. Annals of the New York Academy of Sciences. Science. 170 Testing the Value of Guns by Firing under Water. the powder packed with a paper wad, although Mr. Alford stated to me that it was the impression of sportsmen that there would be no difference. I decided therefore to test this point by actual experiment. To prepare cartridges for the Spanish model would have involved considerable extra expense; I therefore concluded to substitute a Sharp's Rifle of .50 in. caliber. The cartridges were composed as follows: TABLE NO. 8. (SEE TABLES 1, 2. 3.) PABTS. I CABTRIDGES FOB .50 CA1/IBEB. ii. cartr
. Annals of the New York Academy of Sciences. Science. 170 Testing the Value of Guns by Firing under Water. the powder packed with a paper wad, although Mr. Alford stated to me that it was the impression of sportsmen that there would be no difference. I decided therefore to test this point by actual experiment. To prepare cartridges for the Spanish model would have involved considerable extra expense; I therefore concluded to substitute a Sharp's Rifle of .50 in. caliber. The cartridges were composed as follows: TABLE NO. 8. (SEE TABLES 1, 2. 3.) PABTS. I CABTRIDGES FOB .50 CA1/IBEB. ii. cartridges (air) FOR .58 CALIBER. III. CARTRIDGES FOB .58 CALIBEB. Grains. Grams. Grains Grams. Grains. Grams. 669 94 43 41 45 061 .07 69 91 449 75 3 05 4 53 .198 70 19 i 13 811 f " of bullet 10 485 " of paraffine * 895 * .114 j Total 648 03 669 94 695 43 45 061 * Wad. The following tables contain the report of my experiments conducted with the new cartridges, on May 4th. Temperature of the water, 19° C, or F. EXPERIMENTS WITH THE U. S. ARMY RIFLE. TABLE No. 9. Height of water above the rifle, 11 >£ inches, in each * Quite a difference in effect will be noticed between the same cartridge in the second and third columns of the table, owing to the powder being Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York Academy of Sciences. New York, New York Academy of Sciences
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