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Lindcott Armory

Cartridge comparison

.300 Winchester Magnum vs .338 Lapua Magnum

.300 Winchester Magnum and .338 Lapua Magnum are both in the reference; see the full spec comparison below.

Side by side

.300 Winchester Magnum.338 Lapua Magnum
TypeRifleRifle
Introduced19631989
Bullet diameter0.308″0.339″
Case length2.6201″2.7244″
Max pressure64,000 psi60,916 psi
Recoil25–38 ft·lb38–55 ft·lb
Effective range1200 yd1800 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 .300 Winchester Magnum and .338 Lapua Magnum trajectories with real loads in Ballistic Compare