Load Specifications
Load data in caliber .50 BMG with .510 | 750gr | Barnes Banded Solid BT Bore Rider bullet and 31 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Vihtavuori N570 and Alliant Reloder-33.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 29"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 8700ᴾ | <<locked>> | 100% | 46,659 psi | 87% | 2484 fps | 98.9% |
| ADI AR 2217 | <<locked>> | 90% | 47,921 psi | 89% | 2464 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 47,355 psi | 88% | 2582 fps | 99.6% |
| ADI AR 2225 | <<locked>> | 92% | 47,079 psi | 88% | 2490 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 48,457 psi | 90% | 2385 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 48,414 psi | 90% | 2457 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 45,440 psi | 85% | 2507 fps | 99.1% |
| Alliant Reloder-50 | <<locked>> | 96% | 48,559 psi | 90% | 2562 fps | 99.3% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 46,456 psi | 87% | 2402 fps | 99.2% |
| Bofors RP15 | <<locked>> | 82% | 46,325 psi | 86% | 2418 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 48,196 psi | 90% | 2480 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 46,079 psi | 86% | 2434 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 48,559 psi | 90% | 2418 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 47,558 psi | 89% | 2536 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,029 psi | 71% | 1545 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 86% | 47,471 psi | 88% | 2359 fps | 96.7% |
| IMR 8133 Enduron | <<locked>> | 94% | 46,528 psi | 87% | 2480 fps | 100% |
| Lovex S071 | <<locked>> | 84% | 45,614 psi | 85% | 2323 fps | 100% |
| Norma 217 | <<locked>> | 94% | 47,500 psi | 89% | 2497 fps | 100% |
| Ramshot Magnum | <<locked>> | 82% | 47,906 psi | 89% | 2434 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,030 psi | 73% | 1581 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 47,239 psi | 88% | 2523 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 46,630 psi | 87% | 2507 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 45,672 psi | 85% | 2441 fps | 98.4% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 42,293 psi | 79% | 2411 fps | 96.1% |
| Vihtavuori N165 | <<locked>> | 82% | 47,224 psi | 88% | 2359 fps | 100% |
| Vihtavuori N170 | <<locked>> | 86% | 45,992 psi | 86% | 2392 fps | 97.9% |
| Vihtavuori N565 | <<locked>> | 84% | 46,876 psi | 87% | 2444 fps | 100% |
| Vihtavuori N568 | <<locked>> | 88% | 47,630 psi | 89% | 2507 fps | 99.9% |
| Vihtavuori N570 | <<locked>> | 88% | 45,440 psi | 85% | 2513 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 82% | 47,834 psi | 89% | 2467 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 29"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 8700 | <<locked>> | 92% | 35,317 psi | 66% | 2270 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 80% | 34,301 psi | 64% | 2221 fps | 99.2% |
| ADI AR 2218 | 199.6 gr | 84% | 33,373 psi | 62% | 2287 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 80% | 31,560 psi | 59% | 2208 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 45,397 psi | 85% | 2343 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 39,552 psi | 74% | 2320 fps | 100% |
| Alliant Reloder-33 | 193.6 gr | 80% | 31,647 psi | 59% | 2228 fps | 95.2% |
| Alliant Reloder-50 | <<locked>> | 86% | 33,852 psi | 63% | 2283 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 43,569 psi | 81% | 2352 fps | 98.7% |
| Bofors RP15 | <<locked>> | 80% | 43,439 psi | 81% | 2372 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 36,956 psi | 69% | 2287 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 80% | 35,215 psi | 66% | 2241 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 80% | 42,728 psi | 80% | 2323 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 80% | 38,725 psi | 72% | 2388 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,572 psi | 53% | 1378 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 82% | 41,872 psi | 78% | 2264 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 80% | 29,153 psi | 54% | 2142 fps | 97.8% |
| Lovex S071 | <<locked>> | 80% | 40,277 psi | 75% | 2241 fps | 100% |
| Norma 217 | <<locked>> | 80% | 29,457 psi | 55% | 2165 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 80% | 44,396 psi | 83% | 2382 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,399 psi | 55% | 1411 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 37,855 psi | 71% | 2369 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 34,708 psi | 65% | 2287 fps | 98.4% |
| SNPE Vectan SP 13 | <<locked>> | 90% | 34,998 psi | 65% | 2241 fps | 95.4% |
| Vihtavuori 20N29 | <<locked>> | 98% | 39,465 psi | 74% | 2359 fps | 95.3% |
| Vihtavuori N165 | <<locked>> | 80% | 44,266 psi | 82% | 2313 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 37,797 psi | 70% | 2241 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 80% | 41,017 psi | 76% | 2346 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 80% | 36,027 psi | 67% | 2297 fps | 98.3% |
| Vihtavuori N570 | 186.3 gr | 80% | 34,272 psi | 64% | 2293 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 44,440 psi | 83% | 2418 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 37 powders for .50 BMG loaded with the .510 | 750gr | Barnes Banded Solid BT Bore Rider. ADI AR 2218 delivers the highest muzzle velocity at 2,582 fps; across all powders the maximum-charge window runs from 1,545 fps to 2,582 fps. Accurate 8700 gives the best case fill at 100 %, and 37 of the 37 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (370 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 750.0 gr projectile in 0.51" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, Hodgdon TrailBoss, ReloadSwiss RS 14 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ADI AR 2218, Vihtavuori N570, Alliant Reloder-33 rank at the top here: for .50 BMG with the .510 | 750gr | Barnes Banded Solid BT Bore Rider they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon 50BMG, Vihtavuori 24N41 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.