.257 Roberts (Hodgdon Data - Winchester Powder) Load Data

14 published .257 Roberts (Hodgdon Data - Winchester Powder) reloading recipes across 2 powders and 5 bullet manufacturers, with bullet weights from 60 to 115 grains and recorded velocities between 2,574 and 3,818 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
14
Powders
2
Bullet makers
5
Bullet weights
60–115 gr

Sample .257 Roberts (Hodgdon Data - Winchester Powder) loads

The first 5 of 14 recipes.

BulletPowderChargeVelocityCOALPrimer
Speer SPBT 100grWinchester W-76045.0 gr3098 fps——
Speer SPBT 100grWinchester W-76044.0 gr2919 fps——
Nosler Part 115grWinchester W-76039.5 gr2574 fps——
Nosler Part 115grWinchester W-76043.0 gr2720 fps——
Hornady SP 60grWinchester W-76049.5 gr3566 fps——

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