Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 150gr | Barnes MRX BT bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and Alliant Reloder-23.
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>> | 96% | 41,423 psi | 89% | 2910 fps | 96.8% |
| Accurate 4350 | <<locked>> | 86% | 40,451 psi | 87% | 2913 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 86% | 39,537 psi | 85% | 2927 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 82% | 39,450 psi | 85% | 2949 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 39,450 psi | 85% | 2943 fps | 99.4% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,378 psi | 85% | 2956 fps | 96.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 41,046 psi | 88% | 3048 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 39,276 psi | 85% | 2867 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,853 psi | 77% | 1962 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 41,466 psi | 89% | 2920 fps | 98.4% |
| Lovex S065 | <<locked>> | 84% | 41,176 psi | 89% | 2854 fps | 97% |
| Lovex S070 | <<locked>> | 86% | 41,843 psi | 90% | 2887 fps | 96% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,320 psi | 85% | 2864 fps | 96.2% |
| Norma URP | <<locked>> | 86% | 40,263 psi | 87% | 2910 fps | 98% |
| Ramshot Hunter | <<locked>> | 86% | 39,262 psi | 85% | 2897 fps | 96% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,376 psi | 78% | 2005 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 40,306 psi | 87% | 2936 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 39,581 psi | 85% | 2946 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 41,176 psi | 89% | 2854 fps | 97% |
| Shooters World SW4350 | <<locked>> | 86% | 41,843 psi | 90% | 2887 fps | 96% |
| Somchem S365 | <<locked>> | 90% | 41,553 psi | 90% | 2979 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 40,814 psi | 88% | 2831 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 84% | 39,247 psi | 85% | 2851 fps | 97.7% |
| Vihtavuori N550 | <<locked>> | 86% | 41,437 psi | 89% | 2913 fps | 98% |
| Vihtavuori N555 | <<locked>> | 94% | 41,046 psi | 88% | 2969 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 41,597 psi | 90% | 2884 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,408 psi | 87% | 3097 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>> | 92% | 35,824 psi | 77% | 2782 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 32,547 psi | 70% | 2720 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,576 psi | 70% | 2740 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,724 psi | 79% | 2881 fps | 98.8% |
| Alliant Reloder-23 | 64.1 gr | 86% | 28,413 psi | 61% | 2638 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,912 psi | 80% | 2887 fps | 95.9% |
| Alliant Reloder-26 | 72.1 gr | 88% | 32,924 psi | 71% | 2828 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,950 psi | 65% | 2628 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 57% | 1752 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 31,589 psi | 68% | 2677 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 36,347 psi | 78% | 2740 fps | 95.5% |
| Lovex S070 | <<locked>> | 84% | 39,218 psi | 85% | 2828 fps | 95.2% |
| Lovex S071 | <<locked>> | 98% | 36,680 psi | 79% | 2802 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 32,793 psi | 71% | 2723 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 84% | 36,637 psi | 79% | 2831 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,948 psi | 58% | 1791 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,358 psi | 70% | 2736 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 34,476 psi | 74% | 2808 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,347 psi | 78% | 2740 fps | 95.5% |
| Shooters World SW4350 | <<locked>> | 84% | 39,218 psi | 85% | 2828 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 29,443 psi | 63% | 2674 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 38,174 psi | 82% | 2776 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 34,272 psi | 74% | 2730 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 80% | 33,721 psi | 73% | 2726 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 86% | 31,067 psi | 67% | 2723 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,779 psi | 73% | 2700 fps | 98.2% |
| Winchester StaBALL HD | 69.3 gr | 88% | 26,832 psi | 58% | 2657 fps | 95% |
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 27 powders for .30 Super Fl. H&H loaded with the .308 | 150gr | Barnes MRX BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,097 fps; across all powders the maximum-charge window runs from 1,962 fps to 3,097 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 27 of the 27 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 77–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:11.5 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. Alliant Reloder-26, Winchester StaBALL HD, Alliant Reloder-23 rank at the top here: for .30 Super Fl. H&H with the .308 | 150gr | Barnes MRX BT 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.