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Added by Iceviper on 10 Jan 2014 11:06
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6
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Glock 29, Gen 3; 10mm Auto


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18 votes
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list by Iceviper
Published 5 years, 3 months ago 8 comments



My present primary sidearm, on and off duty. A bit snappy but it's built for big boys.

Some history follows, as I know the 10mm is not that popular:

Although it was selected for service by the Federal Bureau of Investigation in 1989 from the aftermath of the 1986 F.B.I. Miami Shootout, the cartridge was later decommissioned (except by the Hostage Rescue Team and Special Weapons and Tactics Teams) after their Firearms Training Unit eventually concluded that its recoil was excessive in terms of training for average agent/police officer competency of use and qualification,[10] and that the pistols chambered for the caliber were too large for some small-handed individuals. These issues led to the creation and following replacement to a shorter version of the 10mm that exists today as the .40 Smith & Wesson. The 10mm never attained the mainstream success of this compact variant, but there is still an enthusiastic group of supporters who often refer to the .40 S&W as the ".40 Short & Weak".[11]

At full potential, the 10mm Auto produces energy slightly higher than an average .357 Magnum load and below standard .41 Magnum rounds. The cartridge is considered to be high-velocity, giving it a less-curved flight path (also termed "flat-shooting") relative to other handgun cartridges. In its lighter loadings, the 10mm Auto is an exact duplicate of the .40 S&W cartridge. More powerful loadings can equal or exceed the performance of the .357 Magnum, and retain more kinetic energy at 100 yards than the .45 ACP has at the muzzle.[10]
Some commercial loadings are as follows:
.357 Magnum: 917 J (676 ft·lbf) for 11.7 g (180 gr) at 400 m/s (1,300 ft/s). Free recoil energy: 13.7 J (10.1 ft·lbf).[19]
10mm Auto: 1,020 J (750 ft·lbf) for 13.0 g (200 gr) at 400 m/s (1,300 ft/s). Free recoil energy: 16.4 J (12.1 ft·lbf).[20]
.41 Magnum: 1,272 J (938 ft·lbf) for 16.2 g (250 gr) at 400 m/s (1,300 ft/s). Free recoil energy: 31.0 J (22.9 ft·lbf).[21]
The loads listed above are from a boutique manufacturer of high performance ammunition and are about maximum for S.A.A.M.I. established pressure levels in each cartridge. Free recoil energy computed assuming a 1.1 kilograms (40 oz) handgun.
Most major ammunition manufacturers offer 10mm loads closer in performance to the "F.B.I. Load" than the full-power 10mm; these still contain sufficient power for defense applications, but their recoil is more comparable to that of the .45 ACP in similar guns. However, some companies do continue to offer the original full-power ammunition.


Source: Wikipedia

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