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The major three activities of the Proof House are: proof, safety and de-activation. Proof is the process of testing the safety of a gun barrel. It is still done as it has been since the company was established in 1637: by test-firing the gun with an over-pressure charge of powder. If the gun survives undamaged, it will be safe to shoot.
The Pistol, Browning FN 9mm, HP No. 2 MK.1/1 Canadian Lightweight Pattern was a series of experimental aluminum/aluminum alloy framed Browning Hi-Power pistols by the Canadian Inglis Company that reduced the weight by as much as 25% from 8.5 to 25.5 oz (240 to 720 g). [36]
The Pistol Auto 9mm 1A, [4] also known as IOF 9mm pistol, is a semi-automatic pistol manufactured by Rifle Factory Ishapore. [3] [4] It is a licensed copy of the Browning Hi-Power, made using tooling acquired from John Inglis and Company. [5] [6] It is the main service pistol of Indian military and police units.
Speer Gold Dot 124gr 9mm+P in SIG P226 magazines. Overpressure ammunition, commonly designated as +P or +P+ (pronounced Plus-P or Plus-P-Plus), is small arms ammunition that has been loaded to produce a higher internal pressure when fired than is standard for ammunition of its caliber (see internal ballistics), but less than the pressures generated by a proof round.
9mm Browning Long is similar to 9×19mm Parabellum, but has a slightly longer casing and is semi-rimmed; the cartridge headspaces on the rim. The cartridge was developed by FN to be used in the blowback-operated Model 1903, a pistol designed using the same Browning patent as the Colt 1903. Using a more powerful cartridge, such as the 9×19mm ...
The FN FNP pistol is a series of semi-automatic, polymer-framed pistols manufactured in Columbia, South Carolina, by FNH USA, a division of Fabrique Nationale de Herstal. [5] The handgun debuted in early 2006 and is variously chambered for the 9×19mm , .40 S&W , .357 SIG and .45 ACP cartridges.
Around 1987, Randy Shelley, an employee of Dillon Precision, necked down 10mm Auto brass to 9 mm. His goal was to get as much slow-burning powder in the case as possible in order to drive a 9 mm bullet to the velocity needed to qualify for the then-IPSC major power factor of 175.
In testing, the comparatively hard brass bullets wore out barrels far more quickly than standard solid lead and copper-jacketed lead rounds, since they did not deform to fit the rifling. [1] In an attempt to reduce barrel wear, the steel projectiles had a copper cup which made contact with the rifling; on brass projectiles, brass driving bands ...