Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 165gr | Woodleigh PP SN bullet and 21 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, ReloadSwiss RS 76 and Alliant Reloder-26.
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% | 40,770 psi | 88% | 2785 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 40,611 psi | 88% | 2841 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 92% | 41,379 psi | 89% | 2871 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 41,075 psi | 89% | 2897 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 88% | 40,147 psi | 87% | 2913 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 40,741 psi | 88% | 2779 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,477 psi | 79% | 1900 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 41,162 psi | 89% | 2762 fps | 96.5% |
| IMR 4831 | <<locked>> | 82% | 40,335 psi | 87% | 2779 fps | 99.1% |
| Lovex S071 | <<locked>> | 96% | 41,814 psi | 90% | 2808 fps | 98.2% |
| Norma MRP | <<locked>> | 88% | 39,784 psi | 86% | 2871 fps | 96.7% |
| Norma URP | <<locked>> | 82% | 41,655 psi | 90% | 2822 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 82% | 40,393 psi | 87% | 2808 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 80% | 1949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 41,858 psi | 90% | 2848 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 40,567 psi | 87% | 2864 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,711 psi | 86% | 2904 fps | 96.8% |
| Somchem S365 | <<locked>> | 84% | 40,727 psi | 88% | 2835 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 40,030 psi | 86% | 2769 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 88% | 40,611 psi | 88% | 2835 fps | 99.5% |
| Winchester StaBALL HD | <<locked>> | 94% | 39,610 psi | 85% | 2969 fps | 100% |
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>> | 84% | 33,214 psi | 72% | 2608 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,000 psi | 82% | 2779 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,021 psi | 60% | 2523 fps | 97% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,763 psi | 68% | 2651 fps | 95.4% |
| Alliant Reloder-26 | 68.8 gr | 80% | 30,008 psi | 65% | 2638 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,607 psi | 77% | 2667 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,398 psi | 59% | 1703 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,566 psi | 83% | 2707 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 37,724 psi | 81% | 2720 fps | 98.6% |
| Lovex S071 | <<locked>> | 88% | 32,387 psi | 70% | 2585 fps | 95.2% |
| Norma MRP | <<locked>> | 86% | 37,217 psi | 80% | 2805 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 38,972 psi | 84% | 2766 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 80% | 37,840 psi | 82% | 2749 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,891 psi | 60% | 1742 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,001 psi | 84% | 2785 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,840 psi | 82% | 2799 fps | 98.1% |
| ReloadSwiss RS 76 | 80.9 gr | 94% | 37,072 psi | 80% | 2835 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 35,360 psi | 76% | 2717 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 37,463 psi | 81% | 2710 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 80% | 31,024 psi | 67% | 2605 fps | 97.1% |
| Winchester StaBALL HD | 66.1 gr | 80% | 24,801 psi | 53% | 2493 fps | 95.8% |
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 21 powders for .30 Super Fl. H&H loaded with the .308 | 165gr | Woodleigh PP SN. Winchester StaBALL HD delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,900 fps to 2,969 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 21 of the 21 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 79–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. 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. Winchester StaBALL HD, ReloadSwiss RS 76, Alliant Reloder-26 rank at the top here: for .30 Super Fl. H&H with the .308 | 165gr | Woodleigh PP SN 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.