.300 Remington Ultra Magnum (Hodgdon Retumbo Data) Load Data

12 published .300 Remington Ultra Magnum (Hodgdon Retumbo Data) reloading recipes across 1 powders and 6 bullet manufacturers, with bullet weights from 150 to 220 grains and recorded velocities between 2,800 and 3,531 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
12
Powders
1
Bullet makers
6
Bullet weights
150–220 gr

Sample .300 Remington Ultra Magnum (Hodgdon Retumbo Data) loads

The first 5 of 12 recipes.

BulletPowderChargeVelocityCOALPrimer
Sierra Soft Point Boat Tail 150grHodgdon Retumbo106.0 gr3,531 fps——
Sierra Soft Point Boat Tail 150grHodgdon Retumbo100.0 gr3,343 fps——
Swift SP 165grHodgdon Retumbo103.0 gr3,414 fps——
Swift SP 165grHodgdon Retumbo97.0 gr3,241 fps——
Speer Soft Point Boat Tail 180grHodgdon Retumbo100.5 gr3,300 fps——

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