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Main gun armament was five dual-purpose 5-inch/38 caliber (127 mm) guns in single Mk 30 turrets (numbered bow-to-stern from one to five), guided by a Mark 37 Gun Fire Control System, including a Mk 12 fire control radar and a Mk 22 height-finder (replaced by the circular Mk 25 radar postwar) linked by a Mark 1A Fire Control Computer and ...
Various calibers. available between .22-250 Rem. and .416 Rem., premium wood stock, matte metal finish, buttoning used on rifling for 22 or 24 in. stainless steel barrel, action made from 416 stainless or 4340 chrome moly steel (either left- or right-handed), 3 or 4 shot mag. supplied with 5 shot test target.
Straight-pull rifles differ from conventional bolt action mechanisms in that the manipulation required from the user in order to chamber and extract a cartridge predominantly consists of a linear motion only, as opposed to a traditional turn-bolt action where the user has to manually rotate the bolt for chambering and primary extraction.
The AMT Lightning 25/22 was a .22 LR-caliber semi-automatic rifle manufactured by Arcadia Machine & Tool (AMT). As is alluded to in the nomenclature, the Lightning 25/22 is functionally a clone of the Ruger 10/22 with the substitution of a larger 25-round magazine instead of the 10-round magazine used by Ruger .
The Mark 37 gun director had a cable connection to the hull, and occasionally had to be "unwound".) Fig. 26E8 on this Web page shows the director in considerable detail. The explanatory drawings of the system show how it works, but are wildly different in physical appearance from the actual internal mechanisms, perhaps intentionally so.
Attaching the barrel to the receiver using a barrel nut and a barrel with a shoulder is an alternative to action threads, which has been used in firearms such as the Sten gun and AR-15. Hand tools Quick barrel change systems is an increasingly popular alternative, as seen in for example SIG Sauer 200 STR , Roessler Titan or Blaser R8 .
A disassembled Mauser action showing a partially disassembled receiver and bolt. In firearms terminology and law, the firearm frame or receiver is the part of a firearm which integrates other components by providing housing for internal action components such as the hammer, bolt or breechblock, firing pin and extractor, and has threaded interfaces for externally attaching ("receiving ...
The .303 is an improved cartridge based on the .303 British and works well in Enfield and single-shot actions. Performance with a 150-grain (9.7 g) bullet is up to 3,235 ft/s (986 m/s) and with a 180-grain (12 g) bullet is up to 2,870 ft/s (870 m/s).