Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 150gr | Rhino Solid Shank bullet and 45 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Alliant Reloder-16 and Somchem S365.
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% | 40,495 psi | 85% | 2605 fps | 96.4% |
| Accurate 4064 | <<locked>> | 82% | 41,742 psi | 87% | 2572 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 43,149 psi | 90% | 2677 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 84% | 43,018 psi | 90% | 2589 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,888 psi | 90% | 2615 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 43,279 psi | 90% | 2628 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,554 psi | 89% | 2687 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,380 psi | 89% | 2710 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,885 psi | 81% | 2638 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 40,393 psi | 84% | 2736 fps | 97.8% |
| Bofors RP3 | <<locked>> | 84% | 42,627 psi | 89% | 2621 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 82% | 40,930 psi | 86% | 2575 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 90% | 43,105 psi | 90% | 2671 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 41,901 psi | 88% | 2625 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,636 psi | 74% | 1693 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,728 psi | 89% | 2575 fps | 99% |
| IMR 4831 | <<locked>> | 92% | 41,423 psi | 87% | 2625 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 42,395 psi | 89% | 2572 fps | 99.8% |
| Lovex S065 | <<locked>> | 88% | 41,916 psi | 88% | 2569 fps | 97% |
| Lovex S070 | <<locked>> | 90% | 42,409 psi | 89% | 2598 fps | 96% |
| Norma 203B | <<locked>> | 82% | 42,627 psi | 89% | 2615 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 43,062 psi | 90% | 2671 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 82% | 42,279 psi | 88% | 2631 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 92% | 42,003 psi | 88% | 2657 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,027 psi | 75% | 1729 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,162 psi | 86% | 2556 fps | 96% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 42,395 psi | 89% | 2717 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,801 psi | 89% | 2697 fps | 98.3% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,772 psi | 89% | 2710 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 86% | 42,815 psi | 89% | 2615 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,916 psi | 88% | 2569 fps | 97% |
| Shooters World Precision | <<locked>> | 82% | 42,395 psi | 89% | 2572 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 90% | 42,409 psi | 89% | 2598 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 41,075 psi | 86% | 2615 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,728 psi | 89% | 2500 fps | 100% |
| Somchem S355 | <<locked>> | 84% | 40,712 psi | 85% | 2566 fps | 99.3% |
| Somchem S365 | <<locked>> | 94% | 40,973 psi | 86% | 2674 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 41,553 psi | 87% | 2552 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 90% | 42,264 psi | 88% | 2618 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 82% | 43,091 psi | 90% | 2572 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 41,597 psi | 87% | 2621 fps | 97.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,438 psi | 89% | 2713 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 42,061 psi | 88% | 2595 fps | 99.6% |
| Winchester 760 | <<locked>> | 90% | 43,105 psi | 90% | 2671 fps | 96% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,911 psi | 73% | 2648 fps | 99.1% |
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>> | 98% | 37,797 psi | 79% | 2552 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 39,146 psi | 82% | 2526 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,837 psi | 69% | 2461 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 38,159 psi | 80% | 2490 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,724 psi | 79% | 2513 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,611 psi | 85% | 2575 fps | 98.6% |
| Alliant Reloder-16 | 40.2 gr | 82% | 31,285 psi | 65% | 2418 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,489 psi | 68% | 2484 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,674 psi | 60% | 2379 fps | 95.5% |
| Alliant Reloder-26 | 50.8 gr | 94% | 35,070 psi | 73% | 2608 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 37,391 psi | 78% | 2516 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 80% | 38,130 psi | 80% | 2516 fps | 96.9% |
| Hodgdon H414 | <<locked>> | 88% | 40,190 psi | 84% | 2615 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,572 psi | 60% | 2320 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,542 psi | 55% | 1509 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,074 psi | 84% | 2523 fps | 98.5% |
| IMR 4831 | <<locked>> | 84% | 31,836 psi | 67% | 2418 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 40,045 psi | 84% | 2530 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 36,999 psi | 77% | 2467 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 39,871 psi | 83% | 2549 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 39,972 psi | 84% | 2566 fps | 98.9% |
| Norma URP | <<locked>> | 84% | 33,170 psi | 69% | 2461 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 39,450 psi | 82% | 2575 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 36,898 psi | 77% | 2549 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 56% | 1545 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,667 psi | 81% | 2503 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,592 psi | 72% | 2549 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,590 psi | 68% | 2474 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 35,070 psi | 73% | 2533 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 35,157 psi | 73% | 2461 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,999 psi | 77% | 2467 fps | 95.5% |
| Shooters World Precision | <<locked>> | 80% | 40,045 psi | 84% | 2530 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 39,871 psi | 83% | 2549 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,172 psi | 76% | 2513 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,739 psi | 79% | 2411 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 36,056 psi | 75% | 2470 fps | 98.4% |
| Somchem S365 | 40 gr | 80% | 26,092 psi | 55% | 2303 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 80% | 34,200 psi | 71% | 2405 fps | 99% |
| Vihtavuori N160 | <<locked>> | 82% | 32,590 psi | 68% | 2411 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 40,205 psi | 84% | 2520 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 34,142 psi | 71% | 2464 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 90% | 30,705 psi | 64% | 2451 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,327 psi | 63% | 2333 fps | 96.7% |
| Winchester 760 | <<locked>> | 88% | 40,422 psi | 84% | 2618 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,689 psi | 60% | 2454 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 45 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 150gr | Rhino Solid Shank. Alliant Reloder-26 delivers the highest muzzle velocity at 2,736 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,736 fps. Accurate 3100 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 150.0 gr projectile in 0.284" calls for a 1:12.5 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, Alliant Reloder-16, Somchem S365 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 150gr | Rhino Solid Shank 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.