Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 155gr | Norma Kalahari 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% | 39,334 psi | 85% | 2822 fps | 96.7% |
| Accurate 4350 | <<locked>> | 84% | 40,959 psi | 88% | 2881 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 84% | 39,755 psi | 86% | 2890 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 40,045 psi | 86% | 2913 fps | 99.7% |
| Alliant Reloder-25 | <<locked>> | 98% | 39,784 psi | 86% | 2927 fps | 97.6% |
| Alliant Reloder-26 | <<locked>> | 92% | 41,727 psi | 90% | 3022 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 39,639 psi | 85% | 2828 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,245 psi | 78% | 1942 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 41,901 psi | 90% | 2884 fps | 98.8% |
| Lovex S065 | <<locked>> | 82% | 41,423 psi | 89% | 2818 fps | 97.5% |
| Lovex S070 | <<locked>> | 82% | 39,639 psi | 85% | 2795 fps | 95.9% |
| Lovex S071 | <<locked>> | 98% | 40,248 psi | 87% | 2841 fps | 97% |
| Norma MRP | <<locked>> | 92% | 41,437 psi | 89% | 2972 fps | 96.1% |
| Norma URP | <<locked>> | 84% | 40,625 psi | 88% | 2874 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 84% | 39,421 psi | 85% | 2858 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,869 psi | 79% | 1985 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 40,712 psi | 88% | 2897 fps | 98.3% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 39,827 psi | 86% | 2910 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 41,423 psi | 89% | 2818 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 82% | 39,639 psi | 85% | 2795 fps | 95.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 40,640 psi | 88% | 2756 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 39,392 psi | 85% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 39,610 psi | 85% | 2815 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 84% | 41,611 psi | 90% | 2874 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 92% | 41,800 psi | 90% | 2940 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 41,655 psi | 90% | 2841 fps | 99.8% |
| Winchester 760 | <<locked>> | 82% | 40,451 psi | 87% | 2871 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 40,959 psi | 88% | 3068 fps | 100% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 36,811 psi | 79% | 2766 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 35,621 psi | 77% | 2756 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,969 psi | 75% | 2769 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,267 psi | 59% | 2559 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 94% | 35,157 psi | 76% | 2805 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 86% | 33,576 psi | 72% | 2808 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,489 psi | 70% | 2657 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,079 psi | 58% | 1736 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 34,360 psi | 74% | 2710 fps | 96.9% |
| Lovex S065 | <<locked>> | 80% | 38,943 psi | 84% | 2762 fps | 96.8% |
| Lovex S070 | <<locked>> | 80% | 37,217 psi | 80% | 2740 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 35,375 psi | 76% | 2730 fps | 95.3% |
| Norma MRP | <<locked>> | 90% | 38,725 psi | 83% | 2907 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 35,665 psi | 77% | 2756 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 82% | 36,898 psi | 80% | 2795 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,543 psi | 59% | 1778 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,418 psi | 76% | 2772 fps | 96.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 34,664 psi | 75% | 2776 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,943 psi | 84% | 2762 fps | 96.8% |
| Shooters World SW4350 | <<locked>> | 80% | 37,217 psi | 80% | 2740 fps | 95% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,145 psi | 82% | 2700 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 32,082 psi | 69% | 2707 fps | 99% |
| Vihtavuori N160 | <<locked>> | 80% | 36,927 psi | 80% | 2753 fps | 97.4% |
| Vihtavuori N550 | <<locked>> | 80% | 36,521 psi | 79% | 2756 fps | 97.1% |
| Vihtavuori N555 | <<locked>> | 82% | 29,820 psi | 64% | 2641 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,245 psi | 78% | 2723 fps | 99.1% |
| Winchester 760 | <<locked>> | 80% | 37,797 psi | 81% | 2808 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 86% | 27,412 psi | 59% | 2648 fps | 96.4% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 28 powders for .30 Super Fl. H&H loaded with the .308 | 155gr | Norma Kalahari. Winchester StaBALL HD delivers the highest muzzle velocity at 3,068 fps; across all powders the maximum-charge window runs from 1,942 fps to 3,068 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 28 of the 28 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 155.0 gr projectile in 0.308" 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.