Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 180gr | Swift Scirocco bullet and 29 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD 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>> | 90% | 40,118 psi | 86% | 2654 fps | 98.2% |
| Accurate 4350 | <<locked>> | 82% | 41,669 psi | 90% | 2697 fps | 99.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 36,593 psi | 79% | 2674 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 82% | 40,205 psi | 87% | 2707 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 40,785 psi | 88% | 2733 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 40,480 psi | 87% | 2762 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 88% | 39,363 psi | 85% | 2776 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 40,219 psi | 87% | 2644 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,622 psi | 79% | 1795 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 40,741 psi | 88% | 2631 fps | 96.9% |
| IMR 4831 | <<locked>> | 82% | 39,871 psi | 86% | 2648 fps | 99.3% |
| Lovex S071 | <<locked>> | 96% | 41,234 psi | 89% | 2674 fps | 98.5% |
| Norma MRP | <<locked>> | 88% | 39,363 psi | 85% | 2740 fps | 97.1% |
| Norma URP | <<locked>> | 82% | 41,162 psi | 89% | 2687 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 82% | 40,030 psi | 86% | 2680 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 94% | 39,305 psi | 85% | 2694 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,347 psi | 80% | 1837 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 41,408 psi | 89% | 2717 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 39,958 psi | 86% | 2726 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 41,974 psi | 90% | 2844 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 88% | 41,553 psi | 90% | 2710 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,162 psi | 89% | 2707 fps | 96.2% |
| Somchem S365 | <<locked>> | 84% | 40,205 psi | 87% | 2697 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 39,537 psi | 85% | 2638 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 92% | 41,611 psi | 90% | 2671 fps | 96.7% |
| Vihtavuori N555 | <<locked>> | 88% | 40,001 psi | 86% | 2703 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 41,742 psi | 90% | 2651 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 41,814 psi | 90% | 2894 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,524 psi | 89% | 2677 fps | 96% |
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>> | 82% | 30,647 psi | 66% | 2431 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 38,870 psi | 84% | 2641 fps | 99.1% |
| ADI AR 2225 | <<locked>> | 98% | 34,316 psi | 74% | 2612 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,579 psi | 81% | 2648 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,717 psi | 60% | 2408 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,430 psi | 68% | 2533 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 29,530 psi | 64% | 2520 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,331 psi | 76% | 2543 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,369 psi | 59% | 1601 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,319 psi | 83% | 2579 fps | 96.2% |
| IMR 4831 | <<locked>> | 80% | 37,260 psi | 80% | 2589 fps | 98.9% |
| Lovex S071 | <<locked>> | 88% | 31,937 psi | 69% | 2467 fps | 95.7% |
| Norma MRP | <<locked>> | 84% | 34,316 psi | 74% | 2615 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 38,435 psi | 83% | 2631 fps | 99% |
| Ramshot Hunter | <<locked>> | 80% | 37,304 psi | 80% | 2618 fps | 97.4% |
| Ramshot Magnum | <<locked>> | 92% | 36,695 psi | 79% | 2631 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,934 psi | 60% | 1640 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,537 psi | 83% | 2657 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,420 psi | 81% | 2667 fps | 98.5% |
| ReloadSwiss RS 76 | 75 gr | 94% | 36,521 psi | 79% | 2707 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 86% | 38,827 psi | 84% | 2651 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 38,464 psi | 83% | 2648 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 35,070 psi | 76% | 2592 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 36,999 psi | 80% | 2582 fps | 95.7% |
| Vihtavuori N165 | <<locked>> | 88% | 36,405 psi | 78% | 2562 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 80% | 30,647 psi | 66% | 2484 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,972 psi | 84% | 2598 fps | 100% |
| Winchester StaBALL HD | 61.2 gr | 80% | 24,468 psi | 53% | 2385 fps | 96.6% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,812 psi | 84% | 2618 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 53 powders for .30 Super Fl. H&H loaded with the .308 | 180gr | Swift Scirocco. Winchester StaBALL HD delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,795 fps to 2,894 fps. ADI AR 2217 gives the best case fill at 100 %, and 53 of the 53 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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 | 180gr | Swift Scirocco they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, ADI AR 2217 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.