Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 150gr | Norma Kalahari 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.
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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 41,060 psi | 88% | 2900 fps | 96.9% |
| Accurate 4350 | <<locked>> | 84% | 39,929 psi | 86% | 2900 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 86% | 41,423 psi | 89% | 2969 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 82% | 41,423 psi | 89% | 2989 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 41,611 psi | 90% | 2989 fps | 99.7% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,437 psi | 89% | 3005 fps | 97.7% |
| Alliant Reloder-26 | <<locked>> | 92% | 40,509 psi | 87% | 3031 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 41,321 psi | 89% | 2907 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,172 psi | 78% | 1972 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 40,901 psi | 88% | 2904 fps | 98.4% |
| Lovex S065 | <<locked>> | 82% | 40,625 psi | 88% | 2841 fps | 97% |
| Lovex S070 | <<locked>> | 84% | 41,278 psi | 89% | 2874 fps | 96% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,843 psi | 90% | 2917 fps | 97.1% |
| Norma URP | <<locked>> | 84% | 39,682 psi | 86% | 2894 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 86% | 41,176 psi | 89% | 2936 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,782 psi | 79% | 2018 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 39,639 psi | 85% | 2917 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 41,582 psi | 90% | 2992 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 40,625 psi | 88% | 2841 fps | 97% |
| Shooters World SW4350 | <<locked>> | 84% | 41,278 psi | 89% | 2874 fps | 96% |
| Somchem S365 | <<locked>> | 88% | 40,959 psi | 88% | 2963 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 41,234 psi | 89% | 2894 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 84% | 40,669 psi | 88% | 2894 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 92% | 40,625 psi | 88% | 2956 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 40,741 psi | 88% | 2864 fps | 99.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 40,001 psi | 86% | 3087 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>> | 90% | 35,795 psi | 77% | 2776 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 34,679 psi | 75% | 2772 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,229 psi | 74% | 2785 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,508 psi | 83% | 2923 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,369 psi | 61% | 2631 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 96% | 36,477 psi | 79% | 2877 fps | 95.9% |
| Alliant Reloder-26 | 71.8 gr | 86% | 32,721 psi | 71% | 2818 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,705 psi | 68% | 2677 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 58% | 1762 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 33,504 psi | 72% | 2726 fps | 96.2% |
| Lovex S065 | <<locked>> | 80% | 38,174 psi | 82% | 2782 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 38,769 psi | 84% | 2815 fps | 95.2% |
| Lovex S071 | <<locked>> | 96% | 36,753 psi | 79% | 2802 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 34,664 psi | 75% | 2772 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 84% | 38,508 psi | 83% | 2874 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,325 psi | 59% | 1804 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,461 psi | 74% | 2789 fps | 96.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 33,895 psi | 73% | 2789 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,174 psi | 82% | 2782 fps | 96.2% |
| Shooters World SW4350 | <<locked>> | 82% | 38,769 psi | 84% | 2815 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 31,256 psi | 67% | 2723 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 80% | 36,114 psi | 78% | 2776 fps | 96.8% |
| Vihtavuori N550 | <<locked>> | 80% | 35,694 psi | 77% | 2776 fps | 96.5% |
| Vihtavuori N555 | 63.9 gr | 84% | 30,980 psi | 67% | 2713 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,476 psi | 76% | 2743 fps | 98.7% |
| Winchester StaBALL HD | 68.9 gr | 86% | 26,745 psi | 58% | 2651 fps | 95.2% |
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 | 150gr | Norma Kalahari. Winchester StaBALL HD delivers the highest muzzle velocity at 3,087 fps; across all powders the maximum-charge window runs from 1,972 fps to 3,087 fps. Alliant Reloder-25 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 150.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Hodgdon TrailBoss, Lovex S071 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 | 150gr | Norma Kalahari 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.