.300 H&H Magnum (26-inch barrels) Load Data

20 published .300 H&H Magnum (26-inch barrels) reloading recipes across 7 powders and 2 bullet manufacturers, with bullet weights from 150 to 250 grains and recorded velocities between 2,550 and 3,290 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
20
Powders
7
Bullet makers
2
Bullet weights
150–250 gr

Sample .300 H&H Magnum (26-inch barrels) loads

The first 5 of 20 recipes.

BulletPowderChargeVelocityCOALPrimer
150grHodgdon H-45072.0 gr3,110 fps——
150grIMR IMR-406460.0 gr3,130 fps——
150grIMR IMR-435070.0 gr3,290 fps——
150grIMR IMR-483172.0 gr3,280 fps——
Sierra MatchKing 168grIMR IMR-435069.0 gr3,090 fps——

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