Load Specifications
Load data in caliber .360 Buckhammer with .358 | 275gr | Woodleigh PP SN bullet and 20 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 36, ADI AR 2207 and Alliant Reloder-7.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 94% | 43,105 psi | 86% | 1696 fps | 97.3% |
| Accurate No. 11 FS | <<locked>> | 82% | 42,815 psi | 86% | 1677 fps | 99.9% |
| ADI AR 2205 | <<locked>> | 86% | 45,049 psi | 90% | 1640 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 42,264 psi | 85% | 1759 fps | 99.9% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 45,078 psi | 90% | 1755 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,572 psi | 57% | 1017 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 38,943 psi | 78% | 1673 fps | 97.5% |
| IMR 4227 | <<locked>> | 92% | 43,308 psi | 87% | 1690 fps | 99.4% |
| Lovex D060 | <<locked>> | 86% | 44,976 psi | 90% | 1716 fps | 98.6% |
| Lovex D063 | <<locked>> | 82% | 44,164 psi | 88% | 1703 fps | 98.5% |
| Lovex S053 | <<locked>> | 94% | 43,642 psi | 87% | 1693 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 38,725 psi | 77% | 1729 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,123 psi | 56% | 1043 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 94% | 44,382 psi | 89% | 1739 fps | 99.5% |
| Shooters World Blackout | <<locked>> | 82% | 44,164 psi | 88% | 1703 fps | 98.5% |
| Shooters World Buffalo Rifle | <<locked>> | 86% | 44,976 psi | 90% | 1716 fps | 98.6% |
| Shooters World SOCOM | <<locked>> | 86% | 44,614 psi | 89% | 1699 fps | 99% |
| SNPE Vectan BA6 1/2 | <<locked>> | 98% | 44,947 psi | 90% | 1611 fps | 100% |
| Vihtavuori N110 | <<locked>> | 88% | 44,251 psi | 89% | 1647 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 42,598 psi | 85% | 1732 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 88% | 35,549 psi | 71% | 1601 fps | 95.5% |
| Accurate No. 11 FS | <<locked>> | 80% | 40,277 psi | 81% | 1647 fps | 99.7% |
| ADI AR 2205 | <<locked>> | 80% | 37,536 psi | 75% | 1555 fps | 100% |
| ADI AR 2207 | 19.1 gr | 80% | 23,424 psi | 47% | 1460 fps | 95.5% |
| Alliant Reloder-7 | 21.7 gr | 88% | 31,372 psi | 63% | 1572 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,972 psi | 42% | 909 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 31,517 psi | 63% | 1562 fps | 95.2% |
| IMR 4227 | <<locked>> | 80% | 30,472 psi | 61% | 1512 fps | 96.9% |
| Lovex D060 | <<locked>> | 80% | 37,985 psi | 76% | 1624 fps | 97.2% |
| Lovex D063 | <<locked>> | 80% | 41,002 psi | 82% | 1663 fps | 98% |
| Lovex S053 | <<locked>> | 80% | 29,443 psi | 59% | 1503 fps | 99.3% |
| Norma 200 | <<locked>> | 92% | 30,313 psi | 61% | 1604 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,392 psi | 41% | 928 fps | 100% |
| ReloadSwiss RS 36 | 19.9 gr | 80% | 29,037 psi | 58% | 1526 fps | 96.2% |
| Shooters World Blackout | <<locked>> | 80% | 41,002 psi | 82% | 1663 fps | 98% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 37,985 psi | 76% | 1624 fps | 97.2% |
| Shooters World SOCOM | <<locked>> | 80% | 36,738 psi | 73% | 1601 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 28,340 psi | 57% | 1414 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 35,027 psi | 70% | 1542 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 23,815 psi | 48% | 1447 fps | 97% |
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 20 powders for .360 Buckhammer loaded with the .358 | 275gr | Woodleigh PP SN. ADI AR 2207 delivers the highest muzzle velocity at 1,759 fps; across all powders the maximum-charge window runs from 1,017 fps to 1,759 fps. ADI AR 2207 gives the best case fill at 100 %, and 20 of the 20 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (345 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 275.0 gr projectile in 0.358" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. ADI AR 2207, Alliant Reloder-7, 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. ReloadSwiss RS 36, ADI AR 2207, Alliant Reloder-7 rank at the top here: for .360 Buckhammer with the .358 | 275gr | Woodleigh PP SN 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.