Load Specifications
Load data in caliber .360 Buckhammer with .357 | 140gr | Lehigh Defense Xtreme Penetrator bullet and 9 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, Vihtavuori N110 and ADI AR 2205.
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>> | 92% | 44,338 psi | 89% | 2582 fps | 96.3% |
| ADI AR 2205 | <<locked>> | 94% | 44,367 psi | 89% | 2503 fps | 98.1% |
| Hodgdon LilGun | <<locked>> | 88% | 42,989 psi | 86% | 2657 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 25,019 psi | 50% | 1572 fps | 100% |
| Lovex S040 | <<locked>> | 86% | 43,192 psi | 86% | 2503 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 38,145 psi | 76% | 2497 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 23,946 psi | 48% | 1601 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 35,389 psi | 71% | 2369 fps | 100% |
| Vihtavuori N110 | <<locked>> | 98% | 43,105 psi | 86% | 2562 fps | 100% |
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>> | 90% | 41,234 psi | 82% | 2530 fps | 95.5% |
| ADI AR 2205 | 28 gr | 84% | 32,880 psi | 66% | 2283 fps | 95.1% |
| Hodgdon LilGun | 29.1 gr | 80% | 32,300 psi | 65% | 2457 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 17,854 psi | 36% | 1398 fps | 100% |
| Lovex S040 | <<locked>> | 80% | 36,332 psi | 73% | 2379 fps | 99.4% |
| Lovex S053 | <<locked>> | 96% | 33,852 psi | 68% | 2408 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 17,216 psi | 34% | 1427 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 20,610 psi | 41% | 2001 fps | 97.2% |
| Vihtavuori N110 | 24 gr | 80% | 25,135 psi | 50% | 2182 fps | 97.5% |
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 9 powders for .360 Buckhammer loaded with the .357 | 140gr | Lehigh Defense Xtreme Penetrator. Hodgdon LilGun delivers the highest muzzle velocity at 2,657 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,657 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 9 of the 9 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (345 MPa), the top charges use 48–89 %, leaving at least 11 % headroom. Hodgdon TrailBoss, Lovex S053, 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. Hodgdon LilGun, Vihtavuori N110, ADI AR 2205 rank at the top here: for .360 Buckhammer with the .357 | 140gr | Lehigh Defense Xtreme Penetrator 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.