Load Specifications
Load data in caliber .360 Buckhammer with .358 | 250gr | Remington SPRN bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, Norma 200 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>> | 90% | 43,294 psi | 87% | 1900 fps | 98.2% |
| Accurate LT-30 | <<locked>> | 96% | 43,874 psi | 88% | 1890 fps | 95.7% |
| ADI AR 2205 | <<locked>> | 82% | 44,411 psi | 89% | 1827 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 43,671 psi | 87% | 1972 fps | 100% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 32,808 psi | 66% | 1860 fps | 96.8% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 40,466 psi | 81% | 1952 fps | 98.1% |
| Alliant Reloder-7 | <<locked>> | 94% | 43,656 psi | 87% | 1939 fps | 98.9% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 43,816 psi | 88% | 1919 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,776 psi | 60% | 1165 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 44,222 psi | 88% | 1952 fps | 99.2% |
| IMR 4227 | <<locked>> | 88% | 43,932 psi | 88% | 1896 fps | 99.8% |
| Lovex D060 | <<locked>> | 82% | 44,773 psi | 90% | 1916 fps | 99.1% |
| Lovex S053 | <<locked>> | 90% | 44,570 psi | 89% | 1896 fps | 100% |
| Norma 200 | <<locked>> | 98% | 43,250 psi | 86% | 1982 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,269 psi | 59% | 1191 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 44,933 psi | 90% | 1946 fps | 99.8% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 44,773 psi | 90% | 1916 fps | 99.1% |
| Shooters World SOCOM | <<locked>> | 82% | 44,614 psi | 89% | 1900 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 43,642 psi | 87% | 1778 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 42,525 psi | 85% | 1952 fps | 96.3% |
| Vihtavuori N110 | <<locked>> | 84% | 44,686 psi | 89% | 1837 fps | 100% |
| Vihtavuori N120 | <<locked>> | 96% | 43,990 psi | 88% | 1942 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 39,726 psi | 79% | 1890 fps | 97.5% |
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>> | 80% | 31,328 psi | 63% | 1716 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 94% | 41,466 psi | 83% | 1857 fps | 95.1% |
| ADI AR 2205 | <<locked>> | 80% | 41,930 psi | 84% | 1798 fps | 100% |
| ADI AR 2207 | 24.2 gr | 80% | 26,992 psi | 54% | 1703 fps | 97.9% |
| Alliant AR-Comp | <<locked>> | 96% | 29,341 psi | 59% | 1788 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 90% | 30,110 psi | 60% | 1781 fps | 95.1% |
| Alliant Reloder-7 | 25.7 gr | 82% | 30,574 psi | 61% | 1736 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 41,162 psi | 82% | 1883 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,741 psi | 43% | 1037 fps | 100% |
| IMR 4198 | <<locked>> | 84% | 28,616 psi | 57% | 1690 fps | 95% |
| IMR 4227 | <<locked>> | 80% | 34,563 psi | 69% | 1759 fps | 98.6% |
| Lovex D060 | <<locked>> | 80% | 42,264 psi | 85% | 1883 fps | 98.8% |
| Lovex S053 | <<locked>> | 80% | 33,591 psi | 67% | 1742 fps | 100% |
| Norma 200 | 26.6 gr | 84% | 28,195 psi | 56% | 1739 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,509 psi | 43% | 1063 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 33,315 psi | 67% | 1775 fps | 98.3% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 42,264 psi | 85% | 1883 fps | 98.8% |
| Shooters World SOCOM | <<locked>> | 80% | 41,684 psi | 83% | 1864 fps | 99.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 31,778 psi | 64% | 1627 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 37,898 psi | 76% | 1883 fps | 95% |
| Vihtavuori N110 | <<locked>> | 80% | 39,856 psi | 80% | 1778 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 27,369 psi | 55% | 1686 fps | 98.9% |
| Vihtavuori N130 | <<locked>> | 92% | 31,502 psi | 63% | 1759 fps | 95.1% |
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 23 powders for .360 Buckhammer loaded with the .358 | 250gr | Remington SPRN. Norma 200 delivers the highest muzzle velocity at 1,982 fps; across all powders the maximum-charge window runs from 1,165 fps to 1,982 fps. Alliant AR-Comp gives the best case fill at 100 %, and 23 of the 23 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 2207, Norma 200, Alliant Reloder-7 rank at the top here: for .360 Buckhammer with the .358 | 250gr | Remington SPRN 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.