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The Maschinenkarabiner 42(H) or MKb 42(H) (machine carbine Model 1942 (Haenel)) was an early German assault rifle firing an intermediate round of World War II. Designed in 1940 – 1941 by Hugo Schmeisser working for C. G. Haenel Waffen und Fahrradfabrik, several thousand were made and the gun was used on the Eastern Front in 1943.
The case was lengthened to 55 mm. This new load became the 7.5×55 Swiss . The new load used a modern spitzer bullet and more modern smokeless powders and produces a much higher velocity and pressure than the older 7.5×53.5mm load. 7.5×55mm should never be fired in the 1889 series Schmidt–Rubin.
During the early 1950s, the typical Soviet rifle squad was organized on the basis of the SKS and the RPD light machine gun, which was chambered for the same 7.62×39mm ammunition. [24] The RPD's role was the designated squad automatic weapon, laying down suppressive fire in support of infantry armed with semi-automatic carbines. [24]
Headspace positioning of rimless, rimmed, belted and straight cartridges Several different rimmed, .22 rimfire cartridges, which have a uniform forward diameter, and which have headspace on the rim, allowing any length of cartridge shorter than the maximum size to be used in the same firearm Firearms chambered for tapered rimmed cartridges like this .303 British cannot safely fire shorter ...
It has a 68.2 grains (4.43 ml) H 2 O cartridge case capacity. The exterior shape of the case was designed to promote reliable case feeding and extraction under extreme conditions for both bolt-action rifles and machine guns. 30-06 Springfield maximum C.I.P. cartridge dimensions. All sizes in millimeters (mm).
The Kel-Tec RFB (Rifle, Forward-ejection, Bullpup) [4] is a gas-operated bullpup type semi-automatic rifle, manufactured by Kel-Tec Industries of Florida.At the 2008 SHOT Show held from February 2 to 5 in Las Vegas, Nevada it was declared by Kel-Tec representatives that the RFB rifle would be made available to the public by the 4th quarter of 2008.
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.
The case is fire formed in a 6mm PPC rifle, expanding the case powder capacity. The fire formed case is cleaned to remove lubricant and powder residue. The neck is then expanded to 6 mm and the case length is trimmed to 1.486 inches (37.7 mm), after which the neck is chamfered internally and externally.