THE ROYAL ARTILLERY INSTITUTION. 
395 
General Means . 
Nature of gun. 
Mean range. 
Mean deviation 
from mean 
range. 
Mean reduced 
deflection. 
yds. 
yds. 
yds. 
Scott. 
2685 
47*6 
6-7 
Lancaster. 
2762 
38*3 
7*4 
French. 
2704 
27*2 
3*6 
Cost of Bifling, 
16 There is no difference worth mentioning in the cost of rifling on 
these three systems. 
Cost of Projectiles* 
17. The Superintendent Loyal Laboratory states that the cost of pro¬ 
jectiles weighing 100 lbs. would be respectively: 
Scott’s 1st system.... 
» 2nd „ .. 
Lancaster’s . 
French, on original plan ... 
„ on Palliser’s plan... 
£ s. d. 
442 14 0 per 1000 
727 1 1 
450 11 7 
570 6 9 
534 8 0 
Value as Shell Guns . 
18. There seems no reason for doubting that these guns will have the 
same relative value as shell guns, as they have when used with solid 
projectiles. The shells may be equal in length and weight, and carry equal 
bursting charges. 
Capability of firing Bound Shot . 
19. The Committee attach some importance to the power of firing round 
shot. 
The supply of rifled projectiles will always be limited, from their bulk and 
weight, and cost. It is not to be expected that they will be expended so 
freely as round shot, which will also be good enough for many instructional 
and other purposes, and can be carried in any desirable quantities. The 
existing 18-pr., 24-pr., 32-pr., and 68-pr. round shot of the service are not 
prepared for wooden bottoms, but those for 6-pr., 9-pr., and 12-pr. brass 
field guns, are so; the Committee, therefore, fired some round shot loose 
and some riveted. They were specially cast for the calibre, and weighed 
43 lbs. 6 oz. Mr Lancaster prepared his round shot for firing with special 
wooden tops and bottoms of an oval form, fitting the bore of the gun 
accurately. No material advantage was gained by their use, and it is 
evident that such a special provision would, on many accounts, be objec¬ 
tionable. 
[vol, iv.] 
52 
