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Data last updated on 2021-04-22 @ 07:06:12am (EST)

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.22 TCM Ammo

22 TCM Ammo For Sale - Top Ammo Retailers Available

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.

The .22 TCM is somewhat longer than the ubiquitous 9×19mm Parabellum and designed to be fired from an RIA line of weapons (which also included 9mm barrel swaps) fed by Para-Ordnance-style double-column .38 Super magazines. More on Wiki

About .22 TCM

  • Type: Pistol/Rifle
  • Designer: Fred Craig


  • Parent case: 5.56×45mm NATO
  • Case type: Rimless bottleneck
  • Bullet diameter: .224 or 5.56mm
  • Base diameter: 0.376 in (9.6 mm)
  • Rim diameter: 0.378 in (9.6 mm)
  • Rim thickness:; 0.045 in (1.1 mm)
  • Case length: 1.022 in (26.0 mm)
  • Overall length: 1.265 in (32.1 mm)
  • Case capacity: 15.2 gr H20

Ballistic performance

Bullet mass/type Velocity Energy
40 gr (3 g) Pointed flat nose 2,800 ft/s (850 m/s) 696 ft⋅lbf (944 J)
40 gr (3 g) Pointed flat nose 2,070 ft/s (630 m/s) 381 ft⋅lbf (517 J)

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Latest products for .22 tcm

  • Ammo Supply Warehouse Armscor Precision 22 TCM 40 gr. JHP 100 rnd VALUE PACK for $59.99







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40 Gr



100 Rds
$0.60 CPR

Updated: 13m ago

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