Load Specifications
Load data in caliber .30 Super Fl. H&H with .306 | 165gr | Reichenberg HDB Univ Swiss bullet and 31 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% | 40,234 psi | 87% | 2776 fps | 97.7% |
| Accurate 4350 | <<locked>> | 84% | 41,872 psi | 90% | 2831 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 40,698 psi | 88% | 2841 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 41,133 psi | 89% | 2867 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 40,930 psi | 88% | 2894 fps | 98.6% |
| Alliant Reloder-26 | <<locked>> | 90% | 39,827 psi | 86% | 2910 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 41,234 psi | 89% | 2822 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 40,683 psi | 88% | 2779 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 82% | 40,480 psi | 87% | 2838 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,274 psi | 78% | 1886 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 41,524 psi | 89% | 2769 fps | 96.4% |
| IMR 4831 | <<locked>> | 84% | 40,161 psi | 87% | 2776 fps | 99% |
| Lovex S070 | <<locked>> | 82% | 40,306 psi | 87% | 2746 fps | 96.8% |
| Lovex S071 | <<locked>> | 98% | 41,147 psi | 89% | 2795 fps | 97.9% |
| Norma MRP | <<locked>> | 90% | 39,726 psi | 86% | 2867 fps | 96.4% |
| Norma URP | <<locked>> | 84% | 41,626 psi | 90% | 2825 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 84% | 40,596 psi | 87% | 2815 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,883 psi | 79% | 1929 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 41,800 psi | 90% | 2848 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 40,770 psi | 88% | 2867 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,595 psi | 85% | 2897 fps | 96.5% |
| Shooters World SW4350 | <<locked>> | 82% | 40,306 psi | 87% | 2746 fps | 96.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,321 psi | 89% | 2707 fps | 97% |
| Somchem S365 | <<locked>> | 86% | 40,538 psi | 87% | 2835 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 39,987 psi | 86% | 2769 fps | 95.9% |
| Vihtavuori N160 | <<locked>> | 82% | 40,480 psi | 87% | 2766 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 82% | 39,885 psi | 86% | 2766 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 90% | 40,132 psi | 86% | 2831 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 39,726 psi | 86% | 2733 fps | 99.9% |
| Winchester 760 | <<locked>> | 82% | 41,437 psi | 89% | 2825 fps | 97% |
| Winchester StaBALL HD | <<locked>> | 96% | 39,276 psi | 85% | 2963 fps | 100% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 32,634 psi | 70% | 2598 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 36,289 psi | 78% | 2707 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,679 psi | 77% | 2723 fps | 98.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,904 psi | 56% | 2454 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,547 psi | 72% | 2700 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 84% | 31,865 psi | 69% | 2700 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 80% | 38,638 psi | 83% | 2762 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,127 psi | 71% | 2612 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 80% | 37,608 psi | 81% | 2769 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,064 psi | 58% | 1686 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 38,798 psi | 84% | 2710 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 34,983 psi | 75% | 2657 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 37,797 psi | 81% | 2690 fps | 96.1% |
| Lovex S071 | <<locked>> | 92% | 33,823 psi | 73% | 2628 fps | 95.6% |
| Norma MRP | <<locked>> | 88% | 37,057 psi | 80% | 2802 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 36,434 psi | 79% | 2707 fps | 98% |
| Ramshot Hunter | <<locked>> | 80% | 35,360 psi | 76% | 2694 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 59% | 1726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,216 psi | 78% | 2726 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,360 psi | 76% | 2733 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,941 psi | 80% | 2825 fps | 95.2% |
| Shooters World SW4350 | <<locked>> | 80% | 37,797 psi | 81% | 2690 fps | 96.1% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,740 psi | 83% | 2651 fps | 96.2% |
| Somchem S365 | <<locked>> | 80% | 32,764 psi | 71% | 2657 fps | 99.5% |
| Somchem S385 | <<locked>> | 86% | 37,304 psi | 80% | 2707 fps | 95% |
| Vihtavuori N160 | <<locked>> | 80% | 37,739 psi | 81% | 2707 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 80% | 37,231 psi | 80% | 2707 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 28,340 psi | 61% | 2533 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,985 psi | 80% | 2674 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 38,638 psi | 83% | 2762 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,366 psi | 53% | 2474 fps | 95.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 31 powders for .30 Super Fl. H&H loaded with the .306 | 165gr | Reichenberg HDB Univ Swiss. Winchester StaBALL HD delivers the highest muzzle velocity at 2,963 fps; across all powders the maximum-charge window runs from 1,886 fps to 2,963 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 31 of the 31 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 165.0 gr projectile in 0.306" calls for a 1:12.5 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.