Load Specifications
Load data in caliber .50 BMG with .510 | 750gr | Hornady A-MAX bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Alliant Reloder-50 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 8700 | <<locked>> | 98% | 46,093 psi | 86% | 2484 fps | 99% |
| ADI AR 2217 | <<locked>> | 88% | 47,036 psi | 88% | 2461 fps | 100% |
| ADI AR 2218 | <<locked>> | 92% | 46,470 psi | 87% | 2575 fps | 99.6% |
| ADI AR 2225 | <<locked>> | 90% | 46,470 psi | 87% | 2490 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 84% | 47,645 psi | 89% | 2451 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 48,225 psi | 90% | 2559 fps | 99.6% |
| Alliant Reloder-50 | <<locked>> | 94% | 48,066 psi | 90% | 2559 fps | 99.3% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 48,254 psi | 90% | 2441 fps | 99.5% |
| Bofors RP15 | <<locked>> | 82% | 48,370 psi | 90% | 2461 fps | 100% |
| Bofors RP30 | <<locked>> | 86% | 47,471 psi | 88% | 2477 fps | 100% |
| Hodgdon H1000 | <<locked>> | 86% | 48,066 psi | 90% | 2470 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 46,876 psi | 87% | 2533 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,130 psi | 71% | 1562 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 84% | 46,238 psi | 86% | 2352 fps | 96.7% |
| IMR 8133 Enduron | <<locked>> | 92% | 46,021 psi | 86% | 2480 fps | 100% |
| Lovex S071 | <<locked>> | 84% | 47,601 psi | 89% | 2359 fps | 100% |
| Norma 217 | <<locked>> | 92% | 47,079 psi | 88% | 2497 fps | 100% |
| Ramshot Magnum | <<locked>> | 82% | 45,847 psi | 85% | 2411 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,189 psi | 73% | 1601 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 46,485 psi | 87% | 2516 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 45,905 psi | 86% | 2500 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 48,240 psi | 90% | 2490 fps | 99% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 44,933 psi | 84% | 2467 fps | 97.1% |
| Vihtavuori N170 | <<locked>> | 86% | 48,080 psi | 90% | 2438 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 82% | 46,006 psi | 86% | 2438 fps | 100% |
| Vihtavuori N568 | <<locked>> | 86% | 46,920 psi | 87% | 2503 fps | 99.9% |
| Vihtavuori N570 | <<locked>> | 88% | 48,051 psi | 90% | 2566 fps | 99.4% |
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>> | 88% | 32,532 psi | 61% | 2218 fps | 95% |
| ADI AR 2217 | <<locked>> | 80% | 35,897 psi | 67% | 2264 fps | 99.6% |
| ADI AR 2218 | 203.4 gr | 82% | 32,721 psi | 61% | 2280 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 80% | 33,156 psi | 62% | 2251 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 41,611 psi | 78% | 2362 fps | 100% |
| Alliant Reloder-33 | 202.1 gr | 80% | 33,489 psi | 62% | 2277 fps | 96.3% |
| Alliant Reloder-50 | 211.6 gr | 84% | 33,562 psi | 63% | 2280 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 45,281 psi | 84% | 2395 fps | 99.2% |
| Bofors RP15 | <<locked>> | 80% | 45,353 psi | 85% | 2411 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 38,841 psi | 72% | 2333 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 80% | 39,015 psi | 73% | 2326 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 40,756 psi | 76% | 2434 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,703 psi | 53% | 1394 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 80% | 40,741 psi | 76% | 2254 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 80% | 30,850 psi | 57% | 2188 fps | 98.5% |
| Lovex S071 | <<locked>> | 80% | 42,032 psi | 78% | 2277 fps | 100% |
| Norma 217 | <<locked>> | 80% | 31,256 psi | 58% | 2211 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 80% | 42,583 psi | 79% | 2362 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,515 psi | 55% | 1427 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 40,030 psi | 75% | 2415 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 36,811 psi | 69% | 2336 fps | 99% |
| SNPE Vectan SP 13 | <<locked>> | 88% | 34,548 psi | 64% | 2241 fps | 95.5% |
| Vihtavuori 20N29 | <<locked>> | 96% | 39,088 psi | 73% | 2362 fps | 95.4% |
| Vihtavuori N170 | <<locked>> | 80% | 39,465 psi | 74% | 2287 fps | 96.5% |
| Vihtavuori N565 | <<locked>> | 80% | 43,047 psi | 80% | 2388 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 80% | 38,014 psi | 71% | 2346 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 80% | 36,201 psi | 67% | 2343 fps | 96.8% |
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 27 powders for .50 BMG loaded with the .510 | 750gr | Hornady A-MAX. ADI AR 2218 delivers the highest muzzle velocity at 2,575 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,575 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 27 of the 27 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. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori 20N29 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, Alliant Reloder-50, Alliant Reloder-33 rank at the top here: for .50 BMG with the .510 | 750gr | Hornady A-MAX they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.