Man I want to see some of your safes,,,,
Good one Ulrice tangolima
Video of a nice one being fired
http://www.bing.com/videos/search?q=...4A&FORM=VRDGAR
http://world.guns.ru/rifle/autoloadi...-vz5257-e.html
The Czechoslovak army recognized the need for intermediate cartridge, and by the 1952 perfected and adopted the 7.5x45mm Vz.52 ammunition and two infantry weapons for it, the Vz.52 semiautomatic carbine and Vz.52 light machine gun. The 7.5x45mm ammunition is slightly more powerful than the Soviet 7.62x39mm ammunition, and has slightly better long-range performance. By the mid-1950s Czechs had the 7.5mm fully automatic rifle in development, but, under the pressure of Warsaw pact standardization, enforced by Soviet Union, Czechoslovak army ended up adopting soviet 7.62x39mm ammunition as a standard in 1957. Consequently, they rebarelled their machine guns and carbines for "new" ammunition, but the modified Vz.52/57 carbines not stayed in service for too long. Since the late 1950s they were gradually replaced in service with 7.62x39mm SA Vz.58 assault rifles. Many of Vz.52 and Vz.52/57 carbines were exported and sold as surplus, and can be encountered in various parts of the world.
Vz.52 is a semi-automatic, gas operated, magazine fed weapon. The short stroke, annular gas piston closely resembles that of Mkb.42(W) German assault rifle. The bolt is locked by tipping its front part with locking lugs down, into the recesses of the receiver. When the last shot is fired and magazine is empty, a bolt stop device is activated to hold the bolt open for faster reloading. The trigger unit very closely resembles that of US M1 Garand rifle, with safety lever located at the front of the trigger guard. Open sights are marked up to 900 meters, in 100 meters increments. The stock is made from wood, with separate top cover above the gas system. Integral blade bayonet is hinged to the stock and folds to the left and back, when not in use. A hollow cavity in the butt, under the buttplate, is used to store cleaning kit. Removable box magazine holds 10 rounds, but also can be reloaded in place from stripper clips.
The vz. 52 rifle (often incorrectly called the "CZ 52") is a self-loading rifle developed shortly after the Second World War in Czechoslovakia. Its full name is 7.62mm Samonabíjecí puška vzor 52.[2] Vz. 52 is an abbreviation for vzor 52, meaning "model 52". It fires the unique 7.62×45mm cartridge. It is considered both reliable and accurate. The first 5000 vz. 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.[3]
The vz. 52 is a shoulder-fired semi-automatic rifle with a tilting-bolt locking mechanism powered by an annular short-stroke gas piston system. The bolt is locked by two lugs that recess into slots machined into the receiver. However, unlike most vertically-locking breech mechanism, the rifle's bolt has the unusual feature of tipping the bolt frontally to lock the mechanism, whereas other tipping bolt designs tip the bolt to the rear.[2] The piston is actuated by residual gases from the bore, vented into a sleeve surrounding the barrel to overcome the inertia of the bolt carrier, bolt and the resistance of the return spring in order to unlock the chamber, eject the empty cartridge casing and then introduce a new round into the chamber upon return to battery.
The barrel is press-fit and pinned into the receiver. The manual safety switch is placed inside of the trigger guard and is manipulated by the shooter's index finger. The trigger mechanism closely resembles that used in the American M1 Garand semi-automatic rifle. The cocking handle is integrated into the bolt carrier and is located on the right side of the rifle; this arrangement enables the shooter to reload the rifle without disturbing his aim.
The rifle is equipped with open-type iron sights with a hooded front post and V-notch rear sight placed on a sliding tangent, adjustable for elevation between 100–950 m. The rifle can also accept day and night-time optics that interface with an optional, receiver-mounted side rail. The one-piece pistol grip stock is carved from either walnut or beech and stained a yellowish-brown color; the stock has a hollowed butt which is used as a storage compartment for a cleaning rod, oil bottle and accessories. The rifle has an integral blade bayonet which folds into a recess carved into the stock on the right side.
The vz. 52 feeds from a detachable box magazine with a 10-round cartridge capacity but could also be rapidly recharged from stripper clips with the bolt retracted. For this purpose, a stripper clip guide is milled into the front face of the bolt carrier, aligning with the magazine when the bolt is locked in the open position. This is the primary method of reloading the rifle as infantrymen were only issued 2 magazines per rifle. It ejects cartridge cases vigorously forward and to the left.