Cartridge comparison
.45 GAP vs .455 Webley Automatic
.45 GAP and .455 Webley Automatic are both in the reference; see the full spec comparison below.
Side by side
| .45 GAP | .455 Webley Automatic | |
|---|---|---|
| Type | Pistol | Pistol |
| Introduced | 2003 | 1912 |
| Bullet diameter | 0.452″ | 0.455″ |
| Case length | 0.7551″ | 0.93″ |
| Max pressure | 23,000 psi | 25,000 psi |
| Recoil | 9.7–10.3 ft·lb | 8.4–9 ft·lb |
| Effective range | 50 yd | 50 yd |
| SAAMI | SAAMI standardized | Not SAAMI standardized |
| CIP | CIP standardized | Not standardized |
| Obsolete | — | Obsolete |
Highlighted cells hold the clear edge where both sides have a number. Every figure is a range maximum from the reference; typical loads run lower.
Case profiles, to scale
Drawn to the same scale, so the proportions are true. Physical size varies with your screen.
