.375 Whelen Improved (20-inch barrel) Load Data

30 published .375 Whelen Improved (20-inch barrel) reloading recipes across 7 powders and 3 bullet manufacturers, with bullet weights from 220 to 300 grains and recorded velocities between 1,601 and 2,805 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
30
Powders
7
Bullet makers
3
Bullet weights
220–300 gr

Sample .375 Whelen Improved (20-inch barrel) loads

The first 5 of 30 recipes.

BulletPowderChargeVelocityCOALPrimer
Hornady FP 220grHodgdon H-32255.0 gr2,519 fps2.98—
Hornady FP 220grIMR IMR-419840.0 gr2,217 fps2.98—
Speer semi-spitzer 235grHodgdon BL-C(2)56.0 gr2,364 fps3.228—
Speer semi-spitzer 235grHodgdon H-33561.0 gr2,604 fps3.228—
Speer semi-spitzer 235grIMR IMR-432065.0 gr2,726 fps3.228—

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