Load Specifications
Load data in caliber .300 AAC Blackout with .308 | 100gr | Lapua OT Cutting Edge bullet and 5 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 Vihtavuori N110.
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 |
|---|---|---|---|---|---|---|
| Hodgdon LilGunᴾ | <<locked>> | 100% | 43,656 psi | 86% | 2375 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 22,191 psi | 44% | 1345 fps | 100% |
| Lovex S040 | <<locked>> | 96% | 43,976 psi | 87% | 2211 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 21,074 psi | 42% | 1368 fps | 100% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 32,111 psi | 63% | 2080 fps | 95.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Hodgdon LilGun | 16.3 gr | 88% | 29,269 psi | 58% | 2110 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 16,070 psi | 32% | 1198 fps | 100% |
| Lovex S040 | 14 gr | 88% | 35,244 psi | 69% | 2067 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 15,418 psi | 30% | 1220 fps | 100% |
| Vihtavuori N110 | 14.9 gr | 98% | 30,385 psi | 60% | 2047 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 5 powders for .300 AAC Blackout loaded with the .308 | 100gr | Lapua OT Cutting Edge. Hodgdon LilGun delivers the highest muzzle velocity at 2,375 fps; across all powders the maximum-charge window runs from 1,345 fps to 2,375 fps. Hodgdon LilGun gives the best case fill at 100 %, and 5 of the 5 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (350 MPa), the top charges use 42–87 %, leaving at least 13 % headroom. Hodgdon LilGun, 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. Hodgdon LilGun, Lovex S040, Vihtavuori N110 rank at the top here: for .300 AAC Blackout with the .308 | 100gr | Lapua OT Cutting Edge 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.