Compare / .243 Winchester vs 6mm Remington

Cartridge comparison

.243 Winchester vs 6mm Remington

.243 Winchester is faster (3,850 vs 3,500 fps); 6mm Remington carries more energy (2,700 vs 2,000 ft·lb).

.243 Winchester →
Representative trajectory · 100 yd zero0–1000 yd
100 yd · zero0″−105″105″ drop @ 1000 yd05001000Open in Ballistic Compare ↗
6mm Remington →
Representative trajectory · 100 yd zero0–1000 yd
100 yd · zero0″−128″128″ drop @ 1000 yd05001000Open in Ballistic Compare ↗
.243 Winchester6mm Remington
TypeRifleRifle
Introduced19551955
Bullet ⌀0.243″0.243″
Case length2.045″2.233″
Velocity2,900–3,850 fps3,100–3,500 fps
Energy1,400–2,000 ft·lb2,200–2,700 ft·lb
Max pressure60,000 psi65,000 psi
Recoil8–12 ft·lb8–12 ft·lb
Eff. range500 yd600 yd

FAQs

Is .243 Winchester faster than 6mm Remington?
.243 Winchester is faster — up to 3,850 fps versus 3,500 fps.
Does .243 Winchester hit harder than 6mm Remington?
6mm Remington carries more muzzle energy (2,700 vs 2,000 ft·lb).