Load Specifications
Load data in caliber .360 Buckhammer with .358 | 180gr | Speer Hot-Cor bullet and 15 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 36, IMR 4227 and Lovex S053.
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 No. 11 FS | <<locked>> | 86% | 43,743 psi | 87% | 2247 fps | 98.5% |
| ADI AR 2205 | <<locked>> | 88% | 43,497 psi | 87% | 2169 fps | 99.6% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 36,883 psi | 74% | 2238 fps | 97% |
| Hodgdon LilGun | <<locked>> | 82% | 43,787 psi | 88% | 2297 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 27,398 psi | 55% | 1375 fps | 100% |
| IMR 4227 | <<locked>> | 96% | 43,874 psi | 88% | 2251 fps | 97.2% |
| Lovex D063 | <<locked>> | 86% | 45,136 psi | 90% | 2267 fps | 95.9% |
| Lovex S053 | <<locked>> | 98% | 43,758 psi | 88% | 2260 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 26,629 psi | 53% | 1404 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 98% | 44,063 psi | 88% | 2297 fps | 97.1% |
| Shooters World Blackout | <<locked>> | 86% | 45,136 psi | 90% | 2267 fps | 95.9% |
| Shooters World SOCOM | <<locked>> | 88% | 43,105 psi | 86% | 2224 fps | 96% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 42,453 psi | 85% | 2142 fps | 100% |
| Vihtavuori N110 | <<locked>> | 92% | 44,092 psi | 88% | 2221 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 37,463 psi | 75% | 2215 fps | 98.2% |
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 No. 11 FS | <<locked>> | 80% | 35,868 psi | 72% | 2113 fps | 96.9% |
| ADI AR 2205 | <<locked>> | 80% | 34,403 psi | 69% | 2018 fps | 98.2% |
| ADI AR 2207 | <<locked>> | 94% | 31,096 psi | 62% | 2116 fps | 95.1% |
| Hodgdon LilGun | <<locked>> | 80% | 40,828 psi | 82% | 2254 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 19,769 psi | 40% | 1220 fps | 100% |
| IMR 4227 | 27.3 gr | 90% | 36,463 psi | 73% | 2126 fps | 95.3% |
| Lovex D063 | <<locked>> | 84% | 42,250 psi | 84% | 2221 fps | 95.1% |
| Lovex S053 | 23.8 gr | 80% | 26,208 psi | 52% | 1923 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 19,348 psi | 39% | 1250 fps | 100% |
| ReloadSwiss RS 36 | 29.7 gr | 92% | 36,869 psi | 74% | 2178 fps | 95.3% |
| Shooters World Blackout | <<locked>> | 84% | 42,250 psi | 84% | 2221 fps | 95.1% |
| Shooters World SOCOM | <<locked>> | 86% | 40,335 psi | 81% | 2178 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 25,150 psi | 50% | 1841 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 30,893 psi | 62% | 2005 fps | 100% |
| Vihtavuori N120 | <<locked>> | 90% | 28,123 psi | 56% | 2018 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 15 powders for .360 Buckhammer loaded with the .358 | 180gr | Speer Hot-Cor. Hodgdon LilGun delivers the highest muzzle velocity at 2,297 fps; across all powders the maximum-charge window runs from 1,375 fps to 2,297 fps. ADI AR 2207 gives the best case fill at 100 %, and 15 of the 15 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (345 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. ADI AR 2207, Hodgdon TrailBoss, ReloadSwiss RS 14 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, IMR 4227, Lovex S053 rank at the top here: for .360 Buckhammer with the .358 | 180gr | Speer Hot-Cor they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.