SHOOTING OF COAST ARTILLERY. 
185 
Form A.—The results in column nine (hits per gun per minute) are 
arrived at by the formula :— 
E 
No. of hits. 
T x n Total time x No. of guns 
Thus u X” company practice 1st series. 
E = 10J 
T = 29 
n = 2 
T x n 
= 0*181 (about) 
= (Fig.- 
1 thi 
of merit for 
this series. 
Form B. —The average hits per gun per minute for all the practices 
of a company (filled in in column eight of that form) are obtained by 
the formula. 
E 
S" Sum (T X n) 
Thus for “X ” Company H" = 544. Then 
Where H" = the sum of H of each series. 
S" sum 
series 1 
series 2 
series 3 
series 4 
series 5 
58 
72 
42*5 
18*7 
66 
= 443*2 for the six series fired. 
series 6 186 
IT 
C 0*123 (abo 
— J of “X” 
443*2 “ combin 
0*123 (about) figure of merit of all the practice 
Company, whether “ company 
combined.” 
Form A., for X Company, S.D., R.A. 
or 
Work and height. 
Date. 
F-i 
<U 
£ g 
1 & 
1° 
Nature of practice. 
Rounds fired. 
Hits. 
Time, minutes. 
Hits per gun per min. 
Range instrument 
used. 
Average range. 
CD 
t 
a 
M 
W. 129 
W. 129 
X. 74 
18. 8. 97. 
25. 8. 97. 
29. 1. 98. 
2, 6 W B.L. H.P. 
n it n 
4,- „ , 
Company 
n 
a 
14 
16 
10^ 
19 
91 
29 
36 
10-62 
•188 
•264 
•224 
D.R.F. 
n 
n 
1821 
2172 
1789 
Total averages . 
8 guns 
Company 
54 
39 
75-62 
-226 
D.R.F. 
1927 
Y. 84. 
Z. 89. 
W. 129 
8. 11. 97. 
8. 11. 97. 
25. 4. 98. 
l,17-72 // R.M.L 
1,6 W B.L. H.P. 
1,11" R.M.L. 
2,6" B.L. H.P. 
1,9-2" . n 
Combined 
0 
0 
4 
8 
18 
2 
7 
6i 
18-75 
33 
62 
•107 
•106 
•035 
D.R.F. 
« 
P.F.III 
1393 
1640 
2513 
Grand total for all 
practice . 
14 guns 
84 
54i 
189*37 
•12? 
1886 
