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The head of a brass case can be work-hardened to withstand the high pressures, and allow for manipulation via extraction and ejection without rupturing. The neck and body portion of a brass case is easily annealed to make the case ductile enough to allow reshaping so that it can be handloaded many times, and fire forming can help accurize the ...
The brass suppliers or cartridge manufacturers would sometimes have the brass batch or cartridge lot number to the right of their code letter. The post-war headstamp had the manufacturer code (AI / EMZ or NWM) at the 6 o'clock position. AI Artillerie Inrichtingen NV ("Artillery Factories") (1679–1983) – Zaandam-Hembrug, Netherlands ...
When the firearm is out-of-battery, the round is not fully chambered, or the bolt face is not against the rear of the cartridge, and if the round is fired in this situation, the case will fail, causing high-pressure hot gases, bits of burning propellant, and fragments of the casing itself to be thrown at high speed from the firearm.
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 ...
The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the .223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as .223 Remington, since this can result in damage to the rifle or injury to the shooter. [ 1 ]
The first French brass cartridge for military use. Black powder. [3] Replaced by 8mm Lebel. [3] 11×60mm Mauser: 1871 Germany R 11×60mmR 1430 [3] 2013 [8] 2.815 77 [3] 0.446 [3] 60mm The first black powder cartridge adopted in large numbers by the unified German Army, it was used in the 1871 and 1871/84 rifles. 11×60mm Murata: 1880 Japan R 11 ...
In Norway there have been several examples of .308 Winchester cartridges being fired in Norwegian K98k surplus rifles rechambered for .30-06 Springfield. In Norwegian military nomenclature the first is called 7.62×51 mm (nicknamed " 7.62 kort ", literally '7.62 short'), while the latter is called 7.62×63 mm (nicknamed " 7.62 lang ", literally ...
Patent 5,187,324 was filed by John Ricco of CP Bullets in 1992 for an "improved 9mm cartridge casing" that he called the 9×23mm Super. He had the prototype brass casings made by Winchester Ammunition. They then modified the design slightly and filed it under patent 5,507,232 in 1995.