Cartridge comparison
.46 Short Rimfire vs .56-46 Spencer
.46 Short Rimfire and .56-46 Spencer are both in the reference; see the full spec comparison below.
Side by side
| .46 Short Rimfire | .56-46 Spencer | |
|---|---|---|
| Type | Rimfire | Rimfire |
| Introduced | 1864 | 1866 |
| Bullet diameter | 0.456″ | 0.465″ |
| Case length | 0.8358″ | 1.0402″ |
| Max pressure | 12,000 psi | 14,000 psi |
| Recoil | 3.9–5.4 ft·lb | 14.4–14.7 ft·lb |
| Effective range | 50 yd | 200 yd |
| SAAMI | Not SAAMI standardized | Not SAAMI standardized |
| CIP | Not standardized | Not standardized |
| Obsolete | 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.
