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300 Savage Load Data & Ballistics Calculator

Estimate chamber pressure and muzzle velocity for the 300 Savage 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.

300 Savage reference

Maximum average pressure (MAP)47,000 psi
Nominal case capacity52.0 gr H₂O
Groove / bullet diameter0.308 in (7.82 mm)

Example simulation illustrative

Bullet
Hornady 0.308 150 gr GMX
Powder
IMR 3031
Charge
34.2 gr
Barrel
22 in

Muzzle velocity

2,305 fps

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

29,701 – 34,574 – 39,824 psi

nominal is 74% MAP (47,000 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 300 Savage powders

Powders and bullets handloaders commonly use for the 300 Savage, 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 300 Savage bullets

Use MyLoads as a 300 Savage 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 300 Savage in the MyLoads calculator →

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