.378 Weatherby Magnum (Lee Precision Data) Load Data

46 published .378 Weatherby Magnum (Lee Precision Data) reloading recipes across 10 powders and 2 bullet manufacturers, with bullet weights from 235 to 300 grains and recorded velocities between 2,336 and 3,224 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
46
Powders
10
Bullet makers
2
Bullet weights
235–300 gr

Sample .378 Weatherby Magnum (Lee Precision Data) loads

The first 5 of 46 recipes.

BulletPowderChargeVelocityCOALPrimer
Jacketed 235grHodgdon H-4350109.0 gr3224 fps3.645
Jacketed 235grHodgdon H-4350102.0 gr3003 fps3.645
Jacketed 235grHodgdon H-4831107.0 gr2972 fps3.645
Jacketed 235grHodgdon H-4831117.0 gr3202 fps3.645
Barnes X 250grAccurate AAC-3100101.7 gr2711 fps3.665

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