Lindcott Armory Compare / .243 Winchester vs 6mm-284
Cartridge comparison
.243 Winchester vs 6mm-284
.243 Winchester is faster (3,850 vs 3,500 fps); 6mm-284 carries more energy (3,100 vs 2,000 ft·lb); 6mm-284 recoils less.
.243 Winchester →Representative trajectory · 100 yd zero0–1000 yd Open in Ballistic Compare ↗
6mm-284 →Representative trajectory · 100 yd zero0–1000 yd Open in Ballistic Compare ↗
| .243 Winchester | 6mm-284 | |
|---|---|---|
| Type | Rifle | Rifle |
| Introduced | 1955 | 1960 |
| Bullet ⌀ | 0.243″ | 0.243″ |
| Case length | 2.045″ | 2.17″ |
| Velocity | 2,900–3,850 fps | 3,200–3,500 fps |
| Energy | 1,400–2,000 ft·lb | 2,500–3,100 ft·lb |
| Max pressure | 60,000 psi | 62,000 psi |
| Recoil | 8–12 ft·lb | 5–8 ft·lb |
| Eff. range | 500 yd | 800 yd |
FAQs
- Is .243 Winchester faster than 6mm-284?
- .243 Winchester is faster — up to 3,850 fps versus 3,500 fps.
- Does .243 Winchester hit harder than 6mm-284?
- 6mm-284 carries more muzzle energy (3,100 vs 2,000 ft·lb).