Lindcott Armory Compare / .243 Winchester vs 6mm International
Cartridge comparison
.243 Winchester vs 6mm International
.243 Winchester and 6mm International are both catalogued in the reference — see the full spec comparison below.
.243 Winchester →Representative trajectory · 100 yd zero0–1000 yd Open in Ballistic Compare ↗
| .243 Winchester | 6mm International | |
|---|---|---|
| Type | Rifle | Wildcat |
| Introduced | 1955 | 1957 |
| Bullet ⌀ | 0.243″ | 0.243″ |
| Case length | 2.045″ | — |
| Velocity | 2,900–3,850 fps | — |
| Energy | 1,400–2,000 ft·lb | — |
| Max pressure | 60,000 psi | — |
| Recoil | 8–12 ft·lb | — |
| Eff. range | 500 yd | — |