THE ROYAL ARTILLERY INSTITUTION. 
11 
The following tables show velocities computed by the above equation 
from data furnished by Matters machine of rotation. 
Table I. 
GIVING THE VELOCITY OP SHOT PIEED UNDER VARIOUS ATMOSPHERIC CIRCUMSTANCES.* 
Mattel's Machine. 
Nature of gun. 
Length 
of bore. 
Projectile. 
Charge. 
Velocities in weather. 
Nature. 
Weight. 
Very 
moist. 
Mean. 
Very 
dry. 
ft. 
oz. 
drs. 
Musket com. war powder. 
3-5 
Lead. 
1 
7 
1392 
1542 
1618 
Fine „ . 
n 
a 
a 
a 
1569 
1736 
1829 
Fowling a . 
n 
n 
a 
a 
1566 
1703 
1784 
Firework « . 
n 
a 
a 
n 
1566 
1706 
1779 
If the velocities given in this table can be depended on, they prove that 
the gunpowder used in Matters time must have been very inferior. 
Table II. 
SHOWING THE VELOCITY OP DIPPERENT GUNS, WITH VARIOUS KINDS OP POWDER* 
COMPUTED PROM MATTERS MACHINE. 
Nature of gun. 
Length 
of bore. 
Projectile. 
Charge. 
Velocity. 
Powder. 
Remarks. 
Nature. 
Weight. 
in. 
oz. 
drs. 
ft. 
Musket . 
22 
Lead. 
1-00 
7 
1390 
F. war. 
ii . 
ii 
ii 
ii 
n 
1367 
Fowling. 
n . 
ii 
ii 
ii 
n 
1372 
Fire-work. 
Rifled carbine. 
41 
M 
0-875 
7 
1956 
F. war. 
a . 
a 
II 
ii 
n 
1920 
Fowling. 
// . 
n 
II 
ii 
n 
1934 
Fire-work. 
Wall-piece ... 
66 
II 
2-50 
20 
1956 
F. war. 
a . 
a 
II 
ii 
rr 
1928 
Fowling. 
n . 
a 
II 
n 
// 
1923 
Fire-work. 
Musket. 
42 
II 
1-00 
7 
1736 
F. war. 
Wall-piece ... 
66 
II 
3-5 
23 
1770 
a 
II . . 
ii 
II 
3-0 
n 
1855 
a 
II . 
ii 
II 
3-0 
II 
2068f 
n 
f Of the same 
Musket . 
42 
II 
1-00 
5 
1399 
a 
diameter as the 
ii .. 
a 
II 
n 
7 
1736 
a 
first shot, a 
u . 
a 
II 
a 
10 
1984 
ii 
small pebble put 
Wall-piece ... 
66 
II 
2-50 
11-5 
1504 
n 
in the centre 
a .. 
ii 
II 
n 
18 
2056 
n 
while casting. 
/; ... 
a 
II 
a 
25 
2060 
n 
Musket. 
11 
II 
1-00 
7 
1037 
n 
n . 
22 
II 
II 
n 
1390 
n 
II .. 
44 
H 
II 
n 
1736 
H 
a . 
64 
II 
it 
ii 
1815 
II 
* “ Treatise on Gunpowder and Fire-arms,” by Gen, D’Antoni. 
