Post by Caliber on Aug 4, 2012 3:34:49 GMT -5
The 12.7x25mm Auto is a custom-tooled pistol cartridge built for use in .45 Auto-based auto-loading platforms. It was designed, developed, and created by munitions expert and arms technician Celeste Wake in the year 2011. Wake began development on this new cartridge when approached by a United States Delta Force Operator-- Phoebe Galloway-- whom wanted a more efficient cartridge for use in the Heckler & Koch Mark 23 platform, which is widely considered to be far too bulky for the power tier that it has found itself locked in, being chambered for the very average and (by modern standards) unremarkable .45 Auto cartridge.
The cartridge is essentially created by shortening its father cartridge-- the infamous .50 Action Express, most popularly known for its use in the Desert Eagle pistol-- down to match its casing size with the under-appreciated 10mm Auto cartridge, resulting in the 12.7x25mm Auto possessing only a slightly longer over-all length than the .45 Auto, allowing it to fit nicely in any typical platform that has previously utilized the .45 Auto cartridge.
The goal of the 12.7x25mm Auto is to propel a two-hundred-fifty grain, point-five-oh caliber bullet at very high velocities, often unheard of in non-"magnum"-caliber handgun ammunition. On a typical load with maximum heat, the 12.7x25mm Auto is capable of reaching velocities of approximately one-thousand six-hundred feet-per-second out of a six inch barrel. The bullet punches a very large hole through soft targets, and can consistently penetrate typical body armor and still harm the target beneath with sufficience. It has proven to be an overall very effective cartridge, especially in comparison to .45 Auto, which it replaced.
The round was adopted by the Emergency Trauma Surgical Service (E.T.S.S.) sect of the Special Tactics and Rescue Squad (S.T.A.R.S.) division of the Bio-terrorism Security Assessment Alliance (B.S.A.A.) in the year 2012, for use in the Brugger and Thomet MP-45 Prototypes, which were adopted by the E.T.S.S. in late 2010.