THE ROYAL ARTILLERY INSTITUTION". 
63 
ACCOUNT 
03? AIT 
EXPERIMENT CARRIED ON AT SHOEBURYNESS, 11th DECEMBER, 1863, TO 
TEST THE PENETRATING POWER OP STEEL PROJECTILES FIRED PROM 
A 600-pr. AND A 300-pr. ARMSTRONG RIFLED GUN AT A FLOATING TARGET 
OF THE “ WARRIOR” CONSTRUCTION, AT 970 YARDS RANGE. 
[FURNISHED BY CAPTAIN E. J. BRUCE, R.A.] 
The plates of the target were hammered and manufactured at the Thames 
Iron Works. 
600-pr.,—Weight, 22 tons, 18 cwt. V 
Length, 14 t\ ft. I Carriage, Garrison, sliding on casemate 
Rifling, 1 turn in 65 cal. f platform ; slope, 3^°. 
Diameter, 13*3 in. J 
300-pr.,—Weight, 11 tons, 14 cwt. 3qrs. 
Length, 12i 7 a ft. 
Diameter, 10 - 39 in. 
Carriage, Garrison, sliding on an 
experimental slide ; slope, 10|°. 
CO 
Projectile. 
Effects. 
Number of round. 
| Photographic No. 
o 
9 
£ 
o 
C+H 
o 
<D 
| 
Nature. 
o5 
jQ 
.s 
Id 
’© 
£ 
Form. 
| Bursting charge. 
Charge in lbs. 
Length of charge. 
Elevation. 
g 
§ 
3! * 
Ph K 
V' r d 
"o 
o 
<D 
PA 
Deflection. 
Depth of indent 
in inches. 
Area of indent 
in inches. 
Velocity. 
Remarks. 
lbs. 
in 
O / 
Quad¬ 
rant 
ft. in. 
1 
600-pr 
muzzle 
load¬ 
ing 
shunt 
gun. 
Cast- 
iron 
shell 
612 
Cy- 
lm- 
dri- 
cal. 
70 
25 
2 5 
9 0 
nil. 
Fired for range at a wooden 
target moored at 1000yds. 
and a little clear of the 
iron one. Struck the 
target and broke into 
three pieces. 
2 
721 
Steel 
shell 
with 
cast- 
iron 
head 
» 
» 
f24 
2 10 
10 9 
Fired at “Warrior” target. 
To the right, and over. 
A large piece (apparently 
the head) struck the water 
about 150 yds. from the 
gun. 
3 
722 
» 
” 
» 
” 
” 
2 3 
10 6 
Struck top of wood and iron 
rib, and burst into four 
pieces. 
* Inside compressors used with both guns, 
f The “stemming” of the shells took half an hour to perform. 
