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Components of a modern bottleneck rifle cartridge. Top-to-bottom: Copper-jacketed bullet, smokeless powder granules, rimless brass case, Boxer primer.. Handloading, or reloading, is the practice of making firearm cartridges by manually assembling the individual components (metallic/polymer case, primer, propellant and projectile), rather than purchasing mass-assembled, factory-loaded ...
Conversion from kilo grain feet per second to newton-seconds is trivial, since both the grain and foot is based on SI units. One troy grain is defined as 0.064 798 91 grams exactly [1] and one international foot is defined as 0.3048 meters, giving the exact conversion factor of 0.019 750 707 768. [2]
This measurement comes from the time when early cannons were designated in a similar manner—a "12 pounder" would be a cannon that fired a 12-pound (5.4 kg) cannonball; inversely, an individual "12-gauge" shot would in fact be a 1 ⁄ 12 pounder. Thus, a 10-gauge shotgun has a larger-diameter barrel than a 12-gauge shotgun, which has a larger ...
The MAUL is a shotgun based on Metal Storm's electronically initiated superposed-load technology. In this concept multiple projectiles, in this case of 12-gauge bore, are loaded nose to tail in a single gun barrel with propellant packed between them.
Some other notable modern straight pull bolt-action rifles are made by Chapuis, [9] Heym, [10] Lynx, [11] Rößler, [12] Strasser, [13] and Steel Action. [ 14 ] In the sport of biathlon , because shooting speed is an important performance factor and semi-automatic guns are illegal for race use, straight pull bolt-actions are quite common, and ...
One of the most common single-action rifles would be the New England Firearms' inexpensive break-open rifles, which are built on their 12 gauge break-open shotgun actions. The rifles, however, are made on a heat-treated steel action, and the shotgun actions are not heat-treated.
While shotguns had been used in earlier conflicts, the trench warfare of World War I demonstrated a need for standardized weapons and ammunition. [2] Initial issue with each shotgun was one hundred commercial-production paper-cased shotgun shells containing nine 00 buckshot pellets 0.33 inches (8.4 mm) in diameter.
Long recoil operation is found primarily in shotguns, particularly ones based on John Browning's Auto-5 action. In 1885 a locked breech, long recoil action was patented by the Britons Schlund and Arthur. [9] In a long recoil action, the barrel and bolt remain locked together during recoil, compressing the recoil springs.