.300 Remington Ultra Magnum in a 26-inch Barrel Load Data

56 published .300 Remington Ultra Magnum in a 26-inch Barrel reloading recipes across 14 powders and 6 bullet manufacturers, with bullet weights from 150 to 200 grains and recorded velocities between 2,860 and 3,644 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
56
Powders
14
Bullet makers
6
Bullet weights
150–200 gr

Sample .300 Remington Ultra Magnum in a 26-inch Barrel loads

The first 5 of 56 recipes.

BulletPowderChargeVelocityCOALPrimer
Hornady InterBond 150grHodgdon Retumbo104.0 gr3,561 fps——
Hornady InterBond 150grHodgdon Retumbo106.0 gr3,644 fps——
Speer Speer 150grAlliant RL-2294.0 gr3,381 fps——
Hornady InterBond 150grAlliant RL-2598.0 gr3,465 fps——
Hornady InterBond 150grAlliant RL-25100.0 gr3,546 fps——

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