.338 Winchester Magnum (IMR Data) Load Data

17 published .338 Winchester Magnum (IMR Data) reloading recipes across 8 powders and 3 bullet manufacturers, with bullet weights from 200 to 300 grains and recorded velocities between 1,795 and 3,030 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
17
Powders
8
Bullet makers
3
Bullet weights
200–300 gr

Sample .338 Winchester Magnum (IMR Data) loads

The first 5 of 17 recipes.

BulletPowderChargeVelocityCOALPrimer
Winchester PPT SP 200grIMR IMR-303161.0 gr2,860 fps——
Winchester PPT SP 200grIMR IMR-406464.0 gr2,920 fps——
Winchester PPT SP 200grIMR IMR-432063.0 gr2,875 fps——
Winchester PPT SP 200grIMR IMR-435073.0 gr3,030 fps——
Winchester PPT SP 200grIMR IMR-483176.0 gr3,020 fps——

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