192 ARTILLERY AND MUSKETRY FIRE. 
weight will be only 13 lbs. 8 ozs., and the results arrived at are still 
more in favour of the gun. 
Thus the lowest unit of artillery ammunition is one round weighing 
16°5 lbs., and this forms a suitable weight for a basis of comparison 
with musketry fire—264 rounds of Lee-Metford small -arm’ ammu- 
nition also weigh 16°5 lbs. All deductions of effect for weight of 
ammunition fired will be referred to this basis.- 
The table of statistics gives the number of dummies hit per round 
in each series, and to obtain the number of hits per 16°5 lbs. it:is only 
necessary to multiply by 264. ming aad. dod 
The table of artillery statistics gives the average of dummies hit per: 
shell, and so a definite comparison of effect obtained for each 16°5) 
Ibs. of ammunition carried on the soldier or in the limber boxes is 
possible. b de’ aged 2 7d bow shana’ 
_ (L.) To calculate weight of ammunition expended per minute. 
' At Glenbeigh the mean rate of ordinary musketry fire (section 
volleys) was 1°8 rounds per man per minute ; of magazine volleys, 4°75 
rounds or practically three times as much, though sometimes a rate of 
nearly five times that of ordinary fire was obtained. 
The average rate of artillery ordinary fire may be taken at 4 rounds 
per minute for extended periods. Magazine fire has run as high as 
13°5 rounds per minute, but let us say 12 rounds or again three times 
the rate of ordinary fire; from these data it appears that a company 
of 100 men fires 10 lbs. 10 ozs. of amuiunition in ordinary, and 82 Ibs. 
a minute in magazine fire, while a battery fires 66 lbs. in ordinary and 
198 lbs. a minute in magazine fire. 
(2.) Per centage of target destroyed per 16°5 lbs. of ammunition 
without respect of time, personnel (dummies) only. 
~ In each of the series the number of dummies fired at is stated, also 
the number of dummies hit. As an example :—lIf the mean of series 1 
to 4 is taken, it will be seen that the mean per centages of target 
destroyed in each series is 4°5; that the average number of rounds 
fired was 901, and that the mean range was 2100 yds., so that, roughly, 
we may expect to get one dummy hit for every 200 rounds fired, and 
working out a small sum in proportion we may expect 1°32 per cent. 
of the personnel of a target of about 80 yds. front to be destroyed for 
every 264 rounds of 8.A.A. (equal in weight to one round of gun 
ammunition) fired ata range of 2100 yds. Similarly from the artillery 
table at a range of 2097 yds. we may expect that out of a target con- 
sisting of 43: dummies 1:13 will be hit by every shell, brought to a per 
centage this gives 2°63 per cent. which is about double the effect to 
be got from small-arm fire under similar conditions. 
(3.) Now we come to the question of the time necessary to pro- 
duce a given effect, say, to destroy 10 per cent. of a targets 
Using-ordinary fire a company 100 strong fired an average of 180 
yxounds.a ywinute, with magazine fire 475 rounds, and so under the con- 
ditions of target. which we are considering we may expect to get a per 
centage effect of ‘PF and 2°38 respectively, and in the first case it will 
-take 11 mimutes and m the second 4:2 minutes to reach an effect of 10 
percent.’ | sophorlnr #: a: 
