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The Stoner gas system of the American M16, M4, and AR-15 style rifles utilize a modified version of this where a gas tube delivers gas into the bolt carrier to impinge on the bolt, which acts as a piston to cycle the rifle. One principal advantage is that the moving parts are placed in-line with the bore axis meaning that sight picture is not ...
This magnified image of H110 illustrates propellant spheres passed between rollers to produce a uniform minimum dimension. Ball propellant (trademarked as Ball Powder by Olin Corporation and marketed as spherical powder by Hodgdon Powder Company [1]) is a form of nitrocellulose used in small arms cartridges.
The .300 Whisper (7.82x34mm) is a CIP standard [1] cartridge in the Whisper family, a group of cartridges developed in the early 1990s by J.D. Jones of SSK Industries.It was developed as a multi-purpose cartridge, capable of utilizing relatively lightweight bullets at supersonic velocities as well as heavier bullets (200–250 grains) at subsonic velocities.
The vent-sealing tube accurately fits into a chamber formed at the end of the vent, and is held in place by the gun lock or some similar means. The force of the explosion expands the tube against the walls of its chamber, while the internal structure of the tube renders it gas-tight, preventing any escape of gas through the vent. [3]
Gas-operated firearms (2 C, 31 P) Pages in category "Gas-operated reloading" This category contains only the following page.
It is of passing interest that the bullet for the old British 333 Jeffery is much like the 300-grain copper tube bullet which Winchester introduced for the 338 Magnum. The 35 Whelen was the first of 3 (three) efforts by Griffin and Howe to produce a cartridge that would meet this ideal. All were in 35 caliber.
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Gelatinised nitrocellulose is a plastic, which can be formed into cylinders, tubes, balls, or flakes known as single-base propellants. The size and shape of the propellant grains can increase or decrease the relative surface area, and change the burn rate significantly. Additives and coatings can be added to the propellant to further modify the ...