Load Specifications
Load data in caliber .360 Buckhammer with .358 | 250gr | NorthFork Bonded Core bullet and 19 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 36, Lovex S053 and IMR 4227.
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>> | 98% | 44,875 psi | 90% | 1801 fps | 96.4% |
| Accurate 5744 | <<locked>> | 82% | 44,309 psi | 89% | 1795 fps | 97.5% |
| Accurate No. 11 FS | <<locked>> | 84% | 42,728 psi | 85% | 1765 fps | 99.5% |
| ADI AR 2205 | <<locked>> | 88% | 44,976 psi | 90% | 1729 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 38,537 psi | 77% | 1804 fps | 99% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 41,321 psi | 83% | 1798 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 27,659 psi | 55% | 1063 fps | 100% |
| IMR 4227 | <<locked>> | 96% | 45,049 psi | 90% | 1798 fps | 98.9% |
| Lovex D060 | <<locked>> | 88% | 44,817 psi | 90% | 1801 fps | 97.6% |
| Lovex D063 | <<locked>> | 88% | 44,643 psi | 89% | 1785 fps | 98.1% |
| Lovex S053 | <<locked>> | 98% | 45,121 psi | 90% | 1804 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,122 psi | 54% | 1093 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 96% | 43,453 psi | 87% | 1818 fps | 98.6% |
| Shooters World Blackout | <<locked>> | 84% | 43,729 psi | 87% | 1785 fps | 97.5% |
| Shooters World Buffalo Rifle | <<locked>> | 88% | 44,817 psi | 90% | 1801 fps | 97.6% |
| Shooters World SOCOM | <<locked>> | 88% | 44,643 psi | 89% | 1785 fps | 98.1% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 44,483 psi | 89% | 1699 fps | 100% |
| Vihtavuori N110 | <<locked>> | 90% | 43,366 psi | 87% | 1736 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 39,088 psi | 78% | 1781 fps | 99.7% |
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>> | 94% | 39,784 psi | 80% | 1739 fps | 95.2% |
| Accurate 5744 | <<locked>> | 80% | 41,756 psi | 84% | 1759 fps | 97% |
| Accurate No. 11 FS | <<locked>> | 80% | 37,420 psi | 75% | 1699 fps | 98.8% |
| ADI AR 2205 | <<locked>> | 80% | 35,302 psi | 71% | 1611 fps | 99.5% |
| ADI AR 2207 | <<locked>> | 86% | 25,570 psi | 51% | 1581 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 96% | 36,680 psi | 73% | 1736 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,276 psi | 41% | 948 fps | 100% |
| IMR 4227 | 19.3 gr | 82% | 30,284 psi | 61% | 1588 fps | 95.5% |
| Lovex D060 | <<locked>> | 80% | 35,781 psi | 72% | 1670 fps | 95.3% |
| Lovex D063 | <<locked>> | 80% | 34,301 psi | 69% | 1647 fps | 95.7% |
| Lovex S053 | 18.4 gr | 80% | 27,354 psi | 55% | 1549 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 19,653 psi | 39% | 968 fps | 100% |
| ReloadSwiss RS 36 | 21 gr | 84% | 30,313 psi | 61% | 1627 fps | 95.3% |
| Shooters World Blackout | <<locked>> | 80% | 38,261 psi | 77% | 1709 fps | 96.2% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 35,781 psi | 72% | 1670 fps | 95.3% |
| Shooters World SOCOM | <<locked>> | 80% | 34,301 psi | 69% | 1647 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 26,092 psi | 52% | 1463 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 32,503 psi | 65% | 1601 fps | 100% |
| Vihtavuori N120 | <<locked>> | 82% | 23,438 psi | 47% | 1512 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 19 powders for .360 Buckhammer loaded with the .358 | 250gr | NorthFork Bonded Core. ReloadSwiss RS 36 delivers the highest muzzle velocity at 1,818 fps; across all powders the maximum-charge window runs from 1,063 fps to 1,818 fps. ADI AR 2207 gives the best case fill at 100 %, and 19 of the 19 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (345 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.358" calls for a 1:17.0 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, Lovex S053, IMR 4227 rank at the top here: for .360 Buckhammer with the .358 | 250gr | NorthFork Bonded Core 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.