Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 155gr | Norma GTX bullet and 26 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Alliant Reloder-26 and Vihtavuori N555.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 40,509 psi | 87% | 2851 fps | 97.2% |
| Accurate 4350 | <<locked>> | 82% | 39,233 psi | 85% | 2848 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 40,611 psi | 88% | 2917 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 40,973 psi | 88% | 2940 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 98% | 40,857 psi | 88% | 2963 fps | 98.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 39,769 psi | 86% | 2979 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 82% | 41,336 psi | 89% | 2897 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 40,567 psi | 87% | 2854 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,260 psi | 78% | 1949 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 40,176 psi | 87% | 2851 fps | 98.6% |
| Lovex S070 | <<locked>> | 82% | 40,480 psi | 87% | 2822 fps | 96.3% |
| Lovex S071 | <<locked>> | 98% | 41,379 psi | 89% | 2871 fps | 97.4% |
| Norma URP | <<locked>> | 84% | 41,568 psi | 90% | 2900 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 84% | 40,422 psi | 87% | 2884 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,883 psi | 79% | 1995 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 41,771 psi | 90% | 2927 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 40,698 psi | 88% | 2940 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 82% | 40,480 psi | 87% | 2822 fps | 96.3% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,466 psi | 89% | 2782 fps | 96.4% |
| Somchem S365 | <<locked>> | 86% | 40,524 psi | 87% | 2913 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 40,495 psi | 87% | 2841 fps | 98.4% |
| Vihtavuori N550 | <<locked>> | 82% | 39,914 psi | 86% | 2841 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 90% | 40,205 psi | 87% | 2907 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 39,682 psi | 86% | 2808 fps | 99.7% |
| Winchester 760 | <<locked>> | 82% | 41,336 psi | 89% | 2897 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 96% | 39,334 psi | 85% | 3035 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>> | 88% | 35,244 psi | 76% | 2730 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 36,564 psi | 79% | 2782 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,795 psi | 77% | 2795 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,934 psi | 60% | 2585 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,779 psi | 73% | 2772 fps | 95.3% |
| Alliant Reloder-26 | 71.3 gr | 84% | 32,039 psi | 69% | 2769 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 38,479 psi | 83% | 2828 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,199 psi | 72% | 2680 fps | 98.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,108 psi | 58% | 1745 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 35,230 psi | 76% | 2733 fps | 97.3% |
| Lovex S070 | <<locked>> | 80% | 37,913 psi | 82% | 2759 fps | 95.4% |
| Lovex S071 | <<locked>> | 94% | 36,347 psi | 78% | 2756 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 36,405 psi | 78% | 2779 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 80% | 35,375 psi | 76% | 2762 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,572 psi | 59% | 1788 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,260 psi | 78% | 2799 fps | 97.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,360 psi | 76% | 2802 fps | 96.4% |
| Shooters World SW4350 | <<locked>> | 80% | 37,913 psi | 82% | 2759 fps | 95.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,827 psi | 84% | 2723 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 32,938 psi | 71% | 2733 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 37,797 psi | 81% | 2779 fps | 97.8% |
| Vihtavuori N550 | <<locked>> | 80% | 37,347 psi | 80% | 2782 fps | 97.5% |
| Vihtavuori N555 | 62 gr | 80% | 28,703 psi | 62% | 2608 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,057 psi | 80% | 2746 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 38,653 psi | 83% | 2835 fps | 95.5% |
| Winchester StaBALL HD | 68.5 gr | 84% | 26,339 psi | 57% | 2612 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 26 powders for .30 Super Fl. H&H loaded with the .308 | 155gr | Norma GTX. Winchester StaBALL HD delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,949 fps to 3,035 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 26 of the 26 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 155.0 gr projectile in 0.308" calls for a 1:13.5 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, Alliant Reloder-26, Vihtavuori N555 rank at the top here: for .30 Super Fl. H&H with the .308 | 155gr | Norma GTX 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.