30 published .257 Roberts Data reloading recipes across 9 powders and 3 bullet manufacturers, with bullet weights from 60 to 120 grains and recorded velocities between 2,768 and 3,994 fps. Every load lists charge weight, velocity, COAL, primer and case where the source published it.
The first 5 of 30 recipes.
| Bullet | Powder | Charge | Velocity | COAL | Primer |
|---|---|---|---|---|---|
| Nosler Nosler 100gr | Hodgdon H-4831 | 49.0 gr | 3,071 fps | — | — |
| Nosler Nosler 100gr | IMR IMR-4064 | 43.0 gr | 3,185 fps | — | — |
| Nosler Nosler 100gr | IMR IMR-4320 | 42.0 gr | 3,081 fps | — | — |
| Nosler Nosler 100gr | IMR IMR-4350 | 47.0 gr | 3,130 fps | — | — |
| Nosler Nosler 100gr | Norma N-203 | 41.5 gr | 3,142 fps | — | — |
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