Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 154gr | Reichenberg HDB Universal bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, 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% | 43,221 psi | 90% | 2513 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 39,537 psi | 83% | 2546 fps | 96.1% |
| Accurate 4064 | <<locked>> | 82% | 40,843 psi | 85% | 2513 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 42,134 psi | 88% | 2612 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 84% | 42,308 psi | 88% | 2530 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 42,859 psi | 90% | 2667 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,119 psi | 88% | 2552 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 42,511 psi | 89% | 2566 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 92% | 41,597 psi | 87% | 2621 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,785 psi | 87% | 2651 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,043 psi | 79% | 2575 fps | 99% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,322 psi | 88% | 2726 fps | 98.3% |
| Bofors RP3 | <<locked>> | 84% | 41,916 psi | 88% | 2562 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 42,714 psi | 89% | 2566 fps | 98% |
| Hodgdon H414 | <<locked>> | 90% | 42,192 psi | 88% | 2608 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 40,959 psi | 86% | 2562 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 43,105 psi | 90% | 2608 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,433 psi | 74% | 1650 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 41,887 psi | 88% | 2513 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 43,265 psi | 90% | 2615 fps | 98.7% |
| Lovex S062 | <<locked>> | 82% | 41,800 psi | 87% | 2516 fps | 99.8% |
| Lovex S065 | <<locked>> | 88% | 41,089 psi | 86% | 2507 fps | 96.8% |
| Lovex S070 | <<locked>> | 90% | 41,698 psi | 87% | 2539 fps | 95.8% |
| Norma 203B | <<locked>> | 82% | 41,829 psi | 87% | 2556 fps | 99.2% |
| Norma URP | <<locked>> | 92% | 42,032 psi | 88% | 2608 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 82% | 41,437 psi | 87% | 2572 fps | 99% |
| Ramshot Hunter | <<locked>> | 92% | 41,307 psi | 86% | 2598 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,853 psi | 75% | 1690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,265 psi | 90% | 2549 fps | 96.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,394 psi | 86% | 2651 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 41,684 psi | 87% | 2631 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,930 psi | 88% | 2644 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 86% | 42,105 psi | 88% | 2559 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,089 psi | 86% | 2507 fps | 96.8% |
| Shooters World Precision | <<locked>> | 82% | 41,800 psi | 87% | 2516 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 90% | 41,698 psi | 87% | 2539 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 43,279 psi | 90% | 2612 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 41,872 psi | 87% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,308 psi | 90% | 2507 fps | 96% |
| Somchem S355 | <<locked>> | 86% | 42,714 psi | 89% | 2559 fps | 99.5% |
| Somchem S365 | <<locked>> | 96% | 42,888 psi | 90% | 2664 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 43,163 psi | 90% | 2507 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 40,901 psi | 85% | 2497 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 90% | 41,191 psi | 86% | 2552 fps | 98% |
| Vihtavuori N540 | <<locked>> | 82% | 42,134 psi | 88% | 2510 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 40,669 psi | 85% | 2562 fps | 97.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,350 psi | 86% | 2648 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,495 psi | 87% | 2539 fps | 99.5% |
| Winchester 760 | <<locked>> | 90% | 42,192 psi | 88% | 2608 fps | 95.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,156 psi | 71% | 2582 fps | 98.9% |
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% | 40,654 psi | 85% | 2470 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 36,825 psi | 77% | 2490 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 38,450 psi | 80% | 2467 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 31,894 psi | 67% | 2395 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 37,579 psi | 79% | 2434 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,885 psi | 83% | 2605 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,115 psi | 78% | 2457 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,784 psi | 83% | 2513 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,692 psi | 68% | 2415 fps | 95.7% |
| Alliant Reloder-17 | 40.6 gr | 80% | 31,966 psi | 67% | 2425 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,152 psi | 59% | 2323 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 34,418 psi | 72% | 2546 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 36,579 psi | 76% | 2457 fps | 99% |
| Hodgdon H380 | <<locked>> | 80% | 37,362 psi | 78% | 2457 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 39,508 psi | 83% | 2556 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,137 psi | 59% | 2267 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,292 psi | 84% | 2559 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 55% | 1470 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,436 psi | 82% | 2464 fps | 98.4% |
| IMR 4831 | <<locked>> | 84% | 31,241 psi | 65% | 2362 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 39,407 psi | 82% | 2470 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 36,622 psi | 77% | 2415 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 39,073 psi | 82% | 2487 fps | 95% |
| Norma 203B | <<locked>> | 80% | 39,146 psi | 82% | 2503 fps | 98.8% |
| Norma URP | <<locked>> | 84% | 32,561 psi | 68% | 2402 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 38,522 psi | 80% | 2513 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 38,711 psi | 81% | 2546 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 56% | 1509 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,058 psi | 80% | 2444 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,997 psi | 71% | 2487 fps | 99.7% |
| ReloadSwiss RS 62 | 42.6 gr | 84% | 31,923 psi | 67% | 2415 fps | 95% |
| ReloadSwiss RS 70 | 45.4 gr | 88% | 36,840 psi | 77% | 2533 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 34,534 psi | 72% | 2405 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,622 psi | 77% | 2415 fps | 95.5% |
| Shooters World Precision | <<locked>> | 80% | 39,407 psi | 82% | 2470 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 39,073 psi | 82% | 2487 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,505 psi | 74% | 2454 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,028 psi | 77% | 2356 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 40,785 psi | 85% | 2461 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 35,447 psi | 74% | 2411 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 25,672 psi | 54% | 2251 fps | 96.1% |
| Vihtavuori N135 | <<locked>> | 80% | 40,553 psi | 85% | 2464 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,649 psi | 70% | 2352 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 31,937 psi | 67% | 2352 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 39,494 psi | 83% | 2464 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,359 psi | 70% | 2405 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 30,023 psi | 63% | 2395 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,733 psi | 62% | 2277 fps | 96.5% |
| Winchester 760 | <<locked>> | 88% | 39,508 psi | 83% | 2556 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,210 psi | 59% | 2395 fps | 95.8% |
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 7 mm Mag. Fl. H&H loaded with the .284 | 154gr | Reichenberg HDB Universal. Alliant Reloder-26 delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,650 fps to 2,726 fps. Accurate 3100 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 (330 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 70, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 154gr | Reichenberg HDB Universal 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.