Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 139gr | Hornady GMX bullet and 60 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 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.
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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 40,466 psi | 85% | 2615 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 40,930 psi | 86% | 2661 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 42,525 psi | 89% | 2756 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 82% | 42,395 psi | 89% | 2680 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 86% | 41,133 psi | 86% | 2638 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 41,365 psi | 86% | 2766 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 43,018 psi | 90% | 2707 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 84% | 40,640 psi | 85% | 2667 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,482 psi | 89% | 2766 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 92% | 42,699 psi | 89% | 2802 fps | 99.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,750 psi | 71% | 2595 fps | 96.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,727 psi | 87% | 2684 fps | 97.4% |
| Bofors RP3 | <<locked>> | 88% | 42,409 psi | 89% | 2710 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,989 psi | 90% | 2713 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 86% | 40,944 psi | 86% | 2661 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 82% | 42,728 psi | 89% | 2694 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 41,582 psi | 87% | 2707 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 41,263 psi | 86% | 2713 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,722 psi | 73% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 41,278 psi | 86% | 2648 fps | 98.7% |
| IMR 3031 | <<locked>> | 82% | 42,134 psi | 88% | 2694 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 43,192 psi | 90% | 2671 fps | 98.3% |
| IMR 4831 | <<locked>> | 96% | 40,930 psi | 86% | 2707 fps | 97.2% |
| IMR 4895 | <<locked>> | 84% | 41,626 psi | 87% | 2697 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 82% | 41,191 psi | 86% | 2661 fps | 99.9% |
| Lovex S060 | <<locked>> | 82% | 43,178 psi | 90% | 2628 fps | 98.6% |
| Lovex S062 | <<locked>> | 86% | 42,467 psi | 89% | 2667 fps | 99.4% |
| Lovex S065 | <<locked>> | 92% | 41,858 psi | 87% | 2651 fps | 95.8% |
| Norma 201 | <<locked>> | 82% | 41,539 psi | 87% | 2635 fps | 99.2% |
| Norma 202 | <<locked>> | 82% | 41,829 psi | 87% | 2648 fps | 100% |
| Norma 203B | <<locked>> | 86% | 42,714 psi | 89% | 2710 fps | 98.6% |
| Norma URP | <<locked>> | 96% | 42,569 psi | 89% | 2753 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 86% | 42,409 psi | 89% | 2723 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,983 psi | 73% | 1772 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,453 psi | 89% | 2769 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 42,699 psi | 89% | 2812 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,351 psi | 88% | 2776 fps | 97.2% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 43,178 psi | 90% | 2792 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 84% | 41,829 psi | 87% | 2635 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 90% | 42,598 psi | 89% | 2707 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,858 psi | 87% | 2651 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 41,191 psi | 86% | 2661 fps | 99.9% |
| Shooters World Precision | <<locked>> | 86% | 42,467 psi | 89% | 2667 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,423 psi | 87% | 2710 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,525 psi | 89% | 2661 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 40,959 psi | 86% | 2651 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 43,076 psi | 90% | 2598 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,743 psi | 89% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,511 psi | 89% | 2667 fps | 98.4% |
| Somchem S355 | <<locked>> | 88% | 40,625 psi | 85% | 2654 fps | 98.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,207 psi | 90% | 2808 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 84% | 41,234 psi | 86% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,293 psi | 88% | 2631 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 41,742 psi | 87% | 2648 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 94% | 42,105 psi | 88% | 2700 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 84% | 40,582 psi | 85% | 2621 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 41,278 psi | 86% | 2703 fps | 96.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,187 psi | 76% | 2674 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 42,830 psi | 89% | 2687 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 84% | 43,091 psi | 90% | 2707 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 2495 | <<locked>> | 80% | 35,346 psi | 74% | 2520 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,460 psi | 70% | 2507 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 34,127 psi | 71% | 2579 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 39,929 psi | 83% | 2628 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 33,866 psi | 71% | 2477 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 35,940 psi | 75% | 2638 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,953 psi | 69% | 2493 fps | 97% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,737 psi | 75% | 2559 fps | 96.3% |
| Alliant Reloder-16 | 42.7 gr | 90% | 35,346 psi | 74% | 2602 fps | 95.3% |
| Alliant Reloder-17 | 41.9 gr | 82% | 30,458 psi | 64% | 2500 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,821 psi | 66% | 2543 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,812 psi | 81% | 2625 fps | 96.6% |
| Bofors RP3 | <<locked>> | 80% | 32,242 psi | 67% | 2490 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,176 psi | 84% | 2657 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 84% | 38,261 psi | 80% | 2605 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 40,234 psi | 84% | 2641 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,211 psi | 63% | 2441 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,056 psi | 75% | 2605 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,686 psi | 54% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,595 psi | 81% | 2592 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 39,479 psi | 82% | 2644 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,505 psi | 74% | 2510 fps | 96.3% |
| IMR 4831 | <<locked>> | 92% | 35,636 psi | 74% | 2595 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 36,564 psi | 76% | 2592 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 38,435 psi | 80% | 2608 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 40,422 psi | 84% | 2572 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 35,128 psi | 73% | 2513 fps | 98% |
| Lovex S065 | <<locked>> | 90% | 39,465 psi | 82% | 2602 fps | 95% |
| Norma 201 | <<locked>> | 80% | 38,856 psi | 81% | 2582 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 39,088 psi | 82% | 2595 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,114 psi | 73% | 2546 fps | 96.7% |
| Norma URP | <<locked>> | 90% | 35,172 psi | 73% | 2592 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 34,519 psi | 72% | 2552 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,020 psi | 54% | 1585 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,869 psi | 77% | 2651 fps | 96.7% |
| ReloadSwiss RS 60 | 40.9 gr | 80% | 30,429 psi | 64% | 2513 fps | 97.8% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,956 psi | 77% | 2661 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,422 psi | 84% | 2733 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 37,057 psi | 77% | 2536 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 30,182 psi | 63% | 2431 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,465 psi | 82% | 2602 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,435 psi | 80% | 2608 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,128 psi | 73% | 2513 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,502 psi | 66% | 2484 fps | 95.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,740 psi | 83% | 2608 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,305 psi | 80% | 2595 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,330 psi | 70% | 2411 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 40,045 psi | 84% | 2549 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,508 psi | 83% | 2608 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 31,357 psi | 66% | 2444 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 27,456 psi | 57% | 2425 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 36,013 psi | 75% | 2523 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,912 psi | 77% | 2530 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 29,733 psi | 62% | 2385 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 36,767 psi | 77% | 2589 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 35,534 psi | 74% | 2520 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 36,100 psi | 75% | 2595 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 98% | 33,765 psi | 71% | 2618 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,487 psi | 64% | 2408 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,681 psi | 79% | 2598 fps | 98% |
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 60 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 139gr | Hornady GMX. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,812 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,812 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 60 of the 60 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 139.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon TrailBoss, ReloadSwiss RS 14 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, Alliant Reloder-16 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 139gr | Hornady GMX 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.