16 published .458x2 in an XP-100 reloading recipes across 1 powders and 2 bullet manufacturers, with bullet weights from 400 to 500 grains and recorded velocities between 1,751 and 2,175 fps. Every load lists charge weight, velocity, COAL, primer and case where the source published it.
The first 5 of 16 recipes.
| Bullet | Powder | Charge | Velocity | COAL | Primer |
|---|---|---|---|---|---|
| Barnes semi-spitzer 400gr | IMR IMR-4198 | 46 gr | 1,960 fps | 2.75 | Winchester Large Rifle |
| Speer Speer 400gr | IMR IMR-4198 | 48 gr | 1,910 fps | 2.70 | Winchester Large Rifle |
| Barnes semi-spitzer 400gr | IMR IMR-4198 | 48 gr | 1,954 fps | 2.75 | Winchester Large Rifle |
| Speer Speer 400gr | IMR IMR-4198 | 50 gr | 1,955 fps | 2.70 | Winchester Large Rifle |
| Speer Speer 400gr | IMR IMR-4198 | 46 gr | 1,969 fps | 2.70 | Winchester Large Rifle |
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