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Lindcott Armory

Cartridge comparison

.30 Remington AR vs 6.8mm Remington SPC

.30 Remington AR and 6.8mm Remington SPC are both in the reference; see the full spec comparison below.

Side by side

.30 Remington AR6.8mm Remington SPC
TypeRifleRifle
Introduced20082004
Bullet diameter0.308″0.277″
Case length1.5299″1.6866″
Max pressure55,000 psi55,000 psi
Recoil9–13 ft·lb
Effective range300 yd500 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.

ToolOverlay .30 Remington AR and 6.8mm Remington SPC trajectories with real loads in Ballistic Compare