TEE ROYAL ARTILLERY INSTITUTION. 
331 
Table Y. 
a 
Velocity 
90 ft. 
Velocity at 
Relative 
Name of 
§ 
cp 
Projectile. 
muzzle. 
strength of 
competitor 
S’ 
t o 
from 
muzzle. 
by 12-pr. Arm¬ 
and gun. 
3 
Service 
Charge, 
K 
Weight. 
Diameter. 
charge. 
Toth 
strong gun.^[ 
lbs 
oz. 
lbs. 
in. 
ft. 
ft. 
ft. 
Britten* . 
5 
5 
0 
60-36 
6-24 
1199-7 
1209-2 
1213-5 
1170 
Jeffery . 
6 
5 
8 
48-06 
6-26 
1253-0 
1263*6 
1181-2 
1170 
Saddan. 
5 
7 
0 
54-20 
6-19 
1267-9 
1277-1 
1123-7 
1170 
Scottf . 
Lancaster. 
5 
6 
0 
51*00 
f 6-88 > 
1234-4 
1246-0 
1149-0 
1170 
Thomas. 
5 
7 
0 
66-92 
1 6-32 ) 
6-25 
1384-0 
1395-0 
1277-0+ 
1248 
French . 
5 
5 
8 
64-68 
6-36 
1052-4 
1059-0 
1148-4 
1248 
Shuntf.. 
6 
5 
8 
55-25 
6-32 
1161-9 
1170-1 
1172-7J 
1248 
1 Service 32-pr. 
10 
10 
0 
31-60 
6-166 
1653-7 
1690-0§ 
2 
5 
3 
2 
31-37 
6-166 
977-5 
993-7J 
988-8J 
1195 
2 ” 
5 
2 
7 
24-31 
6-164 
968-0 
1195 
1 Armstrong’s 40-pr. 
No. 644 . 
5 
5 
0 
41-25 
4-75 
1190-3 
1197-5 
1248 
2 „ „ „ 
5 
5 
0 
40-5 
4-75 
1219-7 
1227-3 
1248 
2 
5 
4 
0 
40-5 
4-75 
1076-2 
1081-4J 
1248 
1 Armstrong’s naval 
40-pr., No. 184.|| 
5 
5 
0 
41-0 
4-75 
1168-5 
1174-8 
1050-7 
1248 
1 Solid shot. 2 Common shell. 
* Min. 5547. t Burst before this experiment. X Observed velocities. 
§ Determined by Captain A. Noble. || Min. 7607. 
The last column contains the velocities in feet per second of 12-pr. shot, fired from the standard 
gun on each occasion, with the same powder as that of the gun named. 
13. As a sequel to the whole, and as affording a far more satisfactory 
test of endurance than can be obtained by firing extra charges, it was 
decided, with the approval of the Secretary of State (Min. 4208), to 
continue the practice with those guns which remained serviceable until they 
should burst, using the service charge and service weight of projectile. 
Shot were substituted for shells in the case of Messrs Lancaster and Jeffery, 
for the sake of economy, and the guns were fired into the proof-butt, 
Woolwich. 
Table YI. 
Min. 
Gun. 
Charge. 
Weight of 
shot oi- 
shell. 
Previously 
fired. 
Fired at 
proof-butt. 
Total 
endurance. 
7054 
Britten. 
lbs. oz. 
5 0 
lbs. 
50-00 
363 
1123 
1486* 
6234 
Jeffery. 
5 8 
47-00 
113 
250 
363 
7738 
Lancaster ... 
6 0 
50-00 
200 
1800 
2000* 
7071 
Eaddan. 
7 0 
54-12 
125 
90 
215 
[vol. III.] 
* Not burst. 
DD 
