3d. To find the diameter of an iron ball. Multiply the weight by 7¹⁄₉ and the cube root of the product will be the diameter.

4th. To find the diameter of a leaden ball. Multiply the weight by 9, and divide the product by 2; and take the cube root of the quotient for the diameter.

Table of diameters of English iron round shot.

Kind6842322418129631
Inches8·6·6846·1055·5475·0404·4034·0003·4982·7751·92

Diameter of French iron round shot in English inches.

Kind3624161284
Inches6·6485·8085·0744·6104·0273·196

Table of grape shot, for sea and land service.

Kind.Weight of
each shot.		Total
weight
of the
grape
complete.
lbs.oz. lbs.oz.
42pounders40466
32——30341
24——20255
18——181915¹⁄₂
12——101015
9——013 76
6——08 58¹⁄₂
4——06 314¹⁄₂
3——00 210¹⁄₂
¹⁄₂——0 ³⁄₄lead 8³⁄₄

Table of English case shot for different services.

Sea service.Carronades.
Kind.Weight
of
each
shot.		Number
in
each
case.		Weight
of
each
case
filled.		Kind.Weight
of
each
shot.		Number
in
each
case.		Weight
of
each
case
filled.
Pr.oz.No.lbs.oz.Pr.oz.No.lbs.oz.
328 70338 688 90462
248 422215 428 66328
186 42158 328 40214
124 42115 248 32161
 93 44 89 186 31122
 62 40 52 124 32 82
 42 28 4—Tier shot for field service.
 32 20 215
 11¹⁄₄12 12¹⁄₄
Common land service.Pr.oz.No.lbs.oz.
12 pr. - 18 15188
Med.6¹⁄₂421711
6 pr. - 8-15 9—
Pr.oz.No.lbs.oz.Med.3-42 814
244 842111 3 Pr. - 4-15 410
122 84121 Med.1-42 46
 61¹⁄₂55 510¹⁄₂12 pr. - 14 121414
 31¹⁄₄52 214 light6 341411
6 pr. - 8-12 73
light3-34 77
3 pr. - 4-12 310
light1-34 311