Load Specifications
Load data in caliber .360 Buckhammer with .358 | 250gr | Woodleigh RN 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>> | 92% | 42,859 psi | 86% | 1857 fps | 97.5% |
| ADI AR 2205 | <<locked>> | 84% | 44,715 psi | 89% | 1798 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 42,757 psi | 86% | 1929 fps | 99.9% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 37,028 psi | 74% | 1867 fps | 96.6% |
| Alliant Reloder-7 | <<locked>> | 96% | 43,062 psi | 86% | 1896 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,240 psi | 58% | 1132 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 41,249 psi | 82% | 1870 fps | 98.2% |
| IMR 4227 | <<locked>> | 90% | 43,265 psi | 87% | 1850 fps | 99.5% |
| Lovex D060 | <<locked>> | 84% | 44,904 psi | 90% | 1880 fps | 98.7% |
| Lovex D063 | <<locked>> | 84% | 44,425 psi | 89% | 1860 fps | 99.1% |
| Lovex S053 | <<locked>> | 92% | 44,222 psi | 88% | 1860 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 42,250 psi | 84% | 1932 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,732 psi | 57% | 1158 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 44,585 psi | 89% | 1906 fps | 99.6% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 44,904 psi | 90% | 1880 fps | 98.7% |
| Shooters World SOCOM | <<locked>> | 84% | 44,425 psi | 89% | 1860 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 43,279 psi | 87% | 1745 fps | 100% |
| Vihtavuori N110 | <<locked>> | 86% | 43,990 psi | 88% | 1798 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 43,062 psi | 86% | 1900 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 36,666 psi | 73% | 1808 fps | 96% |
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>> | 86% | 35,244 psi | 70% | 1749 fps | 95.6% |
| ADI AR 2205 | <<locked>> | 80% | 39,842 psi | 80% | 1739 fps | 100% |
| ADI AR 2207 | 22.4 gr | 80% | 25,092 psi | 50% | 1634 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 96% | 32,967 psi | 66% | 1801 fps | 95.4% |
| Alliant Reloder-7 | 24.9 gr | 86% | 31,923 psi | 64% | 1726 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,466 psi | 43% | 1010 fps | 100% |
| IMR 4198 | <<locked>> | 90% | 31,415 psi | 63% | 1709 fps | 95.4% |
| IMR 4227 | <<locked>> | 80% | 32,300 psi | 65% | 1690 fps | 97.6% |
| Lovex D060 | <<locked>> | 80% | 40,059 psi | 80% | 1811 fps | 97.9% |
| Lovex D063 | <<locked>> | 80% | 39,204 psi | 78% | 1791 fps | 98.3% |
| Lovex S053 | <<locked>> | 80% | 31,560 psi | 63% | 1680 fps | 99.6% |
| Norma 200 | <<locked>> | 88% | 29,283 psi | 59% | 1729 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,871 psi | 42% | 1030 fps | 100% |
| ReloadSwiss RS 36 | 23.3 gr | 80% | 30,966 psi | 62% | 1703 fps | 97% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 40,059 psi | 80% | 1811 fps | 97.9% |
| Shooters World SOCOM | <<locked>> | 80% | 39,204 psi | 78% | 1791 fps | 98.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 29,791 psi | 60% | 1572 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 37,144 psi | 74% | 1716 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 25,512 psi | 51% | 1617 fps | 97.8% |
| Vihtavuori N130 | <<locked>> | 98% | 34,403 psi | 69% | 1775 fps | 95.3% |
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 20 powders for .360 Buckhammer loaded with the .358 | 250gr | Woodleigh RN SN. Norma 200 delivers the highest muzzle velocity at 1,932 fps; across all powders the maximum-charge window runs from 1,132 fps to 1,932 fps. Alliant Reloder-10x 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 57–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.358" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-10x, Hodgdon TrailBoss, IMR 4198 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 | 250gr | Woodleigh RN 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.