Nat 
Rifled Guns 
Wall piece .. 
3-pr. B. L. W. I. 
And targets. 
Velocity 
at impact. 
1141 
12-pr. n 
25-pr. n 
40-pr. n 
7" B. l.W. I, 
9- 22" M. L. W. ] 
10- 5" M. L. W. J 
1096 
Smooth-boei 
68-pr. C. L.95c\je spot. 
pugh. 
9-22" W. I. 
10*5" W. I. 
13" W. L- Hors 
13" Sea Service 
One 120-pr. M. 
Three U" B. L. 
One 68-pr. S. B 
1228 
1100 
o a depth | 
f 12"; hole j 
of iron and S 
plate 13" >■ 
layer, and j 
ole in plate | 
28" x 25", | 
'; hole in | 
ce a hole | 
1448 
Initial 
1630 
On impact 
1299 
Remarks. 
Cake copper. 8 
Target 4|" iron, 18" of wood, fth iron skin. 
Shot broke up. 
Shot broke up. 
Shot broke up after penetration. 
{ Target 6" plate on a compound backing of 
wood and iron 10" d,eep, and an iron skin 
thick, in two f" plates. 
'’It is stated in the record of this experi¬ 
ment that “ if the shield was exposed to 
continued firing from such a gun, it must 
soon be destroyed.” 
Thickness of iron in shield 15", in three 
thicknesses of 5". 
Target 54" iron and 27" of wood. 
(The thickness of timber in the side of 
X ship is about 24". 
c Plates of Al quality. 
Mr Mackay’s shot. 
f Shot broke up. 
) Target 8£" of iron, viz. 4f" outer plate, 
] three one inch plates, and f" skin. 
L Armour plates of bad quality. 
$ Target 6" of iron, in two plates (41" x 11") 
( and 29" of wood. 
C Two shot of this nature and weight, fired 
< with 40 lbs. charges, which struck close 
C together, penetrated the target. 
Target, 5|" plate, 9" wood and fths skin. 
C Target 5" of iron, in two plates (3f" x 1£") 
■j a compound, backing of wood and iron lOf ", 
(.6" of timber and iron skin f". 
C Shot made in Royal Laboratory of an im- 
X proved quahty of metal. 
Tired in salvo. 
