Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 156gr | Norma ORYX bullet and 42 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and Alliant Reloder-16.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100ᴾ | <<locked>> | 100% | 43,105 psi | 90% | 2615 fps | 97.6% |
| Accurate 4350 | <<locked>> | 90% | 42,714 psi | 89% | 2621 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 82% | 42,308 psi | 88% | 2533 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 42,032 psi | 88% | 2552 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 41,887 psi | 88% | 2631 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 86% | 41,800 psi | 87% | 2654 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,046 psi | 86% | 2644 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 42,728 psi | 89% | 2746 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 42,090 psi | 88% | 2566 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 82% | 42,685 psi | 89% | 2569 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 88% | 42,264 psi | 88% | 2615 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 41,321 psi | 86% | 2572 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,795 psi | 75% | 1667 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 42,714 psi | 89% | 2559 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,597 psi | 87% | 2516 fps | 95.9% |
| IMR 4831 | <<locked>> | 90% | 40,930 psi | 86% | 2572 fps | 98.6% |
| Lovex S065 | <<locked>> | 86% | 41,263 psi | 86% | 2516 fps | 97.4% |
| Lovex S070 | <<locked>> | 88% | 41,785 psi | 87% | 2546 fps | 96.4% |
| Norma MRP | <<locked>> | 98% | 42,699 psi | 89% | 2703 fps | 96.3% |
| Norma URP | <<locked>> | 90% | 42,467 psi | 89% | 2618 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 90% | 41,423 psi | 87% | 2608 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,216 psi | 76% | 1706 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 43,062 psi | 90% | 2552 fps | 97.1% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 41,481 psi | 87% | 2654 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 42,322 psi | 88% | 2641 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,032 psi | 88% | 2657 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 84% | 42,221 psi | 88% | 2559 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 41,263 psi | 86% | 2516 fps | 97.4% |
| Shooters World SW4350 | <<locked>> | 88% | 41,785 psi | 87% | 2546 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 43,163 psi | 90% | 2612 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 41,684 psi | 87% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,553 psi | 85% | 2461 fps | 95.8% |
| Somchem S355 | <<locked>> | 84% | 42,757 psi | 89% | 2559 fps | 99.7% |
| Somchem S365 | <<locked>> | 92% | 40,538 psi | 85% | 2621 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 43,236 psi | 90% | 2608 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 84% | 40,944 psi | 86% | 2497 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 41,655 psi | 87% | 2566 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 88% | 40,799 psi | 85% | 2566 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 98% | 42,380 psi | 89% | 2664 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 41,321 psi | 86% | 2543 fps | 99.8% |
| Winchester 760 | <<locked>> | 88% | 42,511 psi | 89% | 2618 fps | 96.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,593 psi | 76% | 2661 fps | 99.8% |
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>> | 94% | 35,012 psi | 73% | 2454 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 30,240 psi | 63% | 2352 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 39,697 psi | 83% | 2484 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,450 psi | 82% | 2503 fps | 99.6% |
| Alliant Reloder-16 | 39.7 gr | 80% | 30,647 psi | 64% | 2365 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,156 psi | 71% | 2487 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,701 psi | 56% | 2283 fps | 95.2% |
| Alliant Reloder-26 | 49.3 gr | 90% | 32,343 psi | 68% | 2500 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 39,175 psi | 82% | 2510 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 40,045 psi | 84% | 2516 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 39,668 psi | 83% | 2562 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,224 psi | 59% | 2274 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,527 psi | 55% | 1486 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 40,176 psi | 84% | 2510 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,102 psi | 82% | 2464 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 29,414 psi | 61% | 2313 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 34,316 psi | 72% | 2369 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 39,291 psi | 82% | 2497 fps | 95.7% |
| Norma MRP | <<locked>> | 96% | 40,147 psi | 84% | 2648 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 30,589 psi | 64% | 2352 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 86% | 36,390 psi | 76% | 2500 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 56% | 1522 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,248 psi | 84% | 2497 fps | 96.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,347 psi | 76% | 2549 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,097 psi | 67% | 2421 fps | 95.7% |
| ReloadSwiss RS 70 | 45.6 gr | 84% | 34,287 psi | 72% | 2480 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 36,869 psi | 77% | 2457 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,316 psi | 72% | 2369 fps | 95.2% |
| Shooters World SW4350 | <<locked>> | 86% | 39,291 psi | 82% | 2497 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,797 psi | 79% | 2507 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,305 psi | 82% | 2398 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,043 psi | 79% | 2411 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 37,695 psi | 79% | 2461 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 27,557 psi | 58% | 2313 fps | 97.6% |
| Somchem S385 | <<locked>> | 94% | 40,292 psi | 84% | 2552 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 35,766 psi | 75% | 2398 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 31,995 psi | 67% | 2359 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 31,517 psi | 66% | 2359 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 86% | 28,616 psi | 60% | 2356 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,705 psi | 66% | 2336 fps | 97.9% |
| Winchester 760 | <<locked>> | 86% | 39,668 psi | 83% | 2562 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,701 psi | 56% | 2356 fps | 95.7% |
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 42 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 156gr | Norma ORYX. Alliant Reloder-26 delivers the highest muzzle velocity at 2,746 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,746 fps. Accurate 3100 gives the best case fill at 100 %, and 42 of the 42 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.284" calls for a 1:13.5 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, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 156gr | Norma ORYX 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.