Testing the Value of Guns by Firing under Water. 171 



EXPERIMENT WITH SHARP'S RIFLE. 



Caliber .50 in., or 12.7 mm. Barrel 30 1-8 inches. The car- 

 tridges used have the composition in the above table, No. 8, 

 first column. 



TABLE NO. 10. 

 Height of water above the rifle, 11 % inches. 



NO. OF SHOTS. 



DISTANCE . 



REMARKS. 



1 



3 



feet 



10 inches. 



Penetrated the board. 



2 



3 



" 



HJ6 " 



" " 



3 



3 



" 



11% " 



" " " 



4 



4 



" 



y z inch. 



" •' " 



5 



4 



" 



1 



" " . " 



6 



4 



" 



1% " 



" '• " 



7 



4 





IK " 



Deep indentation. 



8 



4 



" 



23^ 



X in- indentation. 



EXPERIMENTS WITH U. S. MODEL RIFLE I. 



TABLE No. 11. 

 Height of water above the rifle, 11% inches. 



NO. OF SHOTS. 



DISTANCE. 



♦remarks. 



1 



a 



3 



4 



4 feet inches 

 4 " IK " 

 4 " 1% " 

 4 " 2 



Penetrated the board. 

 Imbedded. 



♦Same cartridge as used for the Sharp's Rifle. 



Tabulating the principal points in the above tables, we find 

 the results as follows : 



TABLE No. 12. 



The height of the water above the rifle in all cases 11% inches. 



NO. OF SHOTS. 



RIFLE. 



DISTANCE. 



REMARKS. 



3 



6 and 7 



* 



14 

 6 

 7 

 2 

 3 



U. S. Army Rifle 



Sharp Rifle 

 U. S. Model 



3 feet 9% inches 

 3 " 9% " 



3 " 8% " 

 3, " 8K " 



4 " 1% " 

 4 " X% " 

 4 " Xj4 " 

 4 " X% " 



Powder packed— Board penetrated. 



Imbedded. 

 Powder loose.— Board penetrated. 

 Deeply imbedded. 

 Board was penetrated 

 Deeply indented. 

 Board was penetrated. 

 Imbedded. 



*As the cartridges ran out, I was unable to try this experiment ; but as the bullet was 

 almost through at 3 feet 8% inches, my experience indicates that at 3 feet 8 J£ inches, the 

 bullet would have penetrated the board. 



