Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 150gr | Lapua TRX N585 bullet and 25 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>> | 94% | 39,813 psi | 86% | 2867 fps | 96.3% |
| Accurate 4350 | <<locked>> | 86% | 41,611 psi | 90% | 2933 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 40,466 psi | 87% | 2943 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 82% | 40,277 psi | 87% | 2959 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 40,393 psi | 87% | 2959 fps | 99.5% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,495 psi | 87% | 2976 fps | 97.2% |
| Alliant Reloder-26 | <<locked>> | 92% | 39,262 psi | 85% | 2995 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 40,321 psi | 87% | 2884 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,013 psi | 78% | 1959 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 39,900 psi | 86% | 2881 fps | 98.1% |
| Lovex S065 | <<locked>> | 82% | 39,668 psi | 85% | 2812 fps | 96.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,553 psi | 87% | 2884 fps | 96.6% |
| Norma URP | <<locked>> | 86% | 41,321 psi | 89% | 2927 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 86% | 40,292 psi | 87% | 2913 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,622 psi | 79% | 2005 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 41,510 psi | 89% | 2953 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 40,640 psi | 88% | 2966 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 39,668 psi | 85% | 2812 fps | 96.5% |
| Somchem S365 | <<locked>> | 88% | 39,929 psi | 86% | 2940 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 41,872 psi | 90% | 2848 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 84% | 40,248 psi | 87% | 2867 fps | 97.9% |
| Vihtavuori N550 | <<locked>> | 84% | 39,769 psi | 86% | 2871 fps | 97.6% |
| Vihtavuori N555 | <<locked>> | 92% | 39,436 psi | 85% | 2927 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 39,827 psi | 86% | 2838 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,437 psi | 89% | 3117 fps | 100% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 37,202 psi | 80% | 2808 fps | 95.5% |
| Accurate 4350 | <<locked>> | 80% | 33,808 psi | 73% | 2746 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,475 psi | 72% | 2759 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,550 psi | 81% | 2894 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,644 psi | 60% | 2602 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 96% | 35,534 psi | 77% | 2844 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 88% | 34,113 psi | 74% | 2858 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,922 psi | 67% | 2648 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 58% | 1755 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 32,692 psi | 70% | 2700 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 37,391 psi | 81% | 2759 fps | 95.8% |
| Lovex S071 | <<locked>> | 98% | 38,058 psi | 82% | 2828 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 33,823 psi | 73% | 2743 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 84% | 37,652 psi | 81% | 2848 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,325 psi | 59% | 1795 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,504 psi | 72% | 2762 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 35,462 psi | 76% | 2828 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,391 psi | 81% | 2759 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 30,371 psi | 65% | 2694 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 80% | 39,247 psi | 85% | 2792 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 35,273 psi | 76% | 2749 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 80% | 34,795 psi | 75% | 2749 fps | 96% |
| Vihtavuori N555 | <<locked>> | 84% | 30,168 psi | 65% | 2687 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,722 psi | 75% | 2720 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,804 psi | 60% | 2690 fps | 95.8% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 25 powders for .30 Super Fl. H&H loaded with the .308 | 150gr | Lapua TRX N585. Winchester StaBALL HD delivers the highest muzzle velocity at 3,117 fps; across all powders the maximum-charge window runs from 1,959 fps to 3,117 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 25 of the 25 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 1:11.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.