell | 14 | 2080 | 2450 | 2800 | 3140 | 8 | +-------+-----+-------+-------+------+------+------+------+--------+
_8 Inch Gun._
Length, 9 feet; Weight, 65 cwt.; Height of gun above the plane, 5 feet 7 inches.
+-------+-------+--------+------+-------+------+-------+-------+-------+ |Nature |Charge.| Eleva- |First |Flight.|Second|Extreme|Time of|Number | | of | | tion. |graze.| |graze.|range. |flight.| of | | shot. | | | | | | | |grazes.| +-------+-------+--------+------+-------+------+-------+-------+-------+ | | lb. |Degrees.|Yards.| Sec. |Yards.| Yards.| Sec. | | | Solid | 10 | P. B. | 315 | 1” | 901 | 3207 | 20” | 23 | | | 10 | 1° | 660 | 2” | 1006 | 2803 | 19” | 18 | | | 10 | 1½° | 818 | 3” | 1240 | 2433 | 16” | 13 | | | 9 | P. B. | 343 | 1” | 776 | 2683 | 17” | 12 | | | 9 | 1° | 615 | 2” | 970 | 2483 | 15” | 10 | +-------+-------+--------+------+-------+------+-------+-------+-------+
RICOCHET FIRING.
1. When adopted in the field, the guns should seldom be elevated above 3 degrees, as the objects fired at are generally cavalry and infantry, and the lower the angle the longer will the shot preserve its force, and have effect.
2. In the ricochet of a fortification of any kind, the elevation should seldom exceed 10 degrees to throw the shot over the parapet a little higher than the level of the battery; and, on the whole, the best elevation to enfilade a work is from 6 to 9 degrees, measured above the crest of the parapet with corresponding charges.
3. The charge, and elevation being known for any range, when the gun and parapet are on the same level, the same charge, and elevation may be used so long as the difference of level does not exceed one-twentieth of the horizontal distance between them, the elevation being given by the tangent scale, and the gun laid at the parapet, whether above or below its own level.
_Ricochet Practice with Iron Ordnance._
+-------+-----------------------------------------------------------+ | | Round Shot. | | +--------------+--------------+--------------+--------------+ | Range | 68 Pr. | 24 Pr. Gun, | 18 Pr. Gun, | 12 Pr. Gun, | | | Carronade.* | 9 Feet. | 8 Feet. | 8½ Feet. | | in | | | | | | +-------+------+-------+------+-------+------+-------+------+ | yards.|Charge.|Eleva-|Charge.|Eleva-|Charge.|Eleva-|Charge.|Eleva-| | | | tion.| | tion.| | tion.| | tion.| +-------+-------+------+-------+------+-------+------+-------+------+ | | lb.oz.| deg. | lb.oz.| deg. | lb.oz.| deg. | lb.oz.| deg. | | 400 | | | 12 | 6¼ | 9 | 6½ | 8 | 4½ | | | | | 10 | 7¾ | | | 6 | 6½ | | | | | 8 | 11 | | | | | | | | | | | | | | | | 600 | 1 12 | 7 | 6 | 6 | 1 | 5¼ | 12 | 4¾ | | | 1 8 | 8¾ | 1 8 | 4 | 12 | 7 | 10 | 6 | | | | | 1 | 6½ | | | 8 | 7¾ | | | | | | | | | | | | 800 | | | 2 | 3¾ | 1 8 | 4¼ | 1 | 4½ | | | | | 1 8 | 5½ | 1 | 7 | 12 | 6½ | +-------+-------+------+-------+------+-------+------+-------+------+ * NOTE.—When Shells are fired from the 68 Pounder Carronade, the Elevation must be decreased about half a degree.
+-------+--------------------------------------------+ | | Common Shell. | | +--------------+--------------+--------------+ | Range | 10-inch | 8-inch | 24 Pr. | | | Howitzer | Howitzer | Howitzer | | in | Shell, 92 lb.| Shell, 46 lb.| Shell, 16 lb.| | +-------+------+-------+------+-------+------+ | yards.|Charge.|Eleva-|Charge.|Eleva-|Charge.|Eleva-| | | | tion.| | tion.| | tion.| +-------+-------+------+-------+------+-------+------+ | | lb.oz.| deg. | lb.oz.| deg. | lb.oz.| deg. | | 400 | 2 8 | 6¼ | 1 8 | 6 | 9 | 4¾ | | | 2 | 8½ | 1 | 9½ | 6 | 7½ | | | | | | | | | | | | | | | | | | 600 | 3 | 6½ | 1 8 | 8¼ | 1 | 4¾ | | | 2 8 | 8¼ | 1 4 | 10 | 12 | 5¼ | | | | | | | 9 | 7½ | | | | | | | | | | 800 | 4 | 6¼ | 2 8 | 6¼ | | | | | 3 8 | 7½ | 2 | 6½ | | | +-------+-------+------+-------+------+-------+------+
MORTARS.
_Practical rules._
_To find the Charge for a given Range at 45° elevation._
_13 inch Mortar._—To the range, in yards, add half the range, multiply the sum by ·03 for the charge, in ounces.
_10 inch Mortar._—When the range is under 1350 yards, add to the range 160, and multiply by ·02; and if the range is over 1350 yards, add one-fifth of the range, and multiply by ·02 for the charge, in ounces.
_8 inch Mortar._—To the range, in yards, add 20, and the sum multiplied by ·015 will give the charge, in ounces.
_5½ inch Mortar._—To the range in yards, add 150, and multiply by ·08, for the charge, in ounces.
_4⅖ inch Mortar._—To the range in yards add 300, and multiply by ·06, for the charge, in drams.
_To find the Time of flight_, the range being given. Divide the square root of the range, in feet, by 4·5 for the time of flight, in seconds.
_To find the Range_, the Time of flight being given. Multiply the time of flight, in seconds, by 4·5, and square the product for the range, in feet.
_To find the length of Fuze_,[8] for a given range. Multiply the time of flight, in seconds, by ·22, for the 13, and 10 inch mortars, and by ·24 for 8, 5½, and 4⅖ inch mortars, for the length of fuze, in tenths.
_Mortar Practice at 15°, 25°, and 45° Elevation. 1838._
+--------------------------------+--------------------------------+ | 13 INCH IRON. | 10 INCH IRON. | | Weight 36 cwt.| Weight 16 cwt. 2 qrs.| | *Shell filled 200 lb. | Shell filled 92 lb. | | Burst. powder 6 lb. 12 oz. | Burst. powder 2 lb. 10 oz. | | Blowing powder 2 oz. | Blowing powder 1½ oz. | +-------+---------+------+-------+-------+---------+------+-------+ | Eleva-| Charge. | Fuze.| Range.| Eleva-| Charge. | Fuze.| Range.| | tion.| | | | tion.| | | | +-------+---------+------+-------+-------+---------+------+-------+ | degs. | lb. oz. | in. | yds. | degs. | lb. oz. | in. | yds. | | 45 | 2 1½ | 1·9 | 450 | 45 | 1 ½ | 1·9 | 450 | | | 2 3 | 2· | 500 | | 1 2 | 2· | 500 | | | 2 4¾ | 2·1 | 550 | | 1 3¼ | 2·1 | 550 | | | 2 6 | 2·2 | 600 | | 1 4¾ | 2·2 | 600 | | | 2 7¾ | 2·3 | 650 | | 1 6 | 2·3 | 650 | | | 2 9½ | 2·4 | 700 | | 1 7½ | 2·4 | 700 | | | 2 11¾ | 2·45 | 750 | | 1 9 | 2·45 | 750 | | | 2 14 | 2·5 | 800 | | 1 10 | 2·5 | 800 | | | 3 ½ | 2·55 | 850 | | 1 11 | 2·55 | 850 | | | 3 3 | 2·6 | 900 | | 1 12 | 2·6 | 900 | | | 3 5½ | 2·65 | 950 | | 1 13 | 2·65 | 950 | | | 3 8 | 2·7 | 1000 | | 1 14 | 2·7 | 1000 | | | 3 10 | 2·75 | 1050 | | 1 15¼ | 2·75 | 1050 | | | 3 12 | 2·8 | 1100 | | 2 ½ | 2·8 | 1100 | | | 3 14 | 2·85 | 1150 | | 2 1¾ | 2·85 | 1150 | | | 4 | 2·9 | 1200 | | 2 3 | 2·9 | 1200 | | | 4 5 | 3· | 1300 | | | | | | | 4 15 | 3·2 | 1500 | | | | | | | 5 10 | 3·4 | 1700 | | | | | +-------+---------+------+-------+-------+---------+------+-------+ * The Shells were filled with sand.
+--------------------------------+--------------------------------+ | 8 INCH IRON. | 5½ INCH BRASS. | | Weight 8 cwt. 1 qr. | Weight 1 cwt. 1 qr. 10 lb. | | Shell filled 46 lb. | Shell filled 16 lb. | | Burst. powder 1 lb. 14 oz. | Burst. powder 10 oz. | | Blowing powder 1 oz. | Blowing powder ½ oz. | +-------+---------+------+-------+-------+---------+------+-------+ | Eleva-| Charge. | Fuze.| Range.| Eleva-| Charge. | Fuze.| Range.| | tion.| | | | tion.| | | | +-------+---------+------+-------+-------+---------+------+-------+ | degs. | lb. oz. | in. | yds. | degs. | lb. oz. | in. | yds. | | 15 | 14 | ·8 | 500 | 15 | 6 | ·7 | 350 | | | 1 | 1· | 550 | | 7 | ·75 | 400 | | | 1 2 | 1·1 | 600 | | 7 8 | ·8 | 450 | | 45 | 9½ | 1·9 | 450 | | 8 | ·85 | 500 | | | 10¾ | 2· | 500 | 25 | 5 8 | 1·1 | 480 | | | 12½ | 2·1 | 550 | 45 | 4 8 | | 300 | | | 13¾ | 2·2 | 600 | | 4 12 | | 350 | | | 14½ | 2·3 | 650 | | 5 | 1·75 | 400 | | | 15½ | 2·4 | 700 | | 5 4 | 1·8 | 450 | | | 1 | 2·45 | 750 | | 5 8 | 1·85 | 500 | | | 1 ½ | 2·5 | 800 | | 5 12 | 1·9 | 550 | | | 1 1¼ | 2·55 | 850 | | 6 | 1·95 | 600 | | | 1 2 | 2·6 | 900 | | | | | | | 1 2¾ | 2·65 | 950 | | | | | | | 1 3½ | 2·7 | 1000 | | | | | | | 1 4 | 2·75 | 1050 | | | | | | | 1 4¾ | 2·8 | 1100 | | | | | | | 1 5¼ | 2·85 | 1150 | | | | | | | 1 6 | 2·9 | 1200 | | | | | +-------+---------+------+-------+-------+---------+------+-------+
+-------------------------------+ | 4⅖ INCH BRASS. | | Weight 3 qrs. 19 lb. | | Shell filled 8 lb. | | Burst. powder 5 oz. | | Blowing powder ½ oz. | +-------+--------+------+-------+ | Eleva-| Charge.| Fuze.| Range.| | tion.| | | | +-------+--------+------+-------+ | degs. | lb. oz.| in. | yds. | | 15 | 4 8 | ·8 | 450 | | | 4 12 | ·85 | 500 | | 25 | 4 | 1·1 | 540 | | | | | | | | | | | | 45 | 2 6 | 1·65 | 300 | | | 2 9 | 1·7 | 350 | | | 2 12 | 1·75 | 400 | | | 3 | 1·8 | 450 | | | 3 4 | 1·85 | 500 | | | 3 8 | 1·9 | 550 | | | 3 12 | 1·95 | 600 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-------+--------+------+-------+
_Greatest Charges, and Ranges._
lb. oz. yds. 13 Inch, Sea 20 0 4200 10 ” 10 8 4000 13 Inch, Land 9 0 2900 10 ” 4 0 2400 8 ” 2 0 2000 5½ ” 9 1200 4⅖ ” 4·5 1000
Distance from the parapet of a battery, the parapet being 8 feet high, for Mortars at the following elevations:—
Elevation 45 30 20 15 10 degrees. Distance 12 13 21 30 40 feet.