Load Specifications
Load data in caliber .510 DTC with .510 | 725gr | Lehigh Defense Controlled Fracturing 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-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% | 44,193 psi | 85% | 2503 fps | 98.5% |
| ADI AR 2217 | <<locked>> | 88% | 45,397 psi | 87% | 2487 fps | 100% |
| ADI AR 2218 | <<locked>> | 92% | 44,773 psi | 86% | 2598 fps | 99.2% |
| ADI AR 2225 | <<locked>> | 90% | 44,686 psi | 86% | 2516 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 84% | 45,861 psi | 88% | 2480 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 46,224 psi | 89% | 2579 fps | 99.2% |
| Alliant Reloder-50 | <<locked>> | 94% | 45,745 psi | 88% | 2575 fps | 98.8% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 47,007 psi | 90% | 2474 fps | 99.2% |
| Bofors RP15 | <<locked>> | 82% | 46,702 psi | 89% | 2487 fps | 100% |
| Bofors RP30 | <<locked>> | 86% | 45,585 psi | 87% | 2503 fps | 100% |
| Hodgdon H1000 | <<locked>> | 86% | 46,398 psi | 89% | 2500 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 45,078 psi | 86% | 2562 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,985 psi | 73% | 1598 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 84% | 44,918 psi | 86% | 2379 fps | 96.1% |
| IMR 8133 Enduron | <<locked>> | 94% | 47,166 psi | 90% | 2552 fps | 100% |
| Lovex S071 | <<locked>> | 84% | 45,730 psi | 88% | 2388 fps | 100% |
| Norma 217 | <<locked>> | 92% | 45,034 psi | 86% | 2520 fps | 100% |
| Ramshot Magnum | <<locked>> | 82% | 43,976 psi | 84% | 2438 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,986 psi | 75% | 1634 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 44,585 psi | 85% | 2543 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 43,830 psi | 84% | 2520 fps | 99.8% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 46,340 psi | 89% | 2513 fps | 98.5% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 42,960 psi | 82% | 2484 fps | 96.3% |
| Vihtavuori N170 | <<locked>> | 86% | 46,369 psi | 89% | 2461 fps | 98% |
| Vihtavuori N565 | <<locked>> | 84% | 47,239 psi | 90% | 2513 fps | 100% |
| Vihtavuori N568 | <<locked>> | 86% | 45,005 psi | 86% | 2526 fps | 99.7% |
| Vihtavuori N570 | <<locked>> | 88% | 46,108 psi | 88% | 2589 fps | 99% |
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>> | 90% | 33,156 psi | 64% | 2280 fps | 95% |
| ADI AR 2217 | <<locked>> | 80% | 34,403 psi | 66% | 2283 fps | 99.2% |
| ADI AR 2218 | 212.4 gr | 84% | 33,562 psi | 64% | 2349 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 80% | 31,589 psi | 61% | 2264 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 39,943 psi | 77% | 2385 fps | 100% |
| Alliant Reloder-33 | 206 gr | 80% | 31,778 psi | 61% | 2283 fps | 95.1% |
| Alliant Reloder-50 | 220.8 gr | 86% | 33,968 psi | 65% | 2339 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 44,034 psi | 84% | 2421 fps | 98.8% |
| Bofors RP15 | <<locked>> | 80% | 43,714 psi | 84% | 2441 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 37,130 psi | 71% | 2349 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 80% | 37,507 psi | 72% | 2346 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 39,044 psi | 75% | 2454 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,529 psi | 55% | 1424 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 82% | 42,105 psi | 81% | 2329 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 80% | 29,138 psi | 56% | 2195 fps | 97.7% |
| Lovex S071 | <<locked>> | 80% | 40,176 psi | 77% | 2300 fps | 100% |
| Norma 217 | <<locked>> | 80% | 29,443 psi | 56% | 2218 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 80% | 40,814 psi | 78% | 2385 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,312 psi | 56% | 1460 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 38,189 psi | 73% | 2434 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 34,954 psi | 67% | 2346 fps | 98.4% |
| SNPE Vectan SP 13 | <<locked>> | 90% | 35,215 psi | 67% | 2303 fps | 95.5% |
| Vihtavuori 20N29 | <<locked>> | 98% | 39,958 psi | 77% | 2425 fps | 95.4% |
| Vihtavuori N170 | <<locked>> | 80% | 37,869 psi | 73% | 2303 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 80% | 41,249 psi | 79% | 2411 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 80% | 36,289 psi | 70% | 2359 fps | 98.3% |
| Vihtavuori N570 | <<locked>> | 80% | 34,490 psi | 66% | 2352 fps | 95.9% |
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 .510 DTC loaded with the .510 | 725gr | Lehigh Defense Controlled Fracturing. ADI AR 2218 delivers the highest muzzle velocity at 2,598 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,598 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 (360 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 725.0 gr projectile in 0.51" calls for a 1:17.0 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 .510 DTC with the .510 | 725gr | Lehigh Defense Controlled Fracturing 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.