Читать книгу Bolt Action Rifles - Wayne Zwoll - Страница 37
ОглавлениеMauser Models 93 & 95
General Specifications
Type . . . . . . . . .Turnbolt repeater.
Receiver . . . . . .One-piece machined steel forging, unslotted bridge. Clip-charger guideway in bridge.
Bolt . . . . . . . . . .One-piece, dual-opposed locking lugs forward.
Ignition . . . . . . .One-piece firing pin, coil mainspring and cocking piece. Cocks on closing the bolt.
Magazine . . . . .Staggered column, nondetachable box type. 5-shot capacity. Detachable floorplate. One Spanish-made M93 has hinged floorplate.
Trigger . . . . . . .Non-adjustable, double-stage military type.
Safety . . . . . . . .Rotary wing type built into bolt sleeve. 180° swing from left to right, locks striker when “up,” locks striker and bolt when at right.
Extractor . . . . . .One-piece, non-rotating, spring steel. Attached to the bolt by a collar.
Bolt-stop . . . . . .Separate, hinged at left rear of receiver. Stops rearward bolt travel by contacting left locking lug.
Ejector . . . . . . .Swinging type, positioned in bolt-stop housing.
Commonly known as the 7mm Mauser, it is correctly referred to as the 7x57mm Mauser. This designates a case 57mm long and caliber of 7mm (bullet diameter of .284”). It is a rimless bottlenecked cartridge, with much of its long bullet exposed. The typical military round had a 173-grain round-nosed jacketed bullet driven at a muzzle velocity of about 2300 fps. Most military rifles chambered for this cartridge have barrels with a rifling twist of one turn in 8.8 ”, and are deeply throated to accept the long bullet.
Commercial 7mm Mauser cartridges loaded in the United States have a 175-grain softpoint bullet with a muzzle velocity of around 2490 fps. It is loaded to approximately the same overall length, using a bullet that matches the military chamber and rifling perfectly. Ballistically this 7mm load is comparable to the 308 Winchester (180-grain Power Point).