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The American rifle; a treatise, a text book, and a book of practical instruction in the use of the rifle
The American rifle a treatise a text book and a book of practical instruction in the use of the rifle Author:Townsend Whelen This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 Excerpt: ...was first manufactured, but not until 1912 was it placed on the market in cans. The pressures required to burn it properly are 52,000 to 5... more »7,000 pounds. It will not burn properly at lower pressure, although it will stand considerably higher ones without trouble. Its use, therefore, is restricted to the most modern of cartridges and rifles which develop and safely stand pressures up to 60,000 pounds. Until the introduction of the Newton series of cartridges, the.280 Ross was the only cartridge in which it could be used with success. In the.256 Newton it has proved to give good results, developing a velocity of about 2850 feet. It may also be used in the.30 Newton cartridge. No. 10 should aways be loaded by weight because the grains are too large to pass through any measure with accuracy. Only metaljacketed bullets can be used with it. I do not look for this powder to remain in general use much longer. Whatever is required of it can be done better by the modern progressive powders such as the Du Pont Nos. 13 and 15. These powders develop the same velocity as No. 10 with less pressure, or higher velocities with equal pressure. DU PONT IMPROVED MILITARY RIFLE POWDER NO. 15 This was the first of the new series of powders put on the market--the first progressive burning, smokeless, rifle powder--and it was this powder which opened the eyes of riflemen all over the world to the possibilities of improvement along the lines of increasing bullet velocities without increasing pressures. No. 15 is a dense, progressive burning, nitrocellulose powder, with the usual black tubular grain, measuring.085 inch long by.035 inch in diameter. It looks very much like Du Pont No. 20, although the grains are slightly thicker. Its resemblance to other members of the progressive burni...« less