8mm Mauser / 8x57mm Mauser / 8x57mm JS Mauser (IMR Data - Maximum Loads) Load Data

16 published 8mm Mauser / 8x57mm Mauser / 8x57mm JS Mauser (IMR Data - Maximum Loads) reloading recipes across 8 powders and 2 bullet manufacturers, with bullet weights from 150 to 170 grains and recorded velocities between 1,855 and 2,335 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
16
Powders
8
Bullet makers
2
Bullet weights
150–170 gr

Sample 8mm Mauser / 8x57mm Mauser / 8x57mm JS Mauser (IMR Data - Maximum Loads) loads

The first 5 of 16 recipes.

BulletPowderChargeVelocityCOALPrimer
Speer SP 150grIMR IMR-303134.5 gr2,335 fps——
Speer SP 150grIMR IMR-406436.0 gr2,305 fps——
Speer SP 150grIMR IMR-419828.5 gr2,225 fps——
Speer SP 150grIMR IMR-432036.0 gr2,270 fps——
Speer SP 150grIMR IMR-435043.0 gr2,315 fps——

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