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Due to the heavy bullet and powder charge, the gun has significant recoil but this is mitigated by the low velocity, resulting in recoil being delivered as a strong push rather than a violent blow. Rifles chambered for this cartridge tend to be heavy double-gun style, and are typically quite expensive. [3] Dimensions of the .470 Nitro Express.
A .308 BR (Bench Rest) case necked down to .22 caliber, the .22 CHeetah provides a flat trajectory with a .22 caliber bullet that has a relatively high speed of 4,000 ft/s. Hard on barrels, it provides a very effective 300-yard varmint round. [15].303/25.
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This process produces a thin, hard shell (between 0.25 and 0.75 mm; 0.0098 and 0.0295 in) that is harder than the one produced by carburizing, and can be completed in 20 to 30 minutes compared to several hours so the parts have less opportunity to become distorted. It is typically used on small parts such as bolts, nuts, screws and small gears.
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In addition to case shape, rifle cartridges can also be grouped according to the case dimensions of a cartridge, this is usually referring to the cartridge's overall length (COL), which in turn dictates the minimal receiver size and operating space (bolt travel) needed by the action, into either "mini-action", "short-action", "long-action ...
The .308 Winchester has a 3.64 mL (56 gr H 2 O) cartridge case capacity. [9] The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles and machine guns alike, under extreme conditions. .308 Winchester maximum C.I.P. cartridge dimensions. All dimensions in millimeters (mm) and inches.
The term belted magnum [1] [better source needed] or belted case refers to any cartridge, but generally a rifle cartridge, with a shell casing that has a pronounced "belt" around its base that continues 2–4 mm (0.079–0.157 in) past the extractor groove.