Description
- The .22TCM Is A Proprietary Bottle-Necked Cartridge Created From The 5.56 NATO Cartridge, Developed By Custom Gunsmith Fred Craig And Rock Island Armory For Semi-Automatic Pistols And The Rock Island M22 TCM Bolt-Action Rifle. Similar Conceptually To Other Bottle-Necked Pistol Cartridges Such As The Larger-Caliber .357Sig, The .22TCM Trades Bullet Mass For Increased Velocity And Lowered Recoil. Based On The 5.56X45mm Nato Case And Shortened So That The Shoulder Is At Approximately The Same Length As A .38 Super Cartridge.