igniting by a Spring instead of a Loch, 28 1 



Col. Miller, with his own powder. 



Round 1. charge 1 drachm (Not taken, struck near a former 



shot). 

 2. , . through 7 boards, struck 8th 



slightly. 



3. (The same as the first). 



4«. through 7 boards. 



5. 6 boards, struck 7th 



slightly. 



Government rifle with Government rifle powder. 



Weight of rifle 9£ lbs. ; length of barrel 30 inches ; balls 20 



to the pound. 

 Round 1. charge 3 \ drachms (4? drachms including priming) 

 thr6ugh 8 boards, just touched the 9th. 



2. 8 boards, split the 9th. 



3. 8 boards, splintered the 9th. 



4. 8 boards, splintered the 9th. 



5. 8 boards, splintered the 9th. 



6. 8 boards, split the 9th. 



Col. Miller's rifle, 28 balls to the pound. 



Round 1. charge \\ drachm, through 7 boards, struck the 8 th. 

 2. 1 \ through 6 boards, struck the 7th. 



Government rifle, 20 balls to the pound. 



Round 1. charge 1 drachm, through 5 boards, struck the 6th. 



2. 1 \ « 5 boards, struck the 6th. 



3. \\ 6 boards, struck the 7th. 



Here ends the Report. — From the preceding experiments, 

 the great superiority of percussion over the flint-lock is very 

 apparent, as the penetration of the percussion rifle is not very 

 much inferior to that of the flint-lock, with a much heavier 

 ball, and four times the quantity of powder. The penetration 

 of the percussion rifle also does not appear to be increased 

 by increasing the charge beyond a drachm ; which tends to 

 prove, if any proof were wanting, that moderate charges are 

 the best, and that heavy ones only tend to destroy arms, and 

 an unnecessary expenditure of ammunition, without producing 

 any corresponding effect. 



New Series. Vol. S. No. 16. April 1828. 2 O XLVI. Ac_ 



