Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 130gr | Sierra SP SSPistol bullet and 45 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and ReloadSwiss RS 62.
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 2495 | <<locked>> | 82% | 40,654 psi | 85% | 2717 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 40,843 psi | 85% | 2756 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 42,163 psi | 88% | 2848 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 86% | 42,859 psi | 90% | 2776 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 43,178 psi | 90% | 2910 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,351 psi | 88% | 2799 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,554 psi | 89% | 2808 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,930 psi | 88% | 2858 fps | 97.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,018 psi | 88% | 2890 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,926 psi | 75% | 2743 fps | 97% |
| Bofors RP3 | <<locked>> | 86% | 42,047 psi | 88% | 2802 fps | 99% |
| Hodgdon H380 | <<locked>> | 86% | 43,207 psi | 90% | 2808 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 41,046 psi | 86% | 2795 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 40,582 psi | 85% | 2802 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,998 psi | 73% | 1824 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 43,192 psi | 90% | 2789 fps | 98.8% |
| IMR 4064 | <<locked>> | 84% | 42,105 psi | 88% | 2753 fps | 97.8% |
| IMR 4831 | <<locked>> | 96% | 43,207 psi | 90% | 2851 fps | 97.5% |
| IMR 4895 | <<locked>> | 82% | 41,002 psi | 86% | 2785 fps | 98.1% |
| Lovex S062 | <<locked>> | 84% | 41,887 psi | 88% | 2756 fps | 99.2% |
| Norma 203B | <<locked>> | 84% | 41,872 psi | 87% | 2795 fps | 98.2% |
| Norma URP | <<locked>> | 94% | 42,047 psi | 88% | 2841 fps | 97% |
| Ramshot Big Game | <<locked>> | 84% | 41,611 psi | 87% | 2812 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,563 psi | 74% | 1870 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 41,829 psi | 87% | 2858 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 41,872 psi | 87% | 2900 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,742 psi | 87% | 2864 fps | 96.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,424 psi | 89% | 2877 fps | 96% |
| Rottweil R 902 | <<locked>> | 82% | 41,524 psi | 87% | 2726 fps | 99% |
| Rottweil R 903 | <<locked>> | 88% | 41,945 psi | 88% | 2795 fps | 98.8% |
| Shooters World Precision | <<locked>> | 84% | 41,887 psi | 88% | 2756 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 43,279 psi | 90% | 2851 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 42,960 psi | 90% | 2789 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,192 psi | 88% | 2684 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 42,786 psi | 89% | 2799 fps | 98.8% |
| Somchem S365 | <<locked>> | 98% | 42,902 psi | 90% | 2907 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 82% | 40,727 psi | 85% | 2713 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,336 psi | 86% | 2717 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 40,915 psi | 85% | 2730 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 92% | 41,379 psi | 86% | 2789 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 84% | 42,583 psi | 89% | 2759 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 40,785 psi | 85% | 2792 fps | 96.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,508 psi | 80% | 2822 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,887 psi | 88% | 2772 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,250 psi | 88% | 2795 fps | 98.7% |
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 2495 | <<locked>> | 80% | 37,855 psi | 79% | 2664 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,810 psi | 75% | 2648 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 36,608 psi | 76% | 2730 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 35,447 psi | 74% | 2608 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,768 psi | 79% | 2782 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,940 psi | 73% | 2635 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,420 psi | 78% | 2694 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,985 psi | 77% | 2740 fps | 95.6% |
| Alliant Reloder-17 | 45 gr | 82% | 32,184 psi | 67% | 2641 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,676 psi | 66% | 2625 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 34,287 psi | 72% | 2631 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 37,666 psi | 79% | 2690 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,821 psi | 66% | 2575 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,869 psi | 79% | 2743 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,078 psi | 54% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,393 psi | 84% | 2730 fps | 98.3% |
| IMR 4064 | <<locked>> | 80% | 37,173 psi | 78% | 2644 fps | 96.5% |
| IMR 4831 | <<locked>> | 90% | 35,462 psi | 74% | 2684 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 38,290 psi | 80% | 2726 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 37,028 psi | 77% | 2654 fps | 98.2% |
| Norma 203B | <<locked>> | 80% | 36,796 psi | 77% | 2680 fps | 96.9% |
| Norma URP | <<locked>> | 90% | 37,115 psi | 78% | 2733 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 36,405 psi | 76% | 2694 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,426 psi | 55% | 1673 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,943 psi | 81% | 2795 fps | 97% |
| ReloadSwiss RS 60 | 43.9 gr | 80% | 32,053 psi | 67% | 2654 fps | 98.1% |
| ReloadSwiss RS 62 | 49.3 gr | 90% | 36,419 psi | 76% | 2743 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,711 psi | 83% | 2815 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 38,798 psi | 81% | 2671 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 32,271 psi | 67% | 2572 fps | 96.2% |
| Shooters World Precision | <<locked>> | 80% | 37,028 psi | 77% | 2654 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,272 psi | 70% | 2621 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,205 psi | 84% | 2733 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,099 psi | 73% | 2543 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 33,199 psi | 69% | 2582 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 29,022 psi | 61% | 2559 fps | 95.9% |
| Vihtavuori N135 | <<locked>> | 80% | 38,174 psi | 80% | 2664 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,856 psi | 81% | 2667 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,575 psi | 66% | 2520 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 36,303 psi | 76% | 2674 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 37,492 psi | 78% | 2657 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 38,145 psi | 80% | 2736 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 96% | 33,765 psi | 71% | 2707 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,198 psi | 67% | 2543 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,508 psi | 83% | 2736 fps | 98.2% |
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 45 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 130gr | Sierra SP SSPistol. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,824 fps to 2,910 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 45 of the 45 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.284" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, 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. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 130gr | Sierra SP SSPistol they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.