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Tuason Craig Micromag named for Martin Tuason, (Armscor president), Fred Craig (developer)
TCM stands for Tuason Craig Micro-Mag. The . 22 TCM cartridge might sound a bit like it's a weird . 22 rimfire round, but it is not. It's a centerfire cartridge that's loaded with a 40-grain .
Tuason Craig Micromag named for Martin Tuason, (Armscor president), Fred Craig (developer) the 22TCM was made to fit in 38 super firearms as the length was to long for 9mm mags there is a 22TCM9r that is shorter and allowed armscor to make conversion kits to fit 9mm guns a 22 TCM gun can shoot both a 22TCM 9r can only shoot the 9r ammo
