Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 155gr | Federal Terminal Ascent Component 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 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% | 40,698 psi | 85% | 2448 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 40,959 psi | 86% | 2490 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 42,061 psi | 88% | 2582 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 86% | 42,873 psi | 90% | 2507 fps | 98.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 40,538 psi | 85% | 2585 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,612 psi | 89% | 2533 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,989 psi | 90% | 2546 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,989 psi | 88% | 2595 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 41,945 psi | 88% | 2621 fps | 99.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,897 psi | 75% | 2497 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,581 psi | 83% | 2635 fps | 97.1% |
| Bofors RP3 | <<locked>> | 86% | 42,163 psi | 88% | 2539 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 86% | 43,163 psi | 90% | 2543 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 41,075 psi | 86% | 2533 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 40,741 psi | 85% | 2536 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,215 psi | 74% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 43,192 psi | 90% | 2516 fps | 99.4% |
| IMR 4064 | <<locked>> | 84% | 42,612 psi | 89% | 2493 fps | 98.7% |
| IMR 4831 | <<locked>> | 94% | 40,654 psi | 85% | 2539 fps | 97.9% |
| IMR 4895 | <<locked>> | 82% | 41,379 psi | 86% | 2526 fps | 99% |
| Lovex S062 | <<locked>> | 84% | 42,177 psi | 88% | 2493 fps | 99.7% |
| Lovex S065 | <<locked>> | 90% | 41,568 psi | 87% | 2487 fps | 96.6% |
| Norma 203B | <<locked>> | 84% | 42,293 psi | 88% | 2536 fps | 99.1% |
| Norma URP | <<locked>> | 94% | 42,322 psi | 88% | 2582 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 84% | 41,872 psi | 87% | 2549 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 94% | 41,350 psi | 86% | 2569 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,636 psi | 74% | 1654 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,134 psi | 88% | 2592 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 42,061 psi | 88% | 2631 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,901 psi | 88% | 2605 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,279 psi | 88% | 2615 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 82% | 41,597 psi | 87% | 2461 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 88% | 42,366 psi | 89% | 2533 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,568 psi | 87% | 2487 fps | 96.6% |
| Shooters World Precision | <<locked>> | 84% | 42,177 psi | 88% | 2493 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 40,857 psi | 85% | 2536 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 43,221 psi | 90% | 2526 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,699 psi | 89% | 2425 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 42,989 psi | 90% | 2533 fps | 99.4% |
| Somchem S365 | <<locked>> | 98% | 42,815 psi | 89% | 2635 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 40,886 psi | 85% | 2441 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,814 psi | 87% | 2457 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 41,307 psi | 86% | 2474 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 92% | 41,524 psi | 87% | 2530 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 84% | 42,728 psi | 89% | 2493 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 40,727 psi | 85% | 2533 fps | 97.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,595 psi | 81% | 2566 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,814 psi | 87% | 2513 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,068 psi | 67% | 2484 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,525 psi | 89% | 2530 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 2495 | <<locked>> | 80% | 38,392 psi | 80% | 2408 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,289 psi | 76% | 2402 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 32,039 psi | 67% | 2375 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 35,810 psi | 75% | 2365 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,840 psi | 79% | 2526 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,230 psi | 74% | 2388 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,666 psi | 79% | 2441 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 33,069 psi | 69% | 2392 fps | 95.4% |
| Alliant Reloder-17 | 38.3 gr | 80% | 30,226 psi | 63% | 2346 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,965 psi | 63% | 2346 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 34,447 psi | 72% | 2513 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 34,432 psi | 72% | 2385 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 80% | 35,462 psi | 74% | 2388 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,268 psi | 59% | 2241 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,218 psi | 80% | 2487 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 55% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,582 psi | 85% | 2467 fps | 99.1% |
| IMR 4064 | <<locked>> | 80% | 37,565 psi | 78% | 2398 fps | 97.7% |
| IMR 4831 | <<locked>> | 88% | 33,272 psi | 70% | 2385 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 38,537 psi | 81% | 2470 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 37,463 psi | 78% | 2405 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 36,767 psi | 77% | 2388 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 37,028 psi | 77% | 2431 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 32,866 psi | 69% | 2382 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 36,477 psi | 76% | 2441 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 38,899 psi | 81% | 2516 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,614 psi | 56% | 1480 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,160 psi | 82% | 2533 fps | 98.1% |
| ReloadSwiss RS 60 | 38.3 gr | 80% | 32,155 psi | 67% | 2411 fps | 99.1% |
| ReloadSwiss RS 62 | 42.1 gr | 88% | 34,171 psi | 71% | 2441 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 37,130 psi | 78% | 2503 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 39,102 psi | 82% | 2415 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 32,648 psi | 68% | 2339 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 36,767 psi | 77% | 2388 fps | 95.1% |
| Shooters World Precision | <<locked>> | 80% | 37,463 psi | 78% | 2405 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,446 psi | 70% | 2379 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,335 psi | 84% | 2474 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,418 psi | 74% | 2297 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 33,634 psi | 70% | 2346 fps | 97.6% |
| Somchem S365 | <<locked>> | 82% | 25,904 psi | 54% | 2231 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 38,537 psi | 81% | 2402 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,233 psi | 82% | 2411 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,908 psi | 67% | 2287 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 86% | 34,301 psi | 72% | 2382 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 37,521 psi | 78% | 2398 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 33,518 psi | 70% | 2382 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 92% | 29,878 psi | 62% | 2365 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,326 psi | 59% | 2208 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 28,282 psi | 59% | 2359 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,682 psi | 83% | 2477 fps | 99% |
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 | 155gr | Federal Terminal Ascent Component. Alliant Reloder-26 delivers the highest muzzle velocity at 2,635 fps; across all powders the maximum-charge window runs from 1,614 fps to 2,635 fps. Alliant Reloder-23 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 67–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, 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. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 155gr | Federal Terminal Ascent Component 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.