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The program assigns a rating to each primer analyzed. [5] The rating is based on the proximity of the thermodynamic parameters to their ideal scores. In addition to the primer quality, its molecular weight and optical activity (both in nmol/A260 and μg/A260) are also presented for quantitation. Primers are analyzed for their GC% (Guanine ...
The .225 Winchester's case is a parent case for some of SSK Industries' [3] popular line of JDJ cartridges designed by J.D. Jones, chosen for its strength and semi-rimmed design which makes it well suited for use in break-open actions.
With quick firing guns (those using metallic cartridge cases) the case itself is fitted with the igniting medium; in England these are called primers. For small guns the case contains a percussion primer, usually a copper cap filled with a chlorate mixture and resting against an anvil. [2] The striker of the gun strikes the cap and fires the ...
Announced to the public in early 1996 at an NRA convention, the 9×23mm Winchester cartridge was claimed to have the lowest recoiling load and still qualify for Major Power Factor designation in the IPSC. [2] [4] The IPSC Power Factor (PF) is equal to bullet weight in grains times muzzle velocity divided by 1,000. A PF of at least 175 was ...
Winchester offered factory loaded .256 Magnum ammunition (and brass to reloaders) into the beginning of the 1990s. Winchester .256 factory loads used a 60 grain Open Point Expanding bullet at a MV of 2760 fps and ME of 1015 ft. lbs. from a 24-inch rifle barrel. That is about 500 fps faster than Winchester factory loads for the old .25-20 cartridge.
This primer was created specifically to provide reliable ignition for compressed powder charges in large capacity cases. [52] All reloading manuals provide loading data using only this particular primer to develop reloading data for the .460 Weatherby Magnum. In a pinch the Winchester WLRM primer or primers with similar brisance may be substituted.
Popularity of this cartridge has dwindled [2] but Browning Arms Company still produces the Browning BLR in .358 (no longer in production as of 10/24) and numerous other rifles, such as the Winchester Model 70, Winchester Model 88, and the Savage Model 99 are available on the used gun rack; a number of companies (see availability below) still ...
The .243 Winchester Super Short Magnum or .243 WSSM is a rifle cartridge introduced in 2003. It uses a .300 WSM ( Winchester Short Magnum ) case shortened and necked down to accept a .243in/6mm diameter bullet, and is a high velocity round based on ballistics design philosophies that are intended to produce a high level of efficiency. [ 2 ]