.22 TCM

August 2024 Bottle-necked handgun cartridge 22TCM TCM FN Rem.jpg From left: .22 TCM, FN 5.7×28mm, .223 Remington 200px Pistol/Rifle Fred Craig 0 5.56×45mm NATO Rimless, bottleneck 0.224 in (5.70 mm) 0.255 in (6.48 mm) 0.362 in (9.19 mm) 0.376 in (9.55 mm) 0.378 in (9.60 mm) 0.045 1.022 in 1.265 in 15.2 gr H2O no grain 40 Pointed flat nose 853 943 40 Pointed flat nose 631 516 22.75" rifle (higher velocity) and 5.0" pistol (lower velocity) The .22 TCM (5.56x26mm, Tuason, Craig, Micromagnum) is a proprietary bottlenecked rimless cartridge derived from a 5.56×45mm NATO (.223 Remington) parent case. It was developed by custom gunsmith Fred Craig in collaboration with Martin Tuason, the President of Rock Island Armory (RIA) and Armscor. The cartridge is primarily used in Rock Island Armory M1911 pistols and the M22 TCM bolt-action rifle. Initially known as the .22 Micro-Mag, the .22 TCM is conceptually similar to other bottlenecked pistol cartridges, such as the 7.62×25mm Tokarev and the FN 5.7×28mm. The design prioritizes high velocity and reduced recoil by trading bullet mass for speed, making it suitable for variousApril 2025 applications.https://www.shootingillustrated.com/articles/2016/2/1/22-tcm/ An Official Journal of the NRA | .22 TCMTuason Carlos "Caloy" Armscor 22TCM https://www.youtube.com/watch?v=iuEyQWIdIqQ YouTube 19 March 2019 413 Media Group (Mar 20, 2019)Harrell Paul 22tcm vs 5.7x28 vs 7.62x25 https://www.youtube.com/watch?v=vLCsQkEL9eQ YouTube 3 January 2019 October 2024 cites a youtube video instead of an article Design and features January 2025 The .22 TCM is based on the 5.56×45mm NATO case shortened to 5.56x26mm. The overall cartridge length matches .38 Super for 1911 magazine use. This design results in a cartridge approximately 3mm longer than a standard 9×19mm round. The .22 TCM was specifically engineered for the Rock Island Armory (RIA) M1911 line of pistols, which also supports 9mm barrel swaps. The RIA M1911 A2 pistols use double-stack magazines. The .22 TCM uses Para-Ordnance P18 pattern magazines, designed for 9mm/.38 Super cartridges, and feature a double-column configuration with a 17-round capacity. They use an 8lb recoil spring. They are very easy to rack and suffer low recoil in a metal frame 1911.Tarr James Rock Island Armory 9mm/.22 TCM Combo 1911 Review Firearms News 10 September 2020 https://www.firearmsnews.com/editorial/rockisland-tcm-combo-1911/384240 en thumb|22TCM (left) with 40gr long bullet; 22TCM-9R (right) with 39gr short bullet .22 TCM-9R (Glock conversions) Limited production runs of Glock 19 and Glock 17 conversion barrel kits allowed these pistols to be converted to fire .22 TCM by replacing the barrel and using an 11 lb recoil spring. Complete upper conversion kits, including the slide, were also available. This led to the development of the .22 TCM-9R variant, which uses a shorter bullet and overall length compatible with Glock and other magazines designed for standard 9mm ammunition.Tuason Martin NASGW 2015 Sneak Peek - Rock Island Glock Conversion Kit 22 TCM 9mm https://www.youtube.com/watch?v=yqBws81UmYM YouTube Davidsons Gallery of Guns Nov 6, 2015 CEO of RIA Armscor 5 November 2015Tuason Carlos Armscor 22 TCM Glock Conversion Unit - NRAAM 2015 https://www.youtube.com/watch?v=5UffbslKmS0 YouTube Firearms Radio Network Apr 17, 2015 Senior Sales Manager RIA Armscor 16 April 2015@tntshootingacademy TNT Shooting Academy TNT testing the RIA 22 TCM 9R Glock conversion kit on Gen 2-3-4 frames https://www.youtube.com/watch?v=sEGz6v1ZV4Q YouTube Jan 7, 2022 6 January 2022 2025 5, conversion kits for Glock 17 remain available.Glock 17 22TCM9R Barrel and Recoil Spring Conversion kit https://advancedtactical.com/glock-17-22tcm9r-gen-3-barrel-and-recoil-spring-conversion-kit/ Advanced Tactical May 22, 2025 en .22 TCM-9R ammunition can be fired from standard .22 TCM firearms. The only difference is the shorter bullet and overall cartridge length, which means that magazines designed for .22 TCM-9R firearms may not accommodate all standard .22 TCM ammunition. Dimensions 500px|center|22 TCM case details Ammunition Factory ammunition Standard factory loads for the .22 TCM include a 40-grain jacketed hollow point (JHP), referred to as the "long slug," and a 39-grain JHP, known as the "9R" or "short slug." Both cartridges use the same .22 TCM case but differ in projectile length. This distinction has occasionally caused confusion among users and ammunition retailers, with some mistakenly identifying the variants as separate calibers. Despite differences in projectile design, both the 40-grain and 39-grain versions can be used interchangeably in .22 TCM firearms, provided they fit within the magazine dimensions of the specific pistol or rifle being used. + 22TCM Factory Ammo Performance Brand, Bullet, Weight, Type Velocity FPS Velocity FPS Group Size Inches Group Size Inches Armscor 40gr HP, older ammo 1,982 2,011 1.75" 1.625" Armscor 40gr HP, newer ammo 2,044 2,061 0.875" 1.375" Handloading Handloaders have refined the performance of the .22 TCM by experimenting with different powders and projectiles to enhance accuracy and reliability. Renowned firearms author John Taffin has published handloading data for the .22 TCM in GUNS Magazine on two occasions: in 2017, focusing on powder loads, and in 2023, addressing the use of various projectiles. Using Rock Island Armory M1911 pistols with 5-inch barrels, Taffin conducted tests at 20 yards with four-shot groups. The best results were achieved with Hodgdon "Lil' Gun" powder (10.5 grains) and Alliant "2400" powder (9.3 grains), both of which are fast-burning pistol powders designed for magnum and high-velocity applications. These powders significantly improved the cartridge's reliability and accuracy. + 22TCM Handloaded Ammo Performance Brand, Bullet, Weight, Type Powder Brand Charge Grains Weight Velocity FPS Group Size Inches Armscor 40gr HP Hodgdon Lil' Gun 10.5 2,074 1.125" Armscor 40gr HP Alliant 2400 9.3 1,942 0.75" The Speer .224" 40-grain Soft Point (SP) projectile was identified as particularly well-suited for the .22 TCM. This combination of optimized powders and projectiles enhanced the cartridge's performance, making it more consistent in both velocity and accuracy.Taffin John Speed Demon: Reloading 22TCM. Guns June 1, 2017 https://www.thefreelibrary.com/Speed+demon%3A+reloading+the+potent+little+.22+TCM.-a0503466711Taffin John A Pair With A Kicker, 22TCM Pistol and Rifle Review Guns August 2016 https://gunsmagazine.com/guns/handguns/a-pair-with-a-kicker/ Dies and unprimed cases for the .22 TCM are available from Hornady as of 2015–2016.Cepeda Fausto Reloading the 22TCM https://www.youtube.com/watch?v=Uhj3wUc_ZkM YouTube 3 January 2015 Simpson Layne .22 TCM Cartridge Review https://www.rifleshootermag.com/editorial/review-the-22-tcm-cartridge/83389 RifleShooter May 13, 2016 Performance and observations The .22 TCM cartridge features a bottleneck design, which can result in the case "sticking" as it fire-forms to the chamber. This issue can be mitigated by lightly oiling the chamber. Armscor's bulk factory ammunition has been noted to leave unburned powder residue inside the pistol's internals, potentially affecting reliability and producing significant muzzle flash. The original 40-grain factory-loaded bullet offers a flat trajectory, low recoil, and moderate accuracy in pistols. However, inconsistent accuracy—such as occasional flyers and group stringing—has been reported. Additionally, the cartridge's ballistic performance and overall length have been critiqued as suboptimal for certain applications.@BAdventures B Adventures Armscor RIA 22TCM & 9mm 1911, Manila Philippines https://www.youtube.com/watch?v=06xUTfSuh2E&t=1253s YouTube 16 April 2017 Miller Brad Review: RIA .22 TCM Conversion Kits Shooting Times April 25, 2016 https://www.shootingtimes.com/editorial/review-ria-22-tcm-conversion-kits/99564Cabunoc Harold WARAK ANG PAKWAN SA ARMSCOR CAL 22 TCM RIFLE https://www.youtube.com/watch?v=Ohfz8PM8Poo&t=122s YouTube Jan 16, 2022 15 January 2022 Variants 5.56×24mm Rowell Randall Scott-Key introduced an improved variant of the .22 TCM cartridge, designated as the 5.56×24mm. This modification involved slightly lowering the case shoulder and neck, allowing for the use of a wider range of .224" projectiles. The design enhances reliability by functioning as a reverse piston during the firing process, improving feeding and ejection. The 5.56×24mm variant is compatible with standard 9mm Glock magazines, further improving its practicality for use in popular firearms. Notably, this variant is fully backwards compatible, capable of being fired from any .22 TCM or .22 TCM-9R chamber. Scott-Key highlighted the Speer .224" 40-grain Soft Point (SP) projectile as an excellent option for the cartridge, offering reliable performance across various applications.Scott-Key Randall Forming cases for the 5.56x24 Rowell https://www.youtube.com/watch?v=eYvCvHMBP-U YouTube 30 October 2019 Scott-Key Randall 5.56x24 Basic Overview https://www.youtube.com/watch?v=j8pwGVYAtBg&t=1s YouTube 31 October 2019 Scott-Key Randall NEW 5.56 x 24! https://www.glocktalk.com/threads/new-5-56-x-24.1739010/?nested_view=1&sortby=oldest Glock Talk Dec 16, 2018October 2024 User generated and debatably original research Compatible firearms RIA M1911 A1 with conversion kit (.22 TCM, 10-round magazine) RIA M1911 A2 with conversion kit (.22 TCM, 17-round magazine) Glock 17/22 and Glock 19/23 with RIA conversion kit (.22 TCM-9R); 17/22 and 19/23 kits both discontinued, but 17-only kit still available Armscor MAPP series (.22 TCM-9R; CZ-75-derived, 16-round magazine),Fitzpatrick Brad Review: Rock Island MAPP TCM9R https://www.gunsandammo.com/editorial/review-rock-island-mapp-tcm9r/356952 Guns and Ammo en 6 February 2019 discontinued Armscor "Rock" and "Tac" series (.22 TCM-9R; M1911-derived, 8–10-round magazine)22TCM9R Rock Island Armory Armscor International, Inc https://www.armscor.com/22tcm9r www.armscor.com en Armscor "Tac" series (.22 TCM; M1911-derived, 17-round magazine)22TCM Armscor International, Inc. Armscor International, Inc https://www.armscor.com/22tcm www.armscor.com en Armscor M22 bolt-action rifles (.22 TCM, 5-round magazine) KAK Industry AR-15 Upper (blowback) The AR Guy AR-15 Upper (direct impingement)https://thearguy.com/products-page/complete-upper/22-tcm-16-carbine-di-upper-ready-to-go 22 TCM 16" Carbine DI upper The AR Guy Characteristics and applications The .22 TCM is a cartridge featuring an .22 caliber projectile seated into a necked down 9x19mm casing. Featuring low recoil compared to the 9×19mm makes it suitable for training new shooters or for individuals sensitive to recoil. Weighing less and delivering higher velocities than the 9mm, the .22 TCM is also compared to calibers like the 7.62×25mm Tokarev and FN 5.7×28mm. These characteristics make it viable for lightweight and compact personal defense weapons (PDWs), such as AR-15-style pistols, akin to those conceptualized in the Colt MARS Program.Armscor launches RIA Defense rifles, pistols for military, law enforcement markets InsiderPH September 19, 2024 https://insiderph.com/armscor-launches-ria-defense-rifles-pistols-for-military-law-enforcement-markets@TheBlackTrapper The Black Trapper .22 TCM Redux : Tim The AR Guy DI barrel https://www.youtube.com/watch?v=AmtzRdQA524 YouTube Feb 25, 2025 24 February 2025@TheBlackTrapper The Black Trapper Tim The AR Guy 12" 22 TCM DI PT 2 https://www.youtube.com/watch?v=I7b4F6eKmzs YouTube Mar 19, 2025 18 March 2025 A notable advantage of the .22 TCM is its cost efficiency, with ammunition prices often being significantly lower than FN 5.7×28mm rounds in the U.S. and other regions.March 2025 In countries with restrictions on military calibers or bore sizes for civilian ownership, the .22 TCM has been considered a potential alternative to commonly prohibited calibers like 9mm, .45 ACP, 5.56×45mm NATO, and 7.62×51mm NATO. Hunting Applications The .22 TCM's parent case is derived from the .223 Remington / 5.56×45mm NATO, which are open-source designs. The cartridge has been used successfully in both pistols and bolt-action rifles for hunting varmints, such as coyotes and feral swine.Need evidence of this claim October 2024@PCC_AR_Builder 500tsm 22 TCM 9R DI AR15 https://www.youtube.com/watch?v=C8QDeO9zFBw YouTube 10 June 2018 @LegallyArmedAmerica Legally Armed America 22 TCM rifle drops hog in its tracks on night vision https://www.youtube.com/watch?v=-YUoQ-ab2GQ YouTube 10 November 2014 November 10, 2014 @kak_industry KAK Industry KAK Industry 22 TCM AR15 Barrels and Uppers https://www.youtube.com/watch?v=XOcSeCyBee4 YouTube 7 June 2024 June 8, 2024@BuckeyeBallistics Justin RIA Rock Island M22 22TCM Review & Shoot (Close and Long Range) https://www.youtube.com/watch?v=6FwLWLnPUXY YouTube July 22, 2024 See also .22 Spitfire .221 Remington Fireball, a similar necked .22 centerfire round 5.56×21mm PINDAD, cut down 5.56×45mm .224 Boz 5mm RRM (5.2x26mm) 7.62×25mm Tokarev 7.63×25mm Mauser 7.65×21mm Parabellum 7.65×25mm Borchardt FN 5.7×28mm References External links Category:Pistol and rifle cartridges Category:Paramilitary cartridges