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9.3x74R Load Data & Ballistics Calculator

Estimate chamber pressure and muzzle velocity for the 9.3x74R 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.

9.3x74R reference

Maximum average pressure (MAP)3,400 BAR
Nominal case capacity83.0 gr H₂O
Groove / bullet diameter0.365 in (9.28 mm)

Example simulation illustrative

Bullet
Nosler Partition 9.3mm 286 gr Spitzer (18.5 gram)
Powder
IMR 4350
Charge
61 gr
Barrel
24 in

Muzzle velocity

2,303 fps

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

35,405 – 46,048 – 58,585 psi

nominal is 93% of the 49,313 psi maximum average pressure

This sample load runs near the maximum average pressure for the 9.3x74R (about 93% of MAP at the nominal estimate; the upper interval can exceed it). It is shown only to illustrate the simulator — reduce the charge and work up from your manual's start load.

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

Use MyLoads as a 9.3x74R 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 9.3x74R in the MyLoads calculator →

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