500 CYRUS Load Data

12 published 500 CYRUS reloading recipes across 6 powders and 3 bullet manufacturers, with bullet weights from 325 to 450 grains and recorded velocities between 1,189 and 2,724 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
6
Bullet makers
3
Bullet weights
325–450 gr

Sample 500 CYRUS loads

The first 5 of 12 recipes.

BulletPowderChargeVelocityCOALPrimer
BAR XPB 325grHodgdon Benchmark86.0–92.0 gr2572.0–2720 fps2.895Federal 215M, Large Rifle Magnum Match
BAR XPB 325grHodgdon H32285.0–90.0 gr2607.0–2722 fps2.895Federal 215M, Large Rifle Magnum Match
BAR XPB 325grHodgdon H419875.0–80.0 gr2622.0–2724 fps2.895Federal 215M, Large Rifle Magnum Match
SIE JHP 350grHodgdon Benchmark87.0–93.0 gr2539.0–2653 fps2.655Federal 215M, Large Rifle Magnum Match
SIE JHP 350grHodgdon H32284.0–90.0 gr2535.0–2654 fps2.655Federal 215M, Large Rifle Magnum Match

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