.357 Magnum (in a Ruger GP100 / Handloader issue #299) Load Data

12 published .357 Magnum (in a Ruger GP100 / Handloader issue #299) reloading recipes across 12 powders and 1 bullet manufacturers, with bullet weights from 158 to 158 grains and recorded velocities between 1,014 and 1,298 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
12
Bullet makers
1
Bullet weights
158–158 gr

Sample .357 Magnum (in a Ruger GP100 / Handloader issue #299) loads

The first 5 of 12 recipes.

BulletPowderChargeVelocityCOALPrimer
Hornady XTP-HP 158grAlliant 240014.9 gr1276 fps——
Hornady XTP-HP 158grAccurate AAC-27.0 gr1082 fps——
Hornady XTP-HP 158grAccurate AAC-410014.8 gr1270 fps——
Hornady XTP-HP 158grAccurate AAC-59.8 gr1155 fps——
Hornady XTP-HP 158grAccurate AAC-710.5 gr1105 fps——

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