Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 155gr | Sierra MatchKing 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>> | 92% | 41,089 psi | 89% | 2867 fps | 97.4% |
| Accurate 4350 | <<locked>> | 82% | 39,740 psi | 86% | 2861 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 41,220 psi | 89% | 2933 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 94% | 41,698 psi | 90% | 2956 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 98% | 41,481 psi | 89% | 2979 fps | 98.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 40,480 psi | 87% | 2999 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 82% | 41,756 psi | 90% | 2910 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 41,205 psi | 89% | 2871 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,303 psi | 78% | 1955 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 41,800 psi | 90% | 2851 fps | 95.9% |
| IMR 4831 | <<locked>> | 84% | 40,799 psi | 88% | 2867 fps | 98.8% |
| Lovex S070 | <<locked>> | 82% | 40,886 psi | 88% | 2835 fps | 96.5% |
| Lovex S071 | <<locked>> | 98% | 41,989 psi | 90% | 2887 fps | 97.6% |
| Norma MRP | <<locked>> | 90% | 40,248 psi | 87% | 2953 fps | 96% |
| Norma URP | <<locked>> | 82% | 39,436 psi | 85% | 2854 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 84% | 41,002 psi | 88% | 2900 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,927 psi | 80% | 2001 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 39,479 psi | 85% | 2877 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 41,234 psi | 89% | 2956 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 82% | 40,886 psi | 88% | 2835 fps | 96.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,843 psi | 90% | 2792 fps | 96.6% |
| Somchem S365 | <<locked>> | 86% | 41,017 psi | 88% | 2923 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 40,915 psi | 88% | 2854 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 82% | 40,364 psi | 87% | 2854 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 90% | 40,843 psi | 88% | 2923 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 40,205 psi | 87% | 2818 fps | 99.8% |
| Winchester 760 | <<locked>> | 82% | 41,930 psi | 90% | 2913 fps | 96.6% |
| Winchester StaBALL HD | <<locked>> | 96% | 39,987 psi | 86% | 3054 fps | 100% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 88% | 35,810 psi | 77% | 2746 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 37,043 psi | 80% | 2799 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,071 psi | 78% | 2808 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,498 psi | 57% | 2539 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,200 psi | 74% | 2789 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 84% | 32,518 psi | 70% | 2785 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 39,073 psi | 84% | 2848 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,634 psi | 72% | 2697 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,079 psi | 58% | 1749 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 39,363 psi | 85% | 2799 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 35,665 psi | 77% | 2749 fps | 97.5% |
| Lovex S070 | <<locked>> | 80% | 38,334 psi | 83% | 2776 fps | 95.7% |
| Lovex S071 | <<locked>> | 92% | 34,577 psi | 75% | 2717 fps | 95.3% |
| Norma MRP | <<locked>> | 88% | 37,666 psi | 81% | 2890 fps | 95% |
| Norma URP | <<locked>> | 80% | 36,869 psi | 79% | 2792 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 80% | 35,795 psi | 77% | 2776 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,702 psi | 60% | 1795 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,898 psi | 80% | 2815 fps | 97.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,868 psi | 77% | 2818 fps | 96.7% |
| Shooters World SW4350 | <<locked>> | 80% | 38,334 psi | 83% | 2776 fps | 95.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,233 psi | 85% | 2736 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 33,388 psi | 72% | 2746 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 38,290 psi | 83% | 2795 fps | 98% |
| Vihtavuori N550 | <<locked>> | 80% | 37,797 psi | 81% | 2795 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 80% | 29,153 psi | 63% | 2625 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,565 psi | 81% | 2762 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 39,073 psi | 84% | 2848 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,745 psi | 58% | 2631 fps | 96.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 58 powders for .30 Super Fl. H&H loaded with the .308 | 155gr | Sierra MatchKing. Winchester StaBALL HD delivers the highest muzzle velocity at 3,054 fps; across all powders the maximum-charge window runs from 1,955 fps to 3,054 fps. ADI AR 2217 gives the best case fill at 100 %, and 58 of the 58 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 76–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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. As outliers, Accurate High Country, ADI AR 2209, ADI AR 2213 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.