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The .308 Marlin Express is a cartridge developed in 2007 by Marlin Firearms and Hornady. It is based on the .307 Winchester with a goal to duplicate .308 Winchester performance. The cartridge uses a slightly shorter, semi-rimmed case similar to that of the .220 Swift to function in lever-action rifles.
The initial round of tests, and most later ones tested handgun bullet velocity as it relates to the length of the barrel. The BBTI team wanted to test barrel lengths from 2 to 18 inches in one-inch increments. To have a consistent platform to test the various sizes and shapes of ammunition, a gunsmith was commissioned to create a custom barrel ...
The .308 Winchester has a 3.64 mL (56 gr H 2 O) cartridge case capacity. [9] The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles and machine guns alike, under extreme conditions. .308 Winchester maximum C.I.P. cartridge dimensions. All dimensions in millimeters (mm) and inches.
Test barrel length: 26" Source(s): Accurate Powder [ 2 ] The 7mm Shooting Times Westerner , sometimes referred to as the 7mm STW , began as a wildcat rifle cartridge developed by Layne Simpson, Field Editor of Shooting Times, in 1979. [ 3 ]
Ballistic gelatin is traditionally a solution of gelatin powder in water. Ballistic gelatin closely simulates the density and viscosity of human and animal muscle tissue, and is used as a standardized medium for testing the terminal performance of firearms ammunition. While ballistic gelatin does not model the tensile strength of muscles or the ...
The .338 Federal is a rifle cartridge based on the .308 Winchester case necked up to .33 caliber.It was created by Federal Cartridge and Sako in 2006 and intended as a big-game cartridge with reasonable recoil for lightweight rifles.
The test cartridge must be inserted into the chamber in such a way that the hole in the test cartridge case lines up with a gas port hole that channels the gas pressure from the cartridge case to the face of the sensor. The measurement accuracy of the pressure measurements with 21st century high-pressure sensors is expected to be ≤ 2%. [7]
Test barrel length: 24 in (610 mm) ... with the Colt Canada C19 chambered as evaluated in 7.62×51mm NATO/.308 Winchester. ... point fired into ballistic gelatin ...