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A slamfire is a premature, unintended discharge of a firearm that occurs as a round is being loaded into the chamber, when the bolt "slams" forward (hence the name), as a result of the firing pin having not been retracted into the bolt, or from the firing pin being carried forward by the momentum of returning to battery. Similar to a hammer ...
However implemented, a choke typically consists of a conical section that smoothly tapers from the bore diameter down to the choke diameter, followed by a cylindrical section of the choke diameter. Briley Manufacturing, one maker of interchangeable shotgun chokes, uses a conical portion about 3 times the bore diameter in length, so that the ...
The choke tubes were knurled on the outside, but shotgun was also shipped with a wrench to assist with removing the choke tubes. [1] Specs: 3-Shot, Takedown, 20 gauge only (2 1/2 & 2 3/4-inch), 2 shell detachable magazine. Weight 6 1/4 lbs, barrel, 25" with three interchangeable choke tubes, Modified, Full & Improved Cylinder.
The term is related to the measurement of cannons, which were also measured by the weight of their iron round shot; an eight-pounder would fire an 8 lb (3.6 kg) ball. Therefore, a 12 gauge is larger than a 16 gauge. Due to problems to define an pound and to get pure lead the Gun Barrel Proof Act 1855 defined a Gauge as a list of defined Values.
Another cartridge conversion was the Pedersen device, which was designed to convert the bolt action Springfield 1903 Mark I into a 40 shot blowback semi-automatic firearm chambering a lengthened version of the .32 ACP cartridge. The 1903 Mark I differed from the standard rifle in that it had a slot cut in one side of the receiver, which served ...
The forend is connected to dual action bars which cycle the bolt when pulled back towards the receiver. As it travels to the rear, the shell latch is pushed out of the way by a camming surface on the action bar allowing a cartridge to drop into the carrier while the remaining shells in the magazine tube are held by the cartridge retaining latch.
The .325 Winchester Short Magnum is a Delta L problem cartridge, meaning it can present unexpected chambering and/or feeding problems. The Delta L problem article explains this problem in more detail. [6] The German 8×68mm S cartridge introduced in 1939 is probably the closest ballistic twin of the .325 Winchester Short Magnum. The .325 ...
This allows for the cartridge to be longer than the standardized 2.260" SAAMI maximum overall length. These cartridges can be safely loaded to a length that has the ogive portion of the bullet just touching the rifle's lands. Many competitive shooters will make these cartridges 0.005" less than the truly maximum allowable overall length, for ...