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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 load. 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 0.358 250 gr InterLock RN
Powder
Hodgdon H4895
Charge
46.4 gr
Barrel
18.5 in

Muzzle velocity

2,118 fps

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

36,573 – 43,770 – 51,545 psi

nominal is 70% MAP (62,366 psi)

The simulator isn't optimized for this cartridge yet: there isn't enough published pressure data to check it.

Illustrative example — every figure is an estimate; always confirm your load against a current published manual before loading.

Popular 350 Remington Magnum powders

Powders and bullets handloaders commonly use for the 350 Remington Magnum, drawn from public discussion and listed most common first. They appear as the Popular group in the calculator's pickers. This is not a load recommendation — always check your load against a current published manual.

Popular 350 Remington Magnum bullets

Use MyLoads as a 350 Remington Magnum velocity and pressure calculator: it estimates muzzle velocity, muzzle energy and the full chamber-pressure curve for your own powder, charge and barrel length, compared against the reference facts above.

Open the 350 Remington Magnum in the MyLoads calculator →

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