.30-378 Weatherby Magnum Load Data

43 published .30-378 Weatherby Magnum reloading recipes across 11 powders and 4 bullet manufacturers, with bullet weights from 150 to 250 grains and recorded velocities between 2,267 and 3,709 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
43
Powders
11
Bullet makers
4
Bullet weights
150–250 gr

Sample .30-378 Weatherby Magnum loads

The first 5 of 43 recipes.

BulletPowderChargeVelocityCOALPrimer
Nosler Partition 150grHodgdon H-5010123.0 gr3,709 fpsWinchester WLRM
Lapua Scenar / OTM Scenar-L 155grVihtavuori N16094.1–98.9 gr3294.0–3484 fps3.661Large Rifle Magnum
Lapua Scenar / OTM Scenar-L 155grVihtavuori N165103.1–107.1 gr3337.0–3527 fps3.661Large Rifle Magnum
Lapua Scenar / OTM Scenar-L 155grVihtavuori N170111.6–116.3 gr3307.0–3507 fps3.661Large Rifle Magnum
Nosler Partition 165grHodgdon H-5010118.0 gr3,624 fpsWinchester WLRM

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