Reports of Experiments With Small Arms for the Military Services, By Officers of the Ordnance Department, U.S. Army
The book Reports of Experiments With Small Arms for the Military Services, By Officers of the Ordnance Department, U.S. Army was written by author United States Army Ordnance Dept Here you can read free online of Reports of Experiments With Small Arms for the Military Services, By Officers of the Ordnance Department, U.S. Army book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Reports of Experiments With Small Arms for the Military Services, By Officers of the Ordnance Department, U.S. Army a good or bad book?
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.... Apl. 23 Calm. Calm. Oalm. Calm. Calm. Calm ; 3 missed. Calm. Calm. Strong wind rear ; 12 miss- ed. Strong wind rear ; 12 miss- ed. Strong wind rear; 12 miss- ed. Strong wind rear ; 17 miss- ed. 62 Table of mean drift. Distance. .54 calibre. .6 calibre. .69 calibre. Remarks. Ball 417 grs. Powder. . 50 grs. Ball 550 grs. Powder. . 60 grs. Ball 659 grs. Powder.. 70 grs. Yards. No. of shots. Inches to the right. No. of shots. Inches to the right. No. of • shots. Inches to the right. 200 500 1,...000 100 25 75 .9 14.4 29.2 200 *100 100 1.3 22.2 57.9 275 100 tioo 10.1 54.3^ 562. All the barrels were grooved from left to right, with a six- foot twist. * These shots were fired with a strong wind blowing towards the target. I Tliese shots were fired with a light wind blowing from the left of the target. The above is taken from the foregoing tables of co-ordi- nates of the centres of impact, and, with the exceptions noted, embraces all the shots fired in calm weather. From this it will be seen that the "drift," or tendency of the ball to deviate from the plane of fire, is in the direction of the twist of the grooves, and increases with the inclination of the grooves, and the distance passed over by the ball.
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