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Cartridge comparison

.270 WSM vs 6.5x63mm Messner Magnum

.270 WSM and 6.5x63mm Messner Magnum are both in the reference; see the full spec comparison below.

ToolOverlay .270 WSM and 6.5x63mm Messner Magnum trajectories with real loads in Ballistic Compare

Side by side

.270 WSM6.5x63mm Messner Magnum
TypeRifleRifle
Introduced20022002
Bullet diameter0.2772″0.2642″
Case length2.1″2.4803″
Max pressure65,000 psi63,817 psi
Recoil14–18 ft·lb17.7–20 ft·lb
Effective range500 yd400 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.

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