Cartridge comparison
.243 Winchester vs 6x45mm
.243 Winchester and 6x45mm are both in the reference; see the full spec comparison below.
Side by side
| .243 Winchester | 6x45mm | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1955 | 1965 |
| Bullet diameter | 0.243″ | 0.243″ |
| Case length | 2.0449″ | 1.7598″ |
| Max pressure | 60,000 psi | 52,000 psi |
| Recoil | 8–12 ft·lb | 5–8 ft·lb |
| Effective range | 400 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.