Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 205gr | Sierra GameKing bullet and 37 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Winchester StaBALL HD.
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>> | 86% | 41,031 psi | 88% | 2523 fps | 99.5% |
| Accurate High Country | <<locked>> | 84% | 41,510 psi | 89% | 2635 fps | 96.9% |
| ADI AR 2209 | <<locked>> | 82% | 40,118 psi | 86% | 2539 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 86% | 40,915 psi | 88% | 2585 fps | 96.3% |
| ADI AR 2217 | <<locked>> | 96% | 41,901 psi | 90% | 2605 fps | 96.9% |
| ADI AR 2225 | <<locked>> | 98% | 39,813 psi | 86% | 2628 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 40,408 psi | 87% | 2539 fps | 97.4% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 40,408 psi | 87% | 2539 fps | 97.4% |
| Alliant Reloder-19 | <<locked>> | 82% | 40,045 psi | 86% | 2533 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 86% | 40,886 psi | 88% | 2592 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 88% | 41,858 psi | 90% | 2592 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 41,350 psi | 89% | 2635 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 84% | 40,408 psi | 87% | 2641 fps | 100% |
| Bofors RP15 | <<locked>> | 88% | 40,509 psi | 87% | 2585 fps | 97.6% |
| Bofors RP30 | <<locked>> | 94% | 40,582 psi | 87% | 2621 fps | 97.1% |
| Bofors RP5 | <<locked>> | 86% | 40,886 psi | 88% | 2592 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 92% | 40,132 psi | 86% | 2572 fps | 97% |
| Hodgdon Retumbo | <<locked>> | 92% | 40,364 psi | 87% | 2674 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,159 psi | 80% | 1703 fps | 100% |
| IMR 7828 SSC | <<locked>> | 88% | 41,989 psi | 90% | 2621 fps | 96.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 38,145 psi | 82% | 2592 fps | 96.1% |
| Lovex S071 | <<locked>> | 90% | 39,769 psi | 86% | 2497 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 38,130 psi | 82% | 2615 fps | 98.3% |
| Norma MRP | <<locked>> | 84% | 40,001 psi | 86% | 2605 fps | 98.7% |
| Ramshot Grand | <<locked>> | 88% | 41,669 psi | 90% | 2628 fps | 97.1% |
| Ramshot Magnum | <<locked>> | 90% | 39,900 psi | 86% | 2572 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,797 psi | 81% | 1739 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 39,842 psi | 86% | 2664 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 82% | 41,437 psi | 89% | 2516 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 82% | 39,465 psi | 85% | 2523 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 41,814 psi | 90% | 2572 fps | 98% |
| Somchem S385 | <<locked>> | 82% | 39,972 psi | 86% | 2503 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 86% | 39,508 psi | 85% | 2487 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 84% | 41,191 psi | 89% | 2566 fps | 100% |
| Vihtavuori N565 | <<locked>> | 90% | 40,190 psi | 87% | 2585 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 90% | 41,046 psi | 88% | 2700 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 41,945 psi | 90% | 2543 fps | 97.9% |
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>> | 80% | 33,489 psi | 72% | 2365 fps | 97.9% |
| Accurate High Country | <<locked>> | 80% | 36,216 psi | 78% | 2520 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 37,579 psi | 81% | 2484 fps | 96.6% |
| ADI AR 2213 | <<locked>> | 84% | 38,159 psi | 82% | 2526 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 92% | 36,782 psi | 79% | 2490 fps | 95% |
| ADI AR 2225 | <<locked>> | 90% | 30,937 psi | 67% | 2402 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,869 psi | 82% | 2484 fps | 96.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,869 psi | 82% | 2484 fps | 96.7% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,521 psi | 81% | 2477 fps | 96.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 33,431 psi | 72% | 2425 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,169 psi | 69% | 2392 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,094 psi | 61% | 2306 fps | 96.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,969 psi | 75% | 2523 fps | 99.4% |
| Bofors RP15 | <<locked>> | 82% | 33,170 psi | 71% | 2418 fps | 95% |
| Bofors RP30 | <<locked>> | 90% | 35,418 psi | 76% | 2507 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 33,431 psi | 72% | 2425 fps | 95.3% |
| Hodgdon H1000 | <<locked>> | 88% | 35,070 psi | 76% | 2454 fps | 95.1% |
| Hodgdon Retumbo | 65.8 gr | 86% | 33,228 psi | 72% | 2493 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,731 psi | 60% | 1519 fps | 100% |
| IMR 7828 SSC | <<locked>> | 86% | 39,349 psi | 85% | 2566 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 35,737 psi | 77% | 2533 fps | 95.1% |
| Lovex S071 | <<locked>> | 80% | 28,921 psi | 62% | 2251 fps | 96.3% |
| Norma 217 | <<locked>> | 94% | 31,372 psi | 68% | 2444 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 34,867 psi | 75% | 2490 fps | 97.4% |
| Ramshot Grand | <<locked>> | 84% | 36,318 psi | 78% | 2510 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 84% | 32,271 psi | 70% | 2395 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,369 psi | 61% | 1555 fps | 100% |
| ReloadSwiss RS 76 | 68.8 gr | 84% | 30,124 psi | 65% | 2405 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 38,856 psi | 84% | 2464 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 80% | 36,767 psi | 79% | 2464 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,448 psi | 79% | 2457 fps | 96.5% |
| Somchem S385 | <<locked>> | 80% | 37,492 psi | 81% | 2451 fps | 97.6% |
| Vihtavuori N165 | <<locked>> | 80% | 32,387 psi | 70% | 2329 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 80% | 36,056 psi | 78% | 2461 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 88% | 37,521 psi | 81% | 2526 fps | 95.1% |
| Winchester StaBALL HD | 62.9 gr | 80% | 28,543 psi | 62% | 2411 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,113 psi | 74% | 2379 fps | 95.5% |
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 37 powders for .30 Super Fl. H&H loaded with the .308 | 205gr | Sierra GameKing. Winchester StaBALL HD delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,700 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 37 of the 37 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 80–90 %, leaving at least 10 % headroom. The 205.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, IMR 8133 Enduron, Norma 217 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. Hodgdon Retumbo, ReloadSwiss RS 76, Winchester StaBALL HD rank at the top here: for .30 Super Fl. H&H with the .308 | 205gr | Sierra GameKing 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.