.458 Winchester Magnum (Swift Data) Load Data

34 published .458 Winchester Magnum (Swift Data) reloading recipes across 7 powders and 1 bullet manufacturers, with bullet weights from 400 to 500 grains and recorded velocities between 1,910 and 2,410 fps. Every load lists charge weight, velocity, COAL, primer and case where the source published it.

Always begin at the minimum charge weight and work up gradually. Never exceed maximum loads. Verify all data against a current published reloading manual before use. LoadDevelopment.com is not responsible for errors or omissions in this data.
Recipes
34
Powders
7
Bullet makers
1
Bullet weights
400–500 gr

Sample .458 Winchester Magnum (Swift Data) loads

The first 5 of 34 recipes.

BulletPowderChargeVelocityCOALPrimer
Swift A-Frame F/N 400grHodgdon H-32273.0 gr2371 fps——
Swift A-Frame F/N 400grHodgdon H-32267.9 gr2267 fps——
Swift A-Frame F/N 400grHodgdon H-489573.5 gr2244 fps——
Swift A-Frame F/N 400grHodgdon H-489579.0 gr2392 fps——
Swift A-Frame F/N 400grIMR IMR-303170.7 gr2206 fps——

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