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350 Remington Magnum Load Data & Ballistics Calculator

Estimate chamber pressure and muzzle velocity for the 350 Remington Magnum with the free, in-browser MyLoads internal-ballistics simulator. The figures below are illustrative estimates from a physics model — not a recommended recipe. Always cross-check a current published loading manual.

350 Remington Magnum reference

Maximum average pressure (MAP)4,300 BAR
Nominal case capacity73.7 gr H₂O
Groove / bullet diameter0.357 in (9.07 mm)

Example simulation illustrative

Bullet
Hornady 0.358 180 gr InterLock SP-SSP
Powder
IMR 3031
Charge
48.3 gr
Barrel
18.5 in

Muzzle velocity

2,385 fps

Peak chamber pressure (interval, ±10% burn-rate)

32,286 – 38,988 – 46,477 psi

nominal is 63% of the 62,366 psi maximum average pressure

Illustrative example — every figure here is an estimate and can be wrong. Always consult a current published loading manual, and never trust these numbers on their own.

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