Load Specifications
Load data in caliber .510 Whisper with .509 | 570gr | Barnes Banded Solid RN bullet and 22 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207.
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: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 90% | 43,976 psi | 88% | 1647 fps | 98% |
| ADI AR 2205 | <<locked>> | 82% | 45,165 psi | 90% | 1585 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 44,527 psi | 89% | 1709 fps | 100% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 33,446 psi | 67% | 1611 fps | 96.5% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 41,249 psi | 82% | 1693 fps | 97.8% |
| Alliant Reloder-7 | <<locked>> | 94% | 44,469 psi | 89% | 1683 fps | 98.7% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 44,657 psi | 89% | 1667 fps | 95.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,037 psi | 60% | 1007 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 45,005 psi | 90% | 1693 fps | 99.1% |
| IMR 4227 | <<locked>> | 88% | 44,295 psi | 89% | 1637 fps | 99.7% |
| Lovex D060 | <<locked>> | 82% | 45,281 psi | 90% | 1657 fps | 99% |
| Lovex S053 | <<locked>> | 90% | 45,237 psi | 90% | 1644 fps | 100% |
| Norma 200 | <<locked>> | 98% | 44,179 psi | 88% | 1719 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,457 psi | 59% | 1027 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 43,120 psi | 86% | 1657 fps | 99.6% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 45,281 psi | 90% | 1657 fps | 99% |
| Shooters World SOCOM | <<locked>> | 82% | 45,194 psi | 90% | 1647 fps | 99.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 44,382 psi | 89% | 1542 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 43,076 psi | 86% | 1693 fps | 96% |
| Vihtavuori N110 | <<locked>> | 84% | 45,252 psi | 90% | 1591 fps | 100% |
| Vihtavuori N120 | <<locked>> | 96% | 44,846 psi | 90% | 1686 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 40,321 psi | 81% | 1637 fps | 97.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 33,997 psi | 68% | 1519 fps | 95.6% |
| ADI AR 2205 | <<locked>> | 80% | 42,496 psi | 85% | 1555 fps | 100% |
| ADI AR 2207 | 42.1 gr | 80% | 27,499 psi | 55% | 1473 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 98% | 31,517 psi | 63% | 1578 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 92% | 32,590 psi | 65% | 1572 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 82% | 31,082 psi | 62% | 1499 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 41,872 psi | 84% | 1634 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,017 psi | 44% | 896 fps | 100% |
| IMR 4198 | <<locked>> | 86% | 30,603 psi | 61% | 1490 fps | 95.4% |
| IMR 4227 | <<locked>> | 80% | 35,012 psi | 70% | 1519 fps | 98.5% |
| Lovex D060 | <<locked>> | 80% | 42,815 psi | 86% | 1627 fps | 98.6% |
| Lovex S053 | <<locked>> | 80% | 34,200 psi | 68% | 1509 fps | 99.9% |
| Norma 200 | <<locked>> | 84% | 28,848 psi | 58% | 1503 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,698 psi | 43% | 919 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 33,823 psi | 68% | 1535 fps | 98.1% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 42,815 psi | 86% | 1627 fps | 98.6% |
| Shooters World SOCOM | <<locked>> | 80% | 42,293 psi | 85% | 1611 fps | 99% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 32,474 psi | 65% | 1407 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 40,756 psi | 81% | 1663 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 40,451 psi | 81% | 1539 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 27,862 psi | 56% | 1457 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 94% | 33,779 psi | 68% | 1549 fps | 95.4% |
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 22 powders for .510 Whisper loaded with the .509 | 570gr | Barnes Banded Solid RN. Norma 200 delivers the highest muzzle velocity at 1,719 fps; across all powders the maximum-charge window runs from 1,007 fps to 1,719 fps. Alliant AR-Comp gives the best case fill at 100 %, and 22 of the 22 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (345 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. Alliant AR-Comp, Alliant Reloder-10x, Hodgdon TrailBoss 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 2219, ADI AR 2207, Hodgdon H322 rank at the top here: for .510 Whisper with the .509 | 570gr | Barnes Banded Solid RN they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss, ReloadSwiss RS 14 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.