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416 Remington Magnum Load Data & Ballistics Calculator

Estimate chamber pressure and muzzle velocity for the 416 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.

416 Remington Magnum reference

Maximum average pressure (MAP)65,000 psi
Nominal case capacity108.0 gr H₂O
Groove / bullet diameter0.416 in (10.57 mm)

Example simulation illustrative

Bullet
Hornady 0.416 400 gr DGX
Powder
IMR 4064
Charge
76 gr
Barrel
24 in

Muzzle velocity

2,315 fps

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

40,469 – 49,291 – 59,206 psi

nominal is 76% of the 65,000 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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