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Cartridge comparison

11.5x51mm vs .450 Marlin

11.5x51mm and .450 Marlin are both in the reference; see the full spec comparison below.

ToolOverlay 11.5x51mm and .450 Marlin trajectories with real loads in Ballistic Compare

Side by side

11.5x51mm.450 Marlin
TypeRifleRifle
Introduced20092000
Bullet diameter0.4524″0.4583″
Case length2.0157″2.1″
Max pressure58,015 psi43,500 psi
Recoil19.5–27.2 ft·lb25–35 ft·lb
Effective range250 yd200 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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