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28 Nosler Load Data & Ballistics Calculator

Estimate chamber pressure and muzzle velocity for the 28 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.

28 Nosler reference

Maximum average pressure (MAP)65,000 psi
Nominal case capacity93.0 gr H₂O
Groove / bullet diameter0.284 in (7.21 mm)

Example simulation illustrative

Bullet
Nosler Partition 7mm 175 gr Spitzer
Powder
Ramshot LRT
Charge
78.9 gr
Barrel
24 in

Muzzle velocity

2,977 fps

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

44,440 – 62,900 – 85,410 psi

nominal is 97% of the 65,000 psi maximum average pressure

This sample load runs near the maximum average pressure for the 28 Nosler (about 97% 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 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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