Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 165gr | Hornady SP 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>> | 90% | 40,001 psi | 86% | 2766 fps | 97.7% |
| Accurate 4350 | <<locked>> | 82% | 41,408 psi | 89% | 2815 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 82% | 39,958 psi | 86% | 2822 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 92% | 40,625 psi | 88% | 2851 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 96% | 40,277 psi | 87% | 2874 fps | 98.5% |
| Alliant Reloder-26 | <<locked>> | 88% | 39,233 psi | 85% | 2890 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 40,001 psi | 86% | 2762 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,448 psi | 79% | 1893 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 40,567 psi | 87% | 2746 fps | 96.2% |
| IMR 4831 | <<locked>> | 82% | 39,479 psi | 85% | 2756 fps | 98.9% |
| Lovex S071 | <<locked>> | 96% | 41,031 psi | 88% | 2789 fps | 97.9% |
| Norma MRP | <<locked>> | 90% | 41,800 psi | 90% | 2910 fps | 97.2% |
| Norma URP | <<locked>> | 82% | 40,959 psi | 88% | 2805 fps | 99% |
| Ramshot Hunter | <<locked>> | 82% | 39,755 psi | 86% | 2792 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 80% | 1939 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 41,031 psi | 88% | 2828 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 39,842 psi | 86% | 2844 fps | 98.5% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 41,756 psi | 90% | 2949 fps | 97.4% |
| Somchem S365 | <<locked>> | 84% | 39,972 psi | 86% | 2818 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 41,959 psi | 90% | 2805 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 92% | 41,321 psi | 89% | 2782 fps | 96% |
| Vihtavuori N550 | <<locked>> | 82% | 41,887 psi | 90% | 2805 fps | 99% |
| Vihtavuori N555 | <<locked>> | 88% | 39,784 psi | 86% | 2815 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 41,611 psi | 90% | 2769 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 41,510 psi | 89% | 3009 fps | 100% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 32,489 psi | 70% | 2585 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 38,566 psi | 83% | 2753 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,318 psi | 80% | 2759 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,499 psi | 59% | 2503 fps | 96.6% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,301 psi | 72% | 2690 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 82% | 31,589 psi | 68% | 2687 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,911 psi | 75% | 2648 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 59% | 1693 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,956 psi | 82% | 2687 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 37,043 psi | 80% | 2703 fps | 98.4% |
| Lovex S071 | <<locked>> | 90% | 33,779 psi | 73% | 2618 fps | 95.6% |
| Norma MRP | <<locked>> | 86% | 36,376 psi | 78% | 2782 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 38,261 psi | 82% | 2746 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 80% | 37,028 psi | 80% | 2730 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,731 psi | 60% | 1732 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,334 psi | 83% | 2769 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,144 psi | 80% | 2776 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,303 psi | 78% | 2805 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 34,693 psi | 75% | 2700 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 39,276 psi | 85% | 2746 fps | 95.8% |
| Vihtavuori N165 | <<locked>> | 90% | 38,798 psi | 84% | 2726 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 39,204 psi | 84% | 2746 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 30,327 psi | 65% | 2582 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,812 psi | 84% | 2710 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,294 psi | 52% | 2467 fps | 95.2% |
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 | 165gr | Hornady SP. Winchester StaBALL HD delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,893 fps to 3,009 fps. Hodgdon TrailBoss 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 79–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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.