Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 185gr | Lapua Mega bullet and 31 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Hodgdon Retumbo and ReloadSwiss RS 76.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 88% | 41,814 psi | 90% | 2667 fps | 99% |
| ADI AR 2209 | <<locked>> | 84% | 40,973 psi | 88% | 2687 fps | 96.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,611 psi | 88% | 2766 fps | 98.6% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 41,379 psi | 89% | 2690 fps | 96.8% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 41,379 psi | 89% | 2690 fps | 96.8% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,959 psi | 88% | 2680 fps | 96.7% |
| Alliant Reloder-22 | <<locked>> | 88% | 41,582 psi | 90% | 2740 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 39,900 psi | 86% | 2690 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 39,305 psi | 85% | 2720 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 86% | 41,292 psi | 89% | 2795 fps | 99.8% |
| Bofors RP15 | <<locked>> | 90% | 41,205 psi | 89% | 2730 fps | 96.8% |
| Bofors RP30 | <<locked>> | 96% | 41,089 psi | 89% | 2759 fps | 96.2% |
| Bofors RP5 | <<locked>> | 88% | 41,582 psi | 90% | 2740 fps | 97.1% |
| Hodgdon H1000 | <<locked>> | 94% | 41,191 psi | 89% | 2717 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 41,539 psi | 90% | 2644 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 41,075 psi | 89% | 2815 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,927 psi | 80% | 1801 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 40,437 psi | 87% | 2641 fps | 98.8% |
| Norma 217ᴾ | <<locked>> | 100% | 36,158 psi | 78% | 2690 fps | 96.6% |
| Norma MRP | <<locked>> | 86% | 40,944 psi | 88% | 2756 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 92% | 40,944 psi | 88% | 2717 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,681 psi | 81% | 1844 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 40,698 psi | 88% | 2805 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 84% | 40,205 psi | 87% | 2664 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,842 psi | 86% | 2661 fps | 96.5% |
| Somchem S365 | <<locked>> | 82% | 41,916 psi | 90% | 2700 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 40,770 psi | 88% | 2648 fps | 97.6% |
| Vihtavuori N165 | <<locked>> | 88% | 40,350 psi | 87% | 2631 fps | 97.1% |
| Vihtavuori N555 | <<locked>> | 86% | 41,916 psi | 90% | 2717 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 41,278 psi | 89% | 2851 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,987 psi | 86% | 2631 fps | 96.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 31,821 psi | 69% | 2441 fps | 96.4% |
| ADI AR 2209 | <<locked>> | 82% | 38,493 psi | 83% | 2628 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 94% | 33,504 psi | 72% | 2585 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,201 psi | 78% | 2572 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,201 psi | 78% | 2572 fps | 95% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,348 psi | 83% | 2625 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,361 psi | 78% | 2618 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,661 psi | 66% | 2477 fps | 99.1% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,616 psi | 62% | 2434 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,127 psi | 71% | 2605 fps | 98.3% |
| Bofors RP15 | <<locked>> | 86% | 36,187 psi | 78% | 2615 fps | 95% |
| Bofors RP30 | <<locked>> | 94% | 38,435 psi | 83% | 2700 fps | 95.2% |
| Bofors RP5 | <<locked>> | 84% | 36,361 psi | 78% | 2618 fps | 95.3% |
| Hodgdon H1000 | <<locked>> | 92% | 38,537 psi | 83% | 2654 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,928 psi | 84% | 2595 fps | 100% |
| Hodgdon Retumbo | 71.6 gr | 90% | 36,056 psi | 78% | 2687 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 59% | 1608 fps | 100% |
| Lovex S071 | <<locked>> | 82% | 29,341 psi | 63% | 2375 fps | 95.3% |
| Norma 217 | <<locked>> | 98% | 33,823 psi | 73% | 2628 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 33,156 psi | 71% | 2569 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 88% | 35,346 psi | 76% | 2589 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,268 psi | 61% | 1650 fps | 100% |
| ReloadSwiss RS 76 | 75 gr | 88% | 33,011 psi | 71% | 2602 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 82% | 37,565 psi | 81% | 2608 fps | 95.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,217 psi | 80% | 2602 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 39,073 psi | 84% | 2648 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,752 psi | 77% | 2536 fps | 96.1% |
| Vihtavuori N165 | <<locked>> | 84% | 35,302 psi | 76% | 2520 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 80% | 34,287 psi | 74% | 2549 fps | 99.1% |
| Winchester StaBALL HD | 65.4 gr | 80% | 27,137 psi | 58% | 2477 fps | 99.1% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,318 psi | 80% | 2572 fps | 95.5% |
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 31 powders for .30 Super Fl. H&H loaded with the .308 | 185gr | Lapua Mega. Winchester StaBALL HD delivers the highest muzzle velocity at 2,851 fps; across all powders the maximum-charge window runs from 1,801 fps to 2,851 fps. ADI AR 2225 gives the best case fill at 100 %, and 31 of the 31 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 78–90 %, leaving at least 10 % headroom. The 185.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Hodgdon TrailBoss, Norma 217 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. Winchester StaBALL HD, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for .30 Super Fl. H&H with the .308 | 185gr | Lapua Mega 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.