Pistol · Not SAAMI standardized
.22 TCM
Filipino-developed necked-down 9mm cartridge that fires a .22-caliber bullet at nearly 2,000 fps from a 1911-style pistol.
- Caliber
- 0.224″ · 5.69 mm
- Introduced
- 2012
- Case
- Rimless
- Parent
- .223 Remington
- Primary use
- Self Defense, Target
- Status
- Active
- Introduced
- 2012
- Type
- Pistol
- Origin
- Philippines
- Inventor
- Fred Craig / Armscor
- Manufacturer
- Armscor / Rock Island Armory
- Standard
- Not SAAMI standardized
- Status
- Active
- Availability
- Limited
- Case capacity
- 15.2 gr H₂O
- Twist (typical)
- 1:12
- Primer
- Small Pistol
- Case type
- Rimless
- Max pressure
- 40,000 psi, SAAMI transducer
- Eff. range
- 75 yd
- Max range
- 2500 yd
- Recoil
- 1.8–3 ft·lb
- Subsonic
- Capable
Ballistics
Published velocity/energy data isn't available for .22 TCM. Parent case: .223 Remington.
Performance
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
SAAMI · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 5.69 | 0.224 | · |
| Neck ⌀ | 6.48 | 0.255 | · |
| Shoulder ⌀ | 9.20 | 0.362 | · |
| Shoulder angle | 23° | — | |
| Base ⌀ | 9.55 | 0.376 | · |
| Rim ⌀ | 9.60 | 0.378 | ~ |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.14 | 0.045 | ~ |
| Neck length | 5.87 | 0.231 | |
| Case length | 25.96 | 1.022 | · |
| Overall length | 32.13 | 1.265 | · |
Size vs familiar rounds
Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. .22 TCM is highlighted below.
Missing a dimension for .22 TCM? Some case measurements aren't in a published SAAMI/CIP drawing yet. Have a factory or reamer print? Send it → — verified hard-to-find data earns a free Lindcott sticker.
Factory loads
Being verified
Advertised FPS, energy, and BC are withheld until loads clear verification.
Reloading costestimate cost per round vs factory
Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.
Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.
Firearms chambered in .22 TCM
Lineage
History
Developed by Fred Craig and Armscor (Philippines) around 2010, introduced commercially in 2012. The .22 TCM uses a necked-down 9mm Luger case to fire a .22-caliber bullet at high velocity. The Rock Island Armory 1911 chambered for it includes a spare 9mm barrel, allowing the owner to switch between calibers with just a barrel swap. The TCM9R variant uses a shorter case and fires from standard 9mm magazines without modification. Gaining traction in the Philippines and among US 1911 enthusiasts.
FAQs
- What twist rate does .22 TCM use?
- .22 TCM typically uses a 1:12 twist rate.
- What bullet diameter is .22 TCM?
- .22 TCM uses a 0.224″ (5.69 mm) diameter bullet.
- Is .22 TCM still in production?
- .22 TCM is active; typical availability is limited.
- What is .22 TCM used for?
- .22 TCM is primarily used for self defense, target.
- What is .22 TCM based on?
- .22 TCM is derived from the .223 Remington case.
Sources & provenance
- Standard SAAMI — SAAMI cartridge & chamber drawing — .22 TCM archived
- Standard SAAMI — ANSI/SAAMI Z299 — Cartridge & Chamber Drawings archived
- Manufacturer Armscor International, Inc — Ammo | Armscor International, Inc — 22TCM vs 22TCM9R comparison · representative_gun, grain_ballistics archived
- Manufacturer Armscor / Rock Island Armory — TCM Bolt Action Rifle — User's Manual (Tech Specs ballistics table) · grain_ballistics, representative_gun archived
- Manufacturer Advanced Tactical (Armscor/Rock Island Armory subsidiary store) — ArmscorPrecision - 22TCM - 40gr - JHP - Nickel Plated Casing - 100rnd/Box Value Pack · representative_gun, grain_ballistics archived
- Manufacturer Advanced Tactical (Armscor/Rock Island Armory subsidiary store) — ArmscorUSA - 22TCM9R - 39gr - JHP - Nickel Plated Casing - 50rnd/Box · grain_ballistics, representative_gun archived
- Secondary Wikipedia — .22 TCM (case genealogy + 9R subsection) · parent_cartridge
- Secondary American Rifleman (NRA) — Tested: The .22 TCM Cartridge · parent_cartridge
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 17 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →
