Load Specifications
Load data in caliber .50 BMG with .510 | 570gr | A-Square MONO RN bullet and 34 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 ReloadSwiss RS 80.
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 3100 | <<locked>> | 82% | 48,298 psi | 90% | 2746 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 45,759 psi | 85% | 2818 fps | 96.9% |
| ADI AR 2213 | <<locked>> | 82% | 47,688 psi | 89% | 2838 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 90% | 46,702 psi | 87% | 2825 fps | 99.8% |
| ADI AR 2218 | <<locked>> | 94% | 46,325 psi | 86% | 2923 fps | 97.7% |
| ADI AR 2225 | <<locked>> | 92% | 45,847 psi | 85% | 2854 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 48,385 psi | 90% | 2838 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 47,065 psi | 88% | 2756 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 47,021 psi | 88% | 2825 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 47,776 psi | 89% | 2910 fps | 97.9% |
| Alliant Reloder-50 | <<locked>> | 96% | 47,456 psi | 88% | 2900 fps | 97.4% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 48,443 psi | 90% | 2805 fps | 98.1% |
| Bofors RP15 | <<locked>> | 84% | 48,037 psi | 90% | 2831 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 46,920 psi | 87% | 2841 fps | 99.8% |
| Bofors RP5 | <<locked>> | 82% | 48,385 psi | 90% | 2838 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 47,718 psi | 89% | 2841 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 46,093 psi | 86% | 2907 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,884 psi | 71% | 1841 fps | 100% |
| IMR 7828 SSC | <<locked>> | 82% | 46,456 psi | 87% | 2825 fps | 99.6% |
| IMR 8133 Enduron | <<locked>> | 96% | 48,443 psi | 90% | 2890 fps | 99.9% |
| Lovex S071 | <<locked>> | 86% | 47,239 psi | 88% | 2726 fps | 100% |
| Norma 217 | <<locked>> | 94% | 46,180 psi | 86% | 2858 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 46,920 psi | 87% | 2841 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 84% | 45,513 psi | 85% | 2776 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,856 psi | 72% | 1886 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 45,876 psi | 85% | 2887 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 45,397 psi | 85% | 2851 fps | 99% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 47,863 psi | 89% | 2835 fps | 97% |
| Vihtavuori N165 | <<locked>> | 82% | 46,006 psi | 86% | 2717 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 48,037 psi | 90% | 2789 fps | 96.4% |
| Vihtavuori N565 | <<locked>> | 84% | 45,614 psi | 85% | 2795 fps | 99.3% |
| Vihtavuori N568 | <<locked>> | 88% | 46,383 psi | 86% | 2861 fps | 98.8% |
| Vihtavuori N570 | <<locked>> | 90% | 47,413 psi | 88% | 2920 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 46,180 psi | 86% | 2835 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 3100 | <<locked>> | 80% | 45,194 psi | 84% | 2694 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 42,540 psi | 79% | 2756 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 80% | 44,498 psi | 83% | 2779 fps | 99.3% |
| ADI AR 2217 | <<locked>> | 80% | 33,243 psi | 62% | 2526 fps | 96.9% |
| ADI AR 2218 | 258.9 gr | 90% | 40,190 psi | 75% | 2782 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 80% | 30,545 psi | 57% | 2503 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,295 psi | 84% | 2782 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,048 psi | 82% | 2703 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,232 psi | 71% | 2664 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 86% | 38,203 psi | 71% | 2710 fps | 95.1% |
| Alliant Reloder-50 | <<locked>> | 92% | 40,973 psi | 76% | 2769 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 42,670 psi | 80% | 2690 fps | 96.7% |
| Bofors RP15 | <<locked>> | 80% | 42,163 psi | 79% | 2720 fps | 99.5% |
| Bofors RP30 | <<locked>> | 80% | 35,723 psi | 67% | 2605 fps | 97.9% |
| Bofors RP5 | <<locked>> | 80% | 45,295 psi | 84% | 2782 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 80% | 36,085 psi | 67% | 2602 fps | 98.4% |
| Hodgdon Retumbo | <<locked>> | 80% | 37,391 psi | 70% | 2720 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,471 psi | 53% | 1647 fps | 100% |
| IMR 7828 SSC | <<locked>> | 80% | 43,279 psi | 81% | 2762 fps | 99.2% |
| IMR 8133 Enduron | <<locked>> | 82% | 30,095 psi | 56% | 2480 fps | 95.5% |
| Lovex S071 | <<locked>> | 80% | 39,088 psi | 73% | 2579 fps | 100% |
| Norma 217 | <<locked>> | 80% | 28,297 psi | 53% | 2448 fps | 97% |
| Ramshot Grand | <<locked>> | 80% | 43,569 psi | 81% | 2779 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 80% | 39,233 psi | 73% | 2654 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,240 psi | 54% | 1686 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 36,622 psi | 68% | 2694 fps | 99.9% |
| ReloadSwiss RS 80 | 234.3 gr | 80% | 33,547 psi | 63% | 2585 fps | 95.6% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 41,742 psi | 78% | 2713 fps | 95.2% |
| Vihtavuori N165 | <<locked>> | 80% | 43,062 psi | 80% | 2661 fps | 99.8% |
| Vihtavuori N170 | <<locked>> | 86% | 44,947 psi | 84% | 2730 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 80% | 39,842 psi | 74% | 2677 fps | 98.3% |
| Vihtavuori N568 | <<locked>> | 80% | 34,896 psi | 65% | 2605 fps | 95.5% |
| Vihtavuori N570 | 242.3 gr | 86% | 41,089 psi | 77% | 2785 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,830 psi | 80% | 2779 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 41 powders for .50 BMG loaded with the .510 | 570gr | A-Square MONO RN. ADI AR 2218 delivers the highest muzzle velocity at 2,923 fps; across all powders the maximum-charge window runs from 1,841 fps to 2,923 fps. Accurate 8700 gives the best case fill at 100 %, and 41 of the 41 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. 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, ReloadSwiss RS 80 rank at the top here: for .50 BMG with the .510 | 570gr | A-Square MONO RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon US 869, IMR 7977 Enduron, Lovex D100 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.