Load Specifications
Load data in caliber .50 BMG with .510 | 808gr | Lehigh Defense Match Solid bullet and 33 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-33 and Alliant Reloder-50.
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% | 45,281 psi | 84% | 2379 fps | 99.2% |
| ADI AR 2217 | <<locked>> | 88% | 46,499 psi | 87% | 2356 fps | 100% |
| ADI AR 2218 | <<locked>> | 92% | 45,803 psi | 85% | 2470 fps | 99.8% |
| ADI AR 2225 | <<locked>> | 90% | 45,788 psi | 85% | 2379 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 84% | 46,934 psi | 87% | 2343 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 47,427 psi | 88% | 2451 fps | 99.7% |
| Alliant Reloder-50 | <<locked>> | 94% | 46,949 psi | 87% | 2451 fps | 99.5% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 47,877 psi | 89% | 2343 fps | 99.7% |
| Bofors RP15 | <<locked>> | 82% | 47,776 psi | 89% | 2352 fps | 100% |
| Bofors RP30 | <<locked>> | 86% | 46,702 psi | 87% | 2369 fps | 100% |
| Hodgdon H1000 | <<locked>> | 86% | 47,558 psi | 89% | 2365 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 46,311 psi | 86% | 2425 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,072 psi | 71% | 1486 fps | 100% |
| Hodgdon US 869 | <<locked>> | 96% | 46,557 psi | 87% | 2385 fps | 96.1% |
| IMR 7977 Enduron | <<locked>> | 84% | 45,730 psi | 85% | 2254 fps | 97.1% |
| IMR 8133 Enduron | <<locked>> | 94% | 48,341 psi | 90% | 2418 fps | 100% |
| Lovex D100 | <<locked>> | 90% | 48,254 psi | 90% | 2349 fps | 96.9% |
| Lovex S071 | <<locked>> | 84% | 46,644 psi | 87% | 2254 fps | 100% |
| Norma 217 | <<locked>> | 92% | 46,224 psi | 86% | 2388 fps | 100% |
| Ramshot LRT | <<locked>> | 92% | 45,876 psi | 85% | 2415 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 84% | 48,559 psi | 90% | 2352 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,088 psi | 73% | 1522 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 45,759 psi | 85% | 2408 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 48,515 psi | 90% | 2444 fps | 100% |
| Shooters World 50 BMG | <<locked>> | 90% | 48,254 psi | 90% | 2349 fps | 96.9% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 47,369 psi | 88% | 2385 fps | 99.2% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 44,034 psi | 82% | 2365 fps | 97.5% |
| Vihtavuori 24N41 | <<locked>> | 94% | 47,514 psi | 89% | 2392 fps | 96.3% |
| Vihtavuori N165 | <<locked>> | 82% | 48,544 psi | 90% | 2293 fps | 100% |
| Vihtavuori N170 | <<locked>> | 86% | 47,340 psi | 88% | 2336 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 84% | 48,298 psi | 90% | 2379 fps | 100% |
| Vihtavuori N568 | <<locked>> | 86% | 46,108 psi | 86% | 2398 fps | 100% |
| Vihtavuori N570 | <<locked>> | 88% | 47,268 psi | 88% | 2457 fps | 99.6% |
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% | 31,691 psi | 59% | 2123 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 80% | 35,259 psi | 66% | 2165 fps | 99.8% |
| ADI AR 2218 | 188.9 gr | 80% | 29,834 psi | 56% | 2126 fps | 95% |
| ADI AR 2225 | <<locked>> | 80% | 32,460 psi | 60% | 2152 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 40,944 psi | 76% | 2257 fps | 100% |
| Alliant Reloder-33 | 192.3 gr | 80% | 32,648 psi | 61% | 2178 fps | 96.7% |
| Alliant Reloder-50 | 196.5 gr | 82% | 30,095 psi | 56% | 2123 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 44,846 psi | 84% | 2293 fps | 99.4% |
| Bofors RP15 | <<locked>> | 80% | 44,715 psi | 83% | 2306 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 38,087 psi | 71% | 2231 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 38,392 psi | 72% | 2224 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 40,147 psi | 75% | 2326 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,572 psi | 53% | 1325 fps | 100% |
| Hodgdon US 869 | <<locked>> | 94% | 43,439 psi | 81% | 2333 fps | 95.2% |
| IMR 7977 Enduron | <<locked>> | 80% | 40,234 psi | 75% | 2159 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 80% | 29,979 psi | 56% | 2090 fps | 98.8% |
| Lovex D100 | <<locked>> | 86% | 41,974 psi | 78% | 2247 fps | 95.2% |
| Lovex S071 | <<locked>> | 80% | 41,104 psi | 77% | 2172 fps | 100% |
| Norma 217 | <<locked>> | 80% | 30,385 psi | 57% | 2110 fps | 99.9% |
| Ramshot LRT | <<locked>> | 90% | 42,786 psi | 80% | 2359 fps | 95.3% |
| Ramshot Magnum | <<locked>> | 80% | 41,843 psi | 78% | 2257 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,414 psi | 55% | 1358 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 39,291 psi | 73% | 2310 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 35,911 psi | 67% | 2234 fps | 99.3% |
| Shooters World 50 BMG | <<locked>> | 86% | 41,974 psi | 78% | 2247 fps | 95.2% |
| SNPE Vectan SP 13 | <<locked>> | 86% | 31,430 psi | 59% | 2093 fps | 95% |
| Vihtavuori 20N29 | <<locked>> | 96% | 38,174 psi | 71% | 2260 fps | 95.9% |
| Vihtavuori 24N41 | <<locked>> | 92% | 44,353 psi | 83% | 2339 fps | 95.4% |
| Vihtavuori N165 | <<locked>> | 80% | 45,484 psi | 85% | 2251 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 38,667 psi | 72% | 2188 fps | 96.9% |
| Vihtavuori N565 | <<locked>> | 80% | 42,192 psi | 79% | 2283 fps | 100% |
| Vihtavuori N568 | <<locked>> | 80% | 37,260 psi | 69% | 2244 fps | 99.1% |
| Vihtavuori N570 | <<locked>> | 80% | 35,433 psi | 66% | 2241 fps | 97.3% |
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 34 powders for .50 BMG loaded with the .510 | 808gr | Lehigh Defense Match Solid. ADI AR 2218 delivers the highest muzzle velocity at 2,470 fps; across all powders the maximum-charge window runs from 1,486 fps to 2,470 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 34 of the 34 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 808.0 gr projectile in 0.51" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. 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-33, Alliant Reloder-50 rank at the top here: for .50 BMG with the .510 | 808gr | Lehigh Defense Match Solid they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon 50BMG 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.