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The .22 TCM or 22TCM (.22, Tuason, Craig, Micromagnum) is a proprietary bottle-necked rimless cartridge created from a 5.56mm NATO / 223 Rem parent case. It was developed by custom gunsmith Fred Craig and Martin Tuason, President of Rock Island Armory (RIA) Armscor, and is used in the RIA M1911 pistols and the M22 TCM bolt-action rifle.
Currently the info box shows 40 gr (3 g) Bullet weight, 2,800 ft/s (850 m/s) Velocity, 392 ft·lbf (531 J) Energy Using my energy calculator, 40gr bullet at 2800 fps velocity gives 696 ft-lbs energy, not 392 ft/lbs. Working backwards, 40gr bullet with 392 ft-lbs energy would need about 2100 fps velocity.
Armscor introduced a new proprietary caliber named the .22 TCM (Tuason Craig Micromag) based on the 1911 pistol. The cartridge is essentially a 5.56×45mm NATO cartridge shortened to 1.265 in. total length with a 40-grain jacketed hollow point bullet. Its main characteristics are its high velocity and low recoil, allowing for repeated accurate ...
The 7 mm version first appeared around 1980, with the .25 caliber appearing in 1987. The larger calibers provide more downrange energy, and resist wind deflection better than the original .22 caliber (5.56mm) bullet, and the moderate case capacity of the .223 Remington works well in the short pistol barrels. [1]
Developed jointly by Remington and Smith & Wesson, it was to be used in the Model 53 revolver, which first appeared late in 1961. [3] While it traced its origins to potent wildcats such as the .224 Harvey Kay-Chuk, [4] which ultimately derive from the .22 Hornet, [4] it was a bottlenecked cartridge based upon the .357 Magnum case necked down to a .22 caliber bullet, with an unusually long ...
.22 Savage Hi-Power (5.6×52mmR), a cartridge introduced by Savage in 1912 for use in the Savage Model 99 rifle.22 TCM (22 Micro-Mag), a shortened .223 Remington case designed to load into standard 9mm pistol magazines.22 Winchester Centerfire (WCF), a cartridge introduced in 1885 for use in a Winchester single-shot rifle
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The 22 TCM takes advantage of this same concept in its sub-variant, ... .22 TCM.22 Spitfire; HK 4.6×30mm; 5.7×28mm; Table of handgun and rifle cartridges; References