480 
ARMOUR-PIERCING PROJECTILES. 
The best type of each of the other three classes was selected for the 
continuance of the experiments, viz.:— 
Chilled cast-iron. B.L. improved. 
Cast-steel bodies and chilled-iron heads ... Messrs. Cammed & Co. 
Forged steel. Sir J. Whitworth & Co. 
At this stage 33 rounds had been fired, made up as follows :—- 
Whitworth . 4 
Cammed . 3 
Firth. 1 
Terre-Noire . 2 
Hadfield . 4 
Griison. 3 
Landore . 2 
Vickers..... 2 
Krupp . 2 
Service. 2 
Improved E.L. 3 
Gregorini... 2 
Finspong . 3 
After this 41 more rounds were fired, of which four were from the 
6-in. Armstrong B.L. gun, at various targets: chiefly the 12-in. 
wrought-iron plates; steel-faced ( i.e ., steel welded to wrought-iron) 
plates; and wrought-iron plates with air-spaces between, consisting 
of two 2-in. and one 8-in. plate. 
The 6-in. B.L. gun was fired at 10, 12, and 13-in. wrought-iron 
plates. 
The 41 rounds were thus made up— 
Terre-Noire . 3 
Hadfield . 1 
Service . 1 
Firth. 3 
Cammed. 11 
Gregorini . 3 
Whitworth 
( 9-in. gun 10 
\ 6-in. gun 2 
B.L. improved . 3 
Capped Palliser. 2 
E.O.C. chilled, from 6-in. 
B.L. gun . 2 
Of the Whitworth rounds three were with shell that had been pre¬ 
viously fired and re-studded. 
The “ capped Palliser ” were fired to try the effect of 9-in. service 
projectiles, fitted with a wrought-iron cap, against steel-faced armour. 
The cap fitted over the head of the projectile, and extended as far as 
the extractor holes, into which it was secured by screws. Above the 
tip of the projectile the cap was 2*25 ins. thick, and its point was 
truncated to a breadth of 2*5 ins. 
The origin of the experiment was that on one occasion a service 
Palliser shot had been fired at a steel-faced plate with a piece of 2|-in. 
wrought-iron plate placed in front of it. It was then found that the 
effect of the steel as regards the breaking up of the head of the 
projectile was completely neutralised, and its resistance consequently 
diminished to even less than that of ordinary soft-iron armour. 
Two rounds were fired at damaged plates (no others being available), 
bat owing to the condition of the plates no decisive results were 
obtained. 
At a later stage two more rounds were fired direct at the 
“ Inflexible” 9-in. steel-faced plates, and one obliquely at a 12-in. 
steel-faced block. 
