Load Specifications
Load data in caliber .360 Buckhammer with .358 | 225gr | Alaska Bullet Works Kodiak SP SPBC 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, 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>> | 96% | 44,048 psi | 88% | 1959 fps | 96.2% |
| Accurate No. 11 FS | <<locked>> | 84% | 43,845 psi | 88% | 1949 fps | 99.6% |
| ADI AR 2205 | <<locked>> | 86% | 43,656 psi | 87% | 1880 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 40,103 psi | 80% | 1995 fps | 99.2% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 43,337 psi | 87% | 1995 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,094 psi | 56% | 1181 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 37,536 psi | 75% | 1900 fps | 95.6% |
| IMR 4227 | <<locked>> | 94% | 44,092 psi | 88% | 1955 fps | 98.7% |
| Lovex D060 | <<locked>> | 86% | 43,845 psi | 88% | 1959 fps | 97.3% |
| Lovex D063 | <<locked>> | 86% | 43,047 psi | 86% | 1936 fps | 97.7% |
| Lovex S053 | <<locked>> | 96% | 44,773 psi | 90% | 1969 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 36,796 psi | 74% | 1952 fps | 95.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,470 psi | 55% | 1207 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 96% | 45,078 psi | 90% | 2011 fps | 98.8% |
| Shooters World Blackout | <<locked>> | 84% | 45,150 psi | 90% | 1972 fps | 97.7% |
| Shooters World Buffalo Rifle | <<locked>> | 86% | 43,845 psi | 88% | 1959 fps | 97.3% |
| Shooters World SOCOM | <<locked>> | 86% | 43,047 psi | 86% | 1936 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 98% | 43,584 psi | 87% | 1854 fps | 100% |
| Vihtavuori N110 | <<locked>> | 90% | 44,788 psi | 90% | 1916 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 40,611 psi | 81% | 1972 fps | 99.8% |
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% | 41,350 psi | 83% | 1923 fps | 95.5% |
| Accurate No. 11 FS | <<locked>> | 80% | 38,682 psi | 77% | 1877 fps | 98.9% |
| ADI AR 2205 | <<locked>> | 80% | 36,492 psi | 73% | 1781 fps | 99.6% |
| ADI AR 2207 | <<locked>> | 86% | 26,760 psi | 54% | 1755 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 94% | 36,201 psi | 72% | 1890 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,436 psi | 41% | 1050 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 35,679 psi | 71% | 1870 fps | 95% |
| IMR 4227 | 22.1 gr | 82% | 31,125 psi | 62% | 1752 fps | 95.6% |
| Lovex D060 | <<locked>> | 80% | 36,651 psi | 73% | 1847 fps | 95.5% |
| Lovex D063 | <<locked>> | 80% | 35,607 psi | 71% | 1824 fps | 95.9% |
| Lovex S053 | 21.1 gr | 80% | 28,282 psi | 57% | 1709 fps | 98.1% |
| Norma 200 | <<locked>> | 98% | 34,490 psi | 69% | 1916 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,117 psi | 40% | 1079 fps | 100% |
| ReloadSwiss RS 36 | 24.1 gr | 84% | 31,459 psi | 63% | 1801 fps | 95.6% |
| Shooters World Blackout | <<locked>> | 80% | 39,769 psi | 80% | 1896 fps | 96.5% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 36,651 psi | 73% | 1847 fps | 95.5% |
| Shooters World SOCOM | <<locked>> | 80% | 35,607 psi | 71% | 1824 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 27,006 psi | 54% | 1617 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 33,663 psi | 67% | 1768 fps | 100% |
| Vihtavuori N120 | <<locked>> | 82% | 24,308 psi | 49% | 1673 fps | 95.6% |
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 | 225gr | Alaska Bullet Works Kodiak SP SPBC. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,011 fps; across all powders the maximum-charge window runs from 1,181 fps to 2,011 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 55–90 %, leaving at least 10 % headroom. The 225.0 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, Lovex S053, IMR 4227 rank at the top here: for .360 Buckhammer with the .358 | 225gr | Alaska Bullet Works Kodiak SP SPBC 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.