330 
MINUTES OF PROCEEDINGS OF 
Table IV. 
ABSTRACT OF PRACTICE MADE WITH 32-pr. CAST-IRON GUNS, RIFLED ON 
DIFFERENT SYSTEMS, IN COMPARISON WITH AN ARMSTRONG 40-pr. AND 
A SMOOTH-BORED 32-pr.; THE WHOLE FIRING A UNIFORM PROPORTION¬ 
ATE CHARGE OF ONE-TENTH. 
1 
2 
3 
4 
5 
0 
7 
8 
9 
10 
11 
12 
13 
14 
Name of 
competitor 
and gun. 
Date. 
Direction and 
force of wind. 
■-§ 
2 
'o 
6 
£ 
Charge. 
Mean weight 
of projectile. 
| Elevation. 
Mean reduced 
time of flight. 
Ranges. 
Mean diff. of 
range. 
Mean observed 
deflection. 
Mean reduced 
deflection. 
i 
a 
Max. 
Mean. 
1 
lbs. 
lbs. 
o 
// 
yds. 
vds. 
yds. 
yds. 
yds. 
yds. 
40-pr. breech¬ 
Oct. 11, 1861 
5-6 
5 
4-106 
41-06 
2 
3-40 
9551073 
1033 
32-8 
2*4 
1-2 
loader,No.24 
„ 
5 
5 
6-241831 Il950 
1886 
41-2 
2-1 
•7 
5 
10 
11-38 3222 3354 
3262 
37-0 
3-0 
1-9 
Mr B. Britten 
Aug. 6, 1861 
3-4 
5 
5-038 
50-38 
2 
3-1810831125 
1103 
13-8 
1-7 
1-5 
No. 8658 
„ 
\ 
5 
5 
6-44 2045 2197 
2123 
41-6 
6-8 
3-2 
}> 
A 
5 
10 
11-52 3425 3523 
3465 
24-4 
11-5 
6-5 
Mr A. Jeffery 
Aug. 6, 1861 
do 
5 
4-791 
47-91 
2 
2-94 
945 1067 
1018 
29-6 
2-3 
2*1 
No. 8460 ' 
5 
5 
6-14 1958 2053 
1991 
25-2 
7-8 
33 
5 
10 
11-62 2896 3440 
3282 
154-4 
24-0 
12-8 
Mr Haddan. 
Aug. 6, 1861 
do 
5 
5-450 
54-50 
2 
2-70 
837 
944 
905 
31‘8 
2-4 
1-3 
No. 8640 
}) 
5 
5 
5-7016181888 
1752 
104-4 
6-2 
5-1 
>> 
i 
5 
10 
10-78 
3037 
3250 
3109 
56-4 
22-9 
4-8 
Shunt . 
Oct.ll, 1861 
f 
5-6 
1* 
5-635 
56-35 
2 
1093 
5-3 
No. 6842 
Mr Lancaster 
Octal, 1861 
do 
5 
5-078 
50-78 
2 
3-04 
967 
1087 
1032 
41-8 
2-4 
2-6 
No. 9050 
5 
5 
6-441961 
2097 
2032 
34-2 
11-6 
11*3 
» 
5 
10 
11-48 3113 
1 
,3464 
3270 
126-2 
12-2 
10-9 
French . 
Mar. 9, 1862 
do 
5 
6 554 
65-54 
2 
2-76 822' 
909 
861 
32-0 
3-40 
•4 
No. 9130 
5 
5 
6-201817 
,1877 
1839 
19-5 
8-90 
1-2 
» 
1 
5 
10 
12-07 3233 
3308 
3274 
27-7 
25-90 
•3 
Service 32-pr. 
Oct. 11,1862 
V 
5-6 
5 
3-125 
31-25 
2 
2-80 
653 
! 770 
721 
34-8 
1-5 
1-1 
smooth-bored 
}} 
5 
5 
5-3211861351 
1302 
68-4 
3-7 
3-7 
No. 7138 
55 
5 
10 
8-88 1770 2160 
l i 
2029 107-0 
1 
12-4 
12-4 
12. On the completion of the practice, the Committee took steps to 
ascertain the initial velocity of the projectiles of each gun, by means of 
Navez's electro ballistic apparatus. The results are contained in the fol¬ 
lowing Table, to which is added the velocity as observed or deduced from 
the observations for an equal relative charge of one-tenth. 
* Gun burst at 2nd round, or 327th in all. 
