Load Specifications
Load data in caliber .300 HAM'R with .308 | 85gr | MAKER Tipped expanding bullet and 10 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun, Accurate No. 11 FS and Lovex S040.
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: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 11 FS | <<locked>> | 96% | 50,705 psi | 88% | 2657 fps | 97.6% |
| ADI APS 450 | <<locked>> | 82% | 50,314 psi | 88% | 1978 fps | 100% |
| ADI AR 2205 | <<locked>> | 98% | 50,430 psi | 88% | 2575 fps | 99% |
| Hodgdon LilGun | <<locked>> | 92% | 49,226 psi | 86% | 2713 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 22,510 psi | 39% | 1542 fps | 100% |
| Lovex S040 | <<locked>> | 90% | 48,385 psi | 84% | 2562 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 37,014 psi | 64% | 2448 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,726 psi | 36% | 1565 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 34,592 psi | 60% | 2329 fps | 100% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 44,875 psi | 78% | 2562 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 11 FS | 21.6 gr | 90% | 40,944 psi | 71% | 2497 fps | 95.5% |
| ADI APS 450 | <<locked>> | 80% | 48,747 psi | 85% | 1959 fps | 100% |
| ADI AR 2205 | <<locked>> | 86% | 33,489 psi | 58% | 2280 fps | 95.3% |
| Hodgdon LilGun | 19.3 gr | 80% | 30,327 psi | 53% | 2379 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 15,403 psi | 27% | 1368 fps | 100% |
| Lovex S040 | 16.6 gr | 80% | 35,186 psi | 61% | 2336 fps | 99.3% |
| Lovex S053 | <<locked>> | 96% | 32,663 psi | 57% | 2356 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 13,663 psi | 24% | 1378 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 18,347 psi | 32% | 1916 fps | 95.6% |
| Vihtavuori N110 | <<locked>> | 80% | 22,437 psi | 39% | 2087 fps | 96% |
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 10 powders for .300 HAM'R loaded with the .308 | 85gr | MAKER Tipped expanding. Hodgdon LilGun delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,542 fps to 2,713 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 10 of the 10 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (396 MPa), the top charges use 36–88 %, leaving at least 12 % 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, Accurate No. 11 FS, Lovex S040 rank at the top here: for .300 HAM'R with the .308 | 85gr | MAKER Tipped expanding 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.