.257 Roberts Reloading Data (Using Hornady Bullets) Load Data

307 published .257 Roberts Reloading Data (Using Hornady Bullets) reloading recipes across 18 powders and 1 bullet manufacturers, with bullet weights from 60 to 120 grains and recorded velocities between 2,142 and 3,679 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
307
Powders
18
Bullet makers
1
Bullet weights
60–120 gr

Sample .257 Roberts Reloading Data (Using Hornady Bullets) loads

The first 5 of 307 recipes.

BulletPowderChargeVelocityCOALPrimer
Hornady SP 100grAccurate AAC-435040.0 gr2591 fps——
Hornady SP 100grAccurate AAC-435041.6 gr2706 fps——
Hornady SP 100grAccurate AAC-435043.1 gr2820 fps——
Hornady SP 100grAccurate AAC-435044.6 gr2927 fps——
Hornady SP 100grAccurate AAC-435038.5 gr2493 fps——

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