Load Specifications
Load data in caliber .30 Super Fl. H&H with .308 | 145gr | Prvi Partizan FMJ BT bullet and 24 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and Vihtavuori N555.
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% | 40,727 psi | 88% | 2936 fps | 96.5% |
| Accurate 4350 | <<locked>> | 84% | 39,653 psi | 85% | 2940 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 41,205 psi | 89% | 3012 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 82% | 41,118 psi | 89% | 3031 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 41,466 psi | 89% | 3035 fps | 99.6% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,365 psi | 89% | 3048 fps | 97.4% |
| Alliant Reloder-26 | <<locked>> | 92% | 40,219 psi | 87% | 3071 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 41,046 psi | 88% | 2949 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,100 psi | 78% | 2011 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 40,785 psi | 88% | 2949 fps | 98.2% |
| Lovex S065 | <<locked>> | 82% | 40,335 psi | 87% | 2881 fps | 96.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,640 psi | 90% | 2956 fps | 96.8% |
| Norma URP | <<locked>> | 84% | 39,479 psi | 85% | 2936 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 86% | 41,017 psi | 88% | 2979 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,666 psi | 79% | 2057 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 39,436 psi | 85% | 2956 fps | 97.5% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 41,350 psi | 89% | 3031 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 40,335 psi | 87% | 2881 fps | 96.6% |
| Somchem S365 | <<locked>> | 88% | 40,770 psi | 88% | 3005 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 84% | 41,046 psi | 88% | 2936 fps | 98% |
| Vihtavuori N550 | <<locked>> | 84% | 40,567 psi | 87% | 2936 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 92% | 40,364 psi | 87% | 2995 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 40,538 psi | 87% | 2904 fps | 99.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 39,682 psi | 86% | 3120 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 38,145 psi | 82% | 2877 fps | 95.6% |
| Accurate 4350 | <<locked>> | 80% | 34,577 psi | 75% | 2812 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,011 psi | 73% | 2825 fps | 96.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,450 psi | 83% | 2969 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,224 psi | 61% | 2664 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 96% | 36,332 psi | 78% | 2913 fps | 95.5% |
| Alliant Reloder-26 | 74.9 gr | 88% | 34,882 psi | 75% | 2927 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,502 psi | 68% | 2713 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,832 psi | 58% | 1798 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 33,243 psi | 72% | 2759 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 37,956 psi | 82% | 2822 fps | 95.9% |
| Lovex S071 | <<locked>> | 96% | 36,550 psi | 79% | 2838 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 34,563 psi | 74% | 2812 fps | 96% |
| Ramshot Hunter | <<locked>> | 84% | 38,406 psi | 83% | 2917 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,412 psi | 59% | 1844 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,229 psi | 74% | 2825 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 36,114 psi | 78% | 2897 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,956 psi | 82% | 2822 fps | 95.9% |
| Somchem S365 | <<locked>> | 80% | 31,024 psi | 67% | 2759 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 80% | 35,955 psi | 77% | 2815 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 80% | 35,389 psi | 76% | 2812 fps | 96.1% |
| Vihtavuori N555 | 65.2 gr | 84% | 30,806 psi | 66% | 2749 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,375 psi | 76% | 2782 fps | 98.5% |
| Winchester StaBALL HD | 72 gr | 88% | 28,485 psi | 61% | 2759 fps | 96.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 50 powders for .30 Super Fl. H&H loaded with the .308 | 145gr | Prvi Partizan FMJ BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,120 fps; across all powders the maximum-charge window runs from 2,011 fps to 3,120 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 50 of the 50 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 145.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Hodgdon H1000, Hodgdon Retumbo 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. Alliant Reloder-26, Winchester StaBALL HD, Vihtavuori N555 rank at the top here: for .30 Super Fl. H&H with the .308 | 145gr | Prvi Partizan FMJ BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.