.505 Gibbs (A-Square Data) Load Data

6 published .505 Gibbs (A-Square Data) reloading recipes across 3 powders and 1 bullet manufacturers, with bullet weights from 525 to 525 grains and recorded velocities between 2,238 and 2,415 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
6
Powders
3
Bullet makers
1
Bullet weights
525–525 gr

Sample .505 Gibbs (A-Square Data) loads

The first 5 of 6 recipes.

BulletPowderChargeVelocityCOALPrimer
A-Square Dead Tough 525grHodgdon H-4831132.0 gr2,257 fps——
A-Square Dead Tough 525grIMR IMR-7828140.0 gr2,238 fps——
A-Square Dead Tough 525grIMR IMR-7828142.0 gr2,378 fps——
A-Square Dead Tough 525grIMR IMR-7828144.0 gr2,415 fps——
A-Square Dead Tough 525grAlliant RL-22133.0 gr2,269 fps——

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