Load Specifications
Load data in caliber .300 AAC Blackout with .308 | 100gr | CutEdge ESP Raptor bullet and 4 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LilGun 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 |
|---|---|---|---|---|---|---|
| Hodgdon LilGunᴾ | <<locked>> | 100% | 40,596 psi | 80% | 2323 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,437 psi | 42% | 1335 fps | 100% |
| Lovex S040 | <<locked>> | 98% | 45,034 psi | 89% | 2221 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,160 psi | 40% | 1358 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 |
|---|---|---|---|---|---|---|
| Hodgdon LilGun | 16.6 gr | 92% | 31,067 psi | 61% | 2152 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 15,200 psi | 30% | 1184 fps | 100% |
| Lovex S040 | 13.9 gr | 90% | 35,157 psi | 69% | 2064 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 14,475 psi | 29% | 1207 fps | 100% |
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 4 powders for .300 AAC Blackout loaded with the .308 | 100gr | CutEdge ESP Raptor. Hodgdon LilGun delivers the highest muzzle velocity at 2,323 fps; across all powders the maximum-charge window runs from 1,335 fps to 2,323 fps. Hodgdon LilGun gives the best case fill at 100 %, and 4 of the 4 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (350 MPa), the top charges use 40–89 %, leaving at least 11 % 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 | CutEdge ESP Raptor 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.