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Lindcott Armory

Cartridge comparison

6.5-300 Weatherby Magnum vs 6.5mm Weatherby RPM

6.5-300 Weatherby Magnum and 6.5mm Weatherby RPM are both in the reference; see the full spec comparison below.

Side by side

6.5-300 Weatherby Magnum6.5mm Weatherby RPM
TypeRifleRifle
Introduced20162021
Bullet diameter0.264″0.264″
Case length2.8252″2.5701″
Max pressure65,000 psi65,000 psi
Recoil6–9 ft·lb6–9 ft·lb
Effective range800 yd600 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 6.5-300 Weatherby Magnum and 6.5mm Weatherby RPM trajectories with real loads in Ballistic Compare