.300 Remington Ultra Magnum in a Sisk Rifle Load Data

12 published .300 Remington Ultra Magnum in a Sisk Rifle reloading recipes across 11 powders and 8 bullet manufacturers, with bullet weights from 150 to 220 grains and recorded velocities between 3,006 and 3,551 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
11
Bullet makers
8
Bullet weights
150–220 gr

Sample .300 Remington Ultra Magnum in a Sisk Rifle loads

The first 5 of 12 recipes.

BulletPowderChargeVelocityCOALPrimer
RWS Cone Point 150grAlliant RL-1992.0 gr3,524 fps——
Barnes X-Bullet 165grHodgdon H-435085.0 gr3,400 fps——
Speer Speer 165grHodgdon H-45089.0 gr3,411 fps——
Hornady Spire Point 165grAlliant RL-2294.0 gr3,551 fps——
Winchester Fail Safe 180grHodgdon H-100096.0 gr3,315 fps——

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