Load Specifications
Load data in caliber .360 Buckhammer with .358 | 140gr | Hammer Stone Hammer bullet and 7 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, Lovex S040 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 |
|---|---|---|---|---|---|---|
| ADI AR 2205 | <<locked>> | 96% | 42,424 psi | 85% | 2437 fps | 97.1% |
| Hodgdon LilGun | <<locked>> | 92% | 42,395 psi | 85% | 2638 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 24,526 psi | 49% | 1525 fps | 100% |
| Lovex S040 | <<locked>> | 90% | 44,048 psi | 88% | 2490 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 23,960 psi | 48% | 1559 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 32,300 psi | 65% | 2276 fps | 99.8% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 41,147 psi | 82% | 2508 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| ADI AR 2205 | 25.8 gr | 90% | 35,607 psi | 71% | 2313 fps | 95.3% |
| Hodgdon LilGun | 25.1 gr | 80% | 28,210 psi | 56% | 2362 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 17,448 psi | 35% | 1356 fps | 100% |
| Lovex S040 | 21.5 gr | 80% | 32,808 psi | 66% | 2282 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 16,911 psi | 34% | 1389 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 18,913 psi | 38% | 1926 fps | 95.8% |
| Vihtavuori N110 | <<locked>> | 80% | 22,495 psi | 45% | 2102 fps | 96.1% |
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 11 powders for .360 Buckhammer loaded with the .358 | 140gr | Hammer Stone Hammer. Hodgdon LilGun delivers the highest muzzle velocity at 2,638 fps; across all powders the maximum-charge window runs from 1,525 fps to 2,638 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 11 of the 11 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (345 MPa), the top charges use 48–90 %, leaving at least 10 % 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, Lovex S040, ADI AR 2205 rank at the top here: for .360 Buckhammer with the .358 | 140gr | Hammer Stone Hammer they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Lovex D060, Lovex S053, Shooters World Buffalo Rifle burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.