Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 175gr | Barnes Match Burner BT bullet and 28 powders. The key underlying parameters are shown in the table above.
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% | 40,234 psi | 87% | 2694 fps | 98.1% |
| Accurate 4350 | <<locked>> | 82% | 41,640 psi | 90% | 2736 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 82% | 40,219 psi | 87% | 2746 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 40,901 psi | 88% | 2776 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 40,611 psi | 88% | 2805 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 88% | 39,552 psi | 85% | 2822 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 40,379 psi | 87% | 2687 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,608 psi | 79% | 1827 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 40,872 psi | 88% | 2674 fps | 96.8% |
| IMR 4831 | <<locked>> | 82% | 39,856 psi | 86% | 2684 fps | 99.2% |
| Lovex S071 | <<locked>> | 96% | 41,365 psi | 89% | 2717 fps | 98.4% |
| Norma MRP | <<locked>> | 88% | 39,421 psi | 85% | 2779 fps | 96.9% |
| Norma URP | <<locked>> | 82% | 41,321 psi | 89% | 2730 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 82% | 40,089 psi | 86% | 2720 fps | 98% |
| Ramshot Magnum | <<locked>> | 94% | 39,494 psi | 85% | 2736 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 80% | 1870 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 41,452 psi | 89% | 2756 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 40,118 psi | 86% | 2769 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,233 psi | 85% | 2815 fps | 97% |
| Rottweil R 905 | <<locked>> | 88% | 41,727 psi | 90% | 2756 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,350 psi | 89% | 2749 fps | 96% |
| Somchem S365 | <<locked>> | 84% | 40,335 psi | 87% | 2743 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 39,697 psi | 86% | 2680 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 92% | 41,684 psi | 90% | 2713 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 88% | 40,219 psi | 87% | 2746 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 41,901 psi | 90% | 2694 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 41,858 psi | 90% | 2936 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,785 psi | 90% | 2720 fps | 95.9% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 32,909 psi | 71% | 2526 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 38,928 psi | 84% | 2680 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,666 psi | 81% | 2690 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,775 psi | 60% | 2444 fps | 97.4% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,444 psi | 68% | 2566 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 29,718 psi | 64% | 2559 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,273 psi | 76% | 2579 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,398 psi | 59% | 1634 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,392 psi | 83% | 2621 fps | 96% |
| IMR 4831 | <<locked>> | 80% | 37,333 psi | 80% | 2631 fps | 98.8% |
| Lovex S071 | <<locked>> | 88% | 32,053 psi | 69% | 2503 fps | 95.5% |
| Norma MRP | <<locked>> | 84% | 34,316 psi | 74% | 2654 fps | 95% |
| Norma URP | <<locked>> | 80% | 38,682 psi | 83% | 2677 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 80% | 37,434 psi | 81% | 2661 fps | 97.2% |
| Ramshot Magnum | <<locked>> | 92% | 36,796 psi | 79% | 2671 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,934 psi | 60% | 1673 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,624 psi | 83% | 2700 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,449 psi | 81% | 2710 fps | 98.3% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,651 psi | 79% | 2746 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 86% | 39,073 psi | 84% | 2697 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 38,711 psi | 83% | 2690 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 35,128 psi | 76% | 2631 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 37,057 psi | 80% | 2621 fps | 95.5% |
| Vihtavuori N165 | <<locked>> | 90% | 39,015 psi | 84% | 2657 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 80% | 30,719 psi | 66% | 2520 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,030 psi | 84% | 2638 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,555 psi | 53% | 2418 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,899 psi | 84% | 2657 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 28 powders for .30 Super Fl. H&H loaded with the .308 | 175gr | Barnes Match Burner BT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,936 fps; across all powders the maximum-charge window runs from 1,827 fps to 2,936 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 28 of the 28 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 175.0 gr projectile in 0.308" calls for a 1:12.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.