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The CZ 511 is a semi-automatic.22 LR rifle made by Česká Zbrojovka Uherský Brod at the Česká Zbrojovka Strakonice factory in Strakonice, Czech Republic.They had stopped selling the rifle to the United States at one point, but there became a high demand for them in the US, and they started to import them again.
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In 2010 the company was renamed to Zbrojovka BRNO, s.r.o. In 2005 CZ became the owner of Dan Wesson Firearms through its subsidiary CZ-USA. In 2011 the company began production of the new generation of CZ 805 BREN A1/A2 assault rifles, CZ SCORPION EVO 3 A1 submachine guns and CZ 805 BREN G1 grenade launchers for the Armed Forces of the Czech ...
Its full name is 7,62mm samonabíjecí puška vzor 52. [8] Vz. 52 is an abbreviation for vzor 52 , meaning "model 52". It fires the unique 7.62×45mm cartridge . 52 rifles were made by Považské strojárne in Považská Bystrica , but due to production difficulties, its manufacture was taken over by Česká zbrojovka Uherský Brod .
One problem with the en bloc system is that the firearm cannot be practically used without a ready supply of (mostly disposable) clips. Paul Mauser would solve this problem by introducing a stripper clip that functioned only to assist the user in loading the magazine quickly: it was not required to load the magazine to full capacity.
The .22 Winchester Magnum Rimfire, also known as the .22 WMR, .22 Magnum, .22 WMRF, .22 MRF, [2] or .22 Mag, is a rimfire cartridge.Originally loaded with a bullet weight of 40 grains (2.6 g) delivering velocities in the 2,000 feet per second (610 m/s) range from a rifle barrel, .22 WMR is now loaded with bullet weights ranging from 50 grains (3.2 g) at 1,530 feet per second (470 m/s) to 30 ...
The CZ 52 pistol is a roller-locked short recoil–operated, detachable box magazine–fed, single-action, semi-automatic pistol chambered for the 7.62×25mm Tokarev cartridge (the gun was originally designed for 9×19mm Parabellum caliber but due to political pressures had to be redesigned for the then-standard Soviet pistol cartridge).
There were a number of engineering challenges to overcome in designing an autoloading .22 WMR handgun such as extraction problems. The extraction problems stem from the fact that the slow burning rifle powder of the .22 WMR cartridge develops a late peak pressure. This can cause the case mouth to expand and jam in the chamber when fired from a ...