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22 tcm
The .22 TCM or 22TCM (.22 Tuason Craig Micromagnum) is a proprietary bottle-necked cartridge created from a 5.56 NATO cartridge developed by custom gunsmith Fred Craig and Rock Island Armory (RIA) for semi-automatic pistols and the Rock Island M22 TCM bolt-action rifle. Before the cartridge was commercialized, it was called the 22 Micro-Mag. Similar conceptually to other bottle-necked pistol cartridges such as the larger-caliber .357 SIG, the .22 TCM trades bullet mass for increased velocity and lowered recoil.Based on the 5.56×45mm NATO case and shortened so that the shoulder is at approximately the same length as a .38 Super cartridge, the .22 TCM is somewhat longer than the ubiquitous 9×19mm Parabellum and designed to be fired from a RIA line of firearms (which also included 9mm barrel swaps) fed by Para-Ordnance-style double-column .38 Super magazines. A sub-variant, the 22 TCM 9R, with a shorter, more deeply-seated bullet, is designed for use in Glock magazines limited to standard-length 9mm cartridges. Standard factory loads are 40-grain jacketed soft hollow point, 39-grain for "9R".
I have Rock Island 19/2011 Full size, 5" bbl 20/17rds, in 22 Tcm / 9mm with 3 magazines in good shape with about 500 rounds through it.
2 of the magazines are aftermarket .40 magazines. They feed ok but are a bit clunky to load. One of the magazines has a ground down bottom plate.
Trade...
Seventeen boxes of Armscor 22 TCM ammo for sale in Yakima WA. All JHP 40 grain loads.
$25 per box.
Will consider trades for ammo, primers, powder
Shippable on your dime by UPS only so not cheap.
Hey, trying to get some holiday funds togeather so selling a couple guns. I have a Rock Island 9mm / 22 TCM (comes with 2 separate barrels). I’ve never shot it and bought it from Tigard pawn. Was a used gun and not brand new so It was just gone through before I bought it from Columbia...