Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 154gr | Norma Soft Point bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Somchem S365 and ReloadSwiss RS 70.
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 3100ᴾ | <<locked>> | 100% | 41,104 psi | 86% | 2582 fps | 96.8% |
| Accurate 4064 | <<locked>> | 82% | 41,959 psi | 88% | 2536 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 40,741 psi | 85% | 2595 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 82% | 40,770 psi | 85% | 2510 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 43,105 psi | 90% | 2579 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,873 psi | 90% | 2657 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,772 psi | 89% | 2680 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,320 psi | 82% | 2615 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 98% | 40,756 psi | 85% | 2707 fps | 98.1% |
| Bofors RP3 | <<locked>> | 84% | 43,178 psi | 90% | 2592 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 82% | 41,162 psi | 86% | 2543 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 42,293 psi | 88% | 2595 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,476 psi | 74% | 1660 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,844 psi | 90% | 2539 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,815 psi | 89% | 2543 fps | 95.9% |
| IMR 4831 | <<locked>> | 92% | 41,829 psi | 87% | 2598 fps | 98.6% |
| Lovex S062 | <<locked>> | 82% | 42,830 psi | 89% | 2543 fps | 99.9% |
| Lovex S065 | <<locked>> | 88% | 42,163 psi | 88% | 2539 fps | 97.3% |
| Lovex S070 | <<locked>> | 90% | 42,772 psi | 89% | 2569 fps | 96.3% |
| Norma 203B | <<locked>> | 82% | 42,830 psi | 89% | 2582 fps | 99.4% |
| Norma URP | <<locked>> | 90% | 40,683 psi | 85% | 2589 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 82% | 42,627 psi | 89% | 2602 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 92% | 42,453 psi | 89% | 2631 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,187 psi | 76% | 1703 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,669 psi | 87% | 2530 fps | 96.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 42,757 psi | 89% | 2687 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 43,294 psi | 90% | 2667 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 43,236 psi | 90% | 2684 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 86% | 43,047 psi | 90% | 2582 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 42,163 psi | 88% | 2539 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 42,830 psi | 89% | 2543 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 90% | 42,772 psi | 89% | 2569 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 41,655 psi | 87% | 2589 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,844 psi | 90% | 2464 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,858 psi | 87% | 2490 fps | 95.8% |
| Somchem S355 | <<locked>> | 84% | 41,205 psi | 86% | 2539 fps | 99.4% |
| Somchem S365 | <<locked>> | 94% | 41,394 psi | 86% | 2644 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 41,829 psi | 87% | 2520 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 90% | 42,627 psi | 89% | 2589 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 43,294 psi | 90% | 2539 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 41,945 psi | 88% | 2595 fps | 98.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,018 psi | 90% | 2684 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 42,525 psi | 89% | 2569 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,157 psi | 73% | 2625 fps | 99.4% |
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>> | 96% | 35,781 psi | 75% | 2477 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 39,566 psi | 83% | 2497 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,850 psi | 64% | 2375 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 38,479 psi | 80% | 2461 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,116 psi | 80% | 2484 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,589 psi | 66% | 2395 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,895 psi | 69% | 2461 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 88% | 27,180 psi | 57% | 2300 fps | 95% |
| Alliant Reloder-26 | 49.1 gr | 92% | 33,141 psi | 69% | 2523 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 37,797 psi | 79% | 2490 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 80% | 38,537 psi | 81% | 2490 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,050 psi | 57% | 2244 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,527 psi | 55% | 1486 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,422 psi | 84% | 2493 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,234 psi | 84% | 2490 fps | 95.1% |
| IMR 4831 | <<locked>> | 82% | 30,197 psi | 63% | 2343 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 40,147 psi | 84% | 2493 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 35,114 psi | 73% | 2392 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 40,132 psi | 84% | 2520 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 40,161 psi | 84% | 2530 fps | 99% |
| Norma URP | <<locked>> | 82% | 31,459 psi | 66% | 2382 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 39,682 psi | 83% | 2546 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 37,202 psi | 78% | 2523 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 56% | 1519 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,856 psi | 81% | 2474 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,012 psi | 73% | 2523 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,866 psi | 69% | 2448 fps | 95.6% |
| ReloadSwiss RS 70 | 45.5 gr | 86% | 35,331 psi | 74% | 2507 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 35,505 psi | 74% | 2434 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,114 psi | 73% | 2392 fps | 95.1% |
| Shooters World Precision | <<locked>> | 80% | 40,147 psi | 84% | 2493 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 40,132 psi | 84% | 2520 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,376 psi | 76% | 2480 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,043 psi | 79% | 2382 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 39,175 psi | 82% | 2438 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 36,390 psi | 76% | 2441 fps | 98.7% |
| Somchem S365 | 39.5 gr | 80% | 26,368 psi | 55% | 2283 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 80% | 34,534 psi | 72% | 2379 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 32,750 psi | 68% | 2382 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 40,611 psi | 85% | 2490 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,227 psi | 67% | 2385 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 88% | 29,008 psi | 61% | 2372 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,501 psi | 64% | 2306 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,282 psi | 57% | 2375 fps | 95.5% |
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 44 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 154gr | Norma Soft Point. Alliant Reloder-26 delivers the highest muzzle velocity at 2,707 fps; across all powders the maximum-charge window runs from 1,660 fps to 2,707 fps. Accurate 3100 gives the best case fill at 100 %, and 44 of the 44 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 154.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Hodgdon TrailBoss 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, Somchem S365, ReloadSwiss RS 70 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 154gr | Norma Soft Point 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.