Skip to content
Lindcott Armory

Cartridge comparison

.30 Newton vs .300 Winchester Magnum

.30 Newton and .300 Winchester Magnum are both in the reference; see the full spec comparison below.

Side by side

.30 Newton.300 Winchester Magnum
TypeRifleRifle
Introduced19131963
Bullet diameter0.308″0.308″
Case length2.5201″2.6201″
Max pressure64,000 psi
Recoil25–38 ft·lb
Effective range300 yd1200 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 Newton and .300 Winchester Magnum trajectories with real loads in Ballistic Compare