Cartridge comparison
.303 British vs .577/450 Martini-Henry
.303 British and .577/450 Martini-Henry are both in the reference; see the full spec comparison below.
Side by side
| .303 British | .577/450 Martini-Henry | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1889 | 1871 |
| Bullet diameter | 0.3118″ | 0.465″ |
| Case length | 2.222″ | 2.326″ |
| Max pressure | 49,000 psi | 18,000 psi |
| Recoil | 16–22 ft·lb | 25–38 ft·lb |
| Effective range | 600 yd | 400 yd |
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.