Load Specifications
Load data in caliber .300 AAC Blackout with .311 | 90gr | Inceptor SRR bullet and 5 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 14, 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| ADI APS 450 | <<locked>> | 82% | 44,918 psi | 88% | 1785 fps | 100% |
| Hodgdon LilGunᴾ | <<locked>> | 100% | 37,057 psi | 73% | 2385 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 20,044 psi | 39% | 1394 fps | 100% |
| Lovex S040ᴾ | <<locked>> | 100% | 44,019 psi | 87% | 2326 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 19,276 psi | 38% | 1430 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 |
|---|---|---|---|---|---|---|
| ADI APS 450 | <<locked>> | 80% | 43,990 psi | 87% | 1772 fps | 100% |
| Hodgdon LilGun | 18 gr | 98% | 35,056 psi | 69% | 2343 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 14,663 psi | 29% | 1250 fps | 100% |
| Lovex S040 | 15.1 gr | 96% | 39,421 psi | 78% | 2251 fps | 95.3% |
| ReloadSwiss RS 14 | 4.8 gr | 80% | 13,503 psi | 27% | 1260 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 5 powders for .300 AAC Blackout loaded with the .311 | 90gr | Inceptor SRR. Hodgdon LilGun delivers the highest muzzle velocity at 2,385 fps; across all powders the maximum-charge window runs from 1,394 fps to 2,385 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 38–88 %, leaving at least 12 % headroom. The 90.0 gr projectile in 0.311" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Hodgdon LilGun, Hodgdon TrailBoss, Lovex S040 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. ReloadSwiss RS 14, Hodgdon LilGun, Lovex S040 rank at the top here: for .300 AAC Blackout with the .311 | 90gr | Inceptor SRR 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.