I just started reading about 10mm...
Introduced in 1983 in the ill fated Bren Ten autoloading pistol, the 10mm Auto has quickly become one of the most successful cartridges developed during this century. The idea originated with Whit Collins, who assisted in the project by John Adams, Irving Stone, and Jeff Cooper, but the credit for keeping this .40 caliber cartridge alive during its youth has to go to Colt for giving it a permanent home in the excellent Delta Elite version of its famous 1911 Government Model pistol.
Jacketed bullets of .400 inch diameter in various weights are available from the major bullet makers. Superbly accurate cast bullets in .401 inch diameter are available from Bull-X (Farmer City, Illinois) and Competition Specialties (Osceola, Iowa).
During 1990, the 10mm Auto gained even more credibility as a self defense cartridge when the FBI abandoned the 9mm Parabellum and officially adopted the larger caliber. Other law enforcement agencies are sure to follow suit. In addition to being an excellent self defense cartridge, the 10mm is powerful enough for use on deer size game at close to medium ranges. This especially holds true when it is loaded to maximum velocities with the heavier bullets and fired in a custom barrel from Bar-Sto, Wilson, or Centaur Systems. When the 150 and 155 grain bullets are down loaded to 1200 fps, the 10mm becomes an excellent cartridge for USPSA/IPSC competition with about the same level of recoil as that of the .38 Super. Recent tests with a Colt Delta Elite fitted with a Centaur barrel and compensator produced consistent accuracy of less than four inches at 50 yards.
Source: Hodgdon Data Manual, 26th Edition
The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing.”-Albert Einstein
6 years 47 weeks ago, 8:37 PM