.224 Montgomery
| .224 Montgomery | |
|---|---|
| Type | Pistol |
| Place of origin | United States |
| Production history | |
| Designer | Tim Montgomery |
| Specifications | |
| Parent case | .25 ACP |
| Case type | Semi-rimmed |
| Bullet diameter | .224 in (5.7 mm) |
| Base diameter | .277 in (7.0 mm) |
| Rim diameter | .298 in (7.6 mm) |
| Case length | .62 in (16 mm) |
| Primer type | Boxer Small Pistol |
The .224 Montgomery is a wildcat centerfire cartridge designed by Tim Montgomery. The round is made by necking down a .25 ACP case to accept a .224 sized bullet.