Load Specifications
Load data in caliber .50 BMG with .509 | 570gr | Barnes Banded Solid 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% | 48,283 psi | 90% | 2746 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 45,745 psi | 85% | 2822 fps | 96.9% |
| ADI AR 2213 | <<locked>> | 82% | 47,674 psi | 89% | 2838 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 90% | 46,688 psi | 87% | 2825 fps | 99.8% |
| ADI AR 2218 | <<locked>> | 94% | 46,340 psi | 86% | 2923 fps | 97.7% |
| ADI AR 2225 | <<locked>> | 92% | 45,832 psi | 85% | 2851 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 48,370 psi | 90% | 2838 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 47,050 psi | 88% | 2756 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 47,079 psi | 88% | 2825 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 47,747 psi | 89% | 2910 fps | 97.9% |
| Alliant Reloder-50 | <<locked>> | 96% | 47,485 psi | 88% | 2904 fps | 97.4% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 48,515 psi | 90% | 2808 fps | 98.1% |
| Bofors RP15 | <<locked>> | 84% | 48,109 psi | 90% | 2831 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 46,905 psi | 87% | 2841 fps | 99.8% |
| Bofors RP5 | <<locked>> | 82% | 48,370 psi | 90% | 2838 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 47,747 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% | 46,441 psi | 87% | 2825 fps | 99.6% |
| IMR 8133 Enduron | <<locked>> | 96% | 48,414 psi | 90% | 2890 fps | 99.9% |
| Lovex S071 | <<locked>> | 86% | 47,268 psi | 88% | 2726 fps | 100% |
| Norma 217 | <<locked>> | 94% | 46,151 psi | 86% | 2858 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 46,905 psi | 87% | 2838 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 84% | 45,498 psi | 85% | 2772 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,899 psi | 72% | 1886 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 45,861 psi | 85% | 2887 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 45,426 psi | 85% | 2851 fps | 99% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 47,892 psi | 89% | 2835 fps | 97% |
| Vihtavuori N165 | <<locked>> | 82% | 45,992 psi | 86% | 2717 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 48,095 psi | 90% | 2792 fps | 96.4% |
| Vihtavuori N565 | <<locked>> | 84% | 45,643 psi | 85% | 2795 fps | 99.3% |
| Vihtavuori N568 | <<locked>> | 88% | 46,441 psi | 87% | 2861 fps | 98.8% |
| Vihtavuori N570 | <<locked>> | 90% | 47,384 psi | 88% | 2920 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 46,209 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% | 45,208 psi | 84% | 2694 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 42,525 psi | 79% | 2756 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 80% | 44,527 psi | 83% | 2779 fps | 99.3% |
| ADI AR 2217 | <<locked>> | 80% | 33,228 psi | 62% | 2526 fps | 96.9% |
| ADI AR 2218 | 258.9 gr | 90% | 40,176 psi | 75% | 2782 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 80% | 30,530 psi | 57% | 2503 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,281 psi | 84% | 2782 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,063 psi | 82% | 2703 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,305 psi | 71% | 2664 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 86% | 38,218 psi | 71% | 2710 fps | 95.1% |
| Alliant Reloder-50 | <<locked>> | 92% | 40,959 psi | 76% | 2769 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 42,656 psi | 79% | 2690 fps | 96.7% |
| Bofors RP15 | <<locked>> | 80% | 42,163 psi | 79% | 2720 fps | 99.5% |
| Bofors RP30 | <<locked>> | 80% | 35,737 psi | 67% | 2605 fps | 97.9% |
| Bofors RP5 | <<locked>> | 80% | 45,281 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% | 43,308 psi | 81% | 2762 fps | 99.2% |
| IMR 8133 Enduron | <<locked>> | 82% | 30,081 psi | 56% | 2480 fps | 95.5% |
| Lovex S071 | <<locked>> | 80% | 39,073 psi | 73% | 2575 fps | 100% |
| Norma 217 | <<locked>> | 80% | 28,297 psi | 53% | 2448 fps | 97.1% |
| Ramshot Grand | <<locked>> | 80% | 43,555 psi | 81% | 2776 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 80% | 39,218 psi | 73% | 2654 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,240 psi | 54% | 1686 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 36,666 psi | 68% | 2697 fps | 99.9% |
| ReloadSwiss RS 80 | 234.3 gr | 80% | 33,533 psi | 62% | 2585 fps | 95.6% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 41,756 psi | 78% | 2713 fps | 95.2% |
| Vihtavuori N165 | <<locked>> | 80% | 43,062 psi | 80% | 2661 fps | 99.8% |
| Vihtavuori N170 | <<locked>> | 86% | 44,933 psi | 84% | 2730 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 80% | 39,827 psi | 74% | 2677 fps | 98.3% |
| Vihtavuori N568 | <<locked>> | 80% | 34,882 psi | 65% | 2605 fps | 95.5% |
| Vihtavuori N570 | 242.3 gr | 86% | 41,075 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 .509 | 570gr | Barnes Banded Solid 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 .509 | 570gr | Barnes Banded Solid 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.