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33 Nosler Load Data & Ballistics Calculator

Estimate chamber pressure and muzzle velocity for the 33 Nosler 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.

33 Nosler reference

Maximum average pressure (MAP)65,000 psi
Nominal case capacity105.0 gr H₂O
Groove / bullet diameter0.338 in (8.59 mm)

Example simulation illustrative

Bullet
Nosler AccuBond 338 Cal 300 gr Spitzer
Powder
Winchester StaBALL HD
Charge
74.5 gr
Barrel
24 in

Muzzle velocity

2,342 fps

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

34,768 – 47,199 – 61,665 psi

nominal is 73% 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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