98 
MINUTES OF PROCEEDINGS OF 
TABLE 
SHOWING DIMENSIONS, RIFLING, SERVICE, &C. OE BREECH-LOADING ARMSTRONG GUNS. 
It is probable that B.L. guns will not be made again in considerable numbers. There are none 
in the estimates 1868-9. 
Bore. 
Length of gun. 
Diameter. 
Rifling. 
Preponderance of 
sealed pattern. 
1 
Nature, 
weight, and 
service. 
Calibre. 
Length. 
Over all. 
From, muzzle 
to axis of 
trunnion. 
, From axis of 
trunnion to 
breech. 
Greatest over 
charge. 
c3 
r S 
fcQ 
1 
System. 
Twist. 
! 
Grooves.^ 
I 
Width of lands. 
Approximate m 
in the service. 
Breech Screw. 
7" of 82 cwt. 
// 
// 
// 
„ 
// 
„ 
// 
* 
fN 76 
n 
cwt.qrs.lbs. 
L.S. &. S.S. f 
7" of 72 cwt. 
7 
99-5 
120 
74-7 
45-3 
27-7 
13 
P 
1 in 
37 
I D -06 
( W-l 66 
fN 76 
•1233 
6 
3 
16 
950 
L.S. 
40-pr. of 35 cwt. 
7 
97-5 
118 
71-25 
46-75 
24-7 
13 
II 
n 
ID -06 
(w-166 
f N 56 
•1233 
7 
3 
27 
76 
L.S. & S.S,... 
40-pr. of 32 cwt. 
4-75 
106-375 
121 
73-875 
47-125 
16-4 
7-75 
II 
1 in 
36* * * § 
D -06 
(W-166 
fN 56 
•1 
4 
3 
0 
750 
L.S. & S.S,... 
20-pr. of 16 cwt. 
4-75 
106-375 
120 
73-875 
46-125 
16-438 
7-75 
II 
n 
I D -06 
(W-l 66 
(N 44 
•1 
6 
1 
19 
200 
L.S. 
20-pr. of 15 cwt. 
3'75 
84-0 
96 
59-375 
36-625 
12-5 
6-0 
II 
1 in 
38 
I D -06 
(W-166 
fN 44 
•1 
2 
0 
11 
100 
S.S. 
20-pr. of 13 cwt. 
3-75 
54-125 
66-125 
39-5 
26-625 
13-5 
6-25 
II 
n 
ID -06 
(W-l 66 
fN 44 
•1 
1 
2 
0 
30 
(boat) S.S. ... 
12-pr. of 8 cwt. 
3-75 
54-125 
66-125 
40-0 
26-125 
12-5 
6-0 
II 
a 
Id -06 
(w-l 66 
fN 3$ 
•1 
1 
1 
24 
300 
L.S. & S.S..., 
9-pr. of 6 cwt. 
3 
61-375 
72 
38-75 
33-25 
9-75 
5-75 
II 
n 
I D -045 
( W-148 
fN 38 
•1 
1 
3 
3 
700 
L.S. & S.S.... 
6-pr. of 3 cwt. 
3 
52*5 
62 
36-5 
25-5 
9-6 
5-3 
II 
n 
I D -045 
(W-148 
fN 32 
•1 
0 
2 
26 
275 
L.S. & S.S..., 
Wedge. 
64-pr. of 61 cwt. 
2*5 
53-0 
60-125 
37-0 
23-125 
7-0 
3-75 
II 
1 in 
30 
I D -045 
(W-148 
fN 70 
•1 
0 
1 
27 
100 
L.S. 
40-pr. of 32 cwt. 
6-4 
92-0 
110-0 
68-5 
41-5 
i 24*2 
14-1 
II 
1 in 
40 
! I D -06 
I (W*l 66 
! fN 56 
•1212 
5 
2 
0 
85 
S.S. § . 
4-75 
83-5 
98-0 
63-8 
34-2 
19-2 
7-75 
II 
03 
C3 a* 
19|H P 
1 1 D -06 
! (W-166 
•1 
2 
3 
5 
50 
Royal Gun Factory, (Signed) F. A. Campbell, Col. R.A., 
June, 1868. Superintendent, R.G.F, 
* The number, depth, and width of grooves are distinguished by letters, 
f The S.S. 7" B.L. guns will gradually be replaced by 7" M.L. rifled guns, 
X Polygroove. 
§ Takes the 40-pr. breech-screw ammunition, 
