.505 Gibbs Load Data

13 published .505 Gibbs reloading recipes across 5 powders and 2 bullet manufacturers, with bullet weights from 450 to 680 grains and recorded velocities between 1,350 and 2,350 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
13
Powders
5
Bullet makers
2
Bullet weights
450–680 gr

Sample .505 Gibbs loads

The first 5 of 13 recipes.

BulletPowderChargeVelocityCOALPrimer
Alaska Bullet Works .510-inch flatnose 450grIMR IMR-4831130.0 gr2,197 fps—CCI 250
Barnes .505-inch homogeneous solids 525grAccurate AAC-220090 gr2,113 fps—CCI 250
Barnes .505-inch homogeneous solids 525grIMR IMR-4064100.0 gr1,875 fps—CCI 250
Barnes .505-inch homogeneous solids 525grIMR IMR-406490 gr1,750 fps—CCI 250
Barnes .505-inch homogeneous solids 525grIMR IMR-4831130.0 gr2,180 fps—CCI 250

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