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45 S&W Schofield Load Data & Ballistics Calculator

Estimate chamber pressure and muzzle velocity for the 45 S&W Schofield 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.

45 S&W Schofield reference

Maximum average pressure (MAP)1,000 BAR
Nominal case capacity31.0 gr H₂O
Groove / bullet diameter0.450 in (11.43 mm)

Example simulation illustrative

Bullet
Hornady 0.452 230 gr LRN
Powder
IMR 800-X
Charge
3.5 gr
Barrel
4 in

Muzzle velocity

515 fps

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

8,704 – 9,355 – 10,018 psi

nominal is 65% of the 14,504 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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