Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 140gr | Remington Ballistic Tip bullet and 39 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, Alliant Reloder-26 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 4064 | <<locked>> | 82% | 41,350 psi | 86% | 2671 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 43,018 psi | 90% | 2776 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 84% | 42,815 psi | 89% | 2687 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,583 psi | 89% | 2713 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 82% | 43,018 psi | 90% | 2726 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,322 psi | 88% | 2785 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,250 psi | 88% | 2812 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,653 psi | 81% | 2733 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 40,234 psi | 84% | 2828 fps | 97.2% |
| Bofors RP3 | <<locked>> | 84% | 42,424 psi | 89% | 2720 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 82% | 40,553 psi | 85% | 2667 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 41,611 psi | 87% | 2720 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 74% | 1768 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,380 psi | 89% | 2671 fps | 98.6% |
| IMR 4831 | <<locked>> | 92% | 41,075 psi | 86% | 2720 fps | 97.9% |
| Lovex S062 | <<locked>> | 82% | 42,279 psi | 88% | 2674 fps | 99.6% |
| Lovex S065 | <<locked>> | 88% | 41,698 psi | 87% | 2664 fps | 96.5% |
| Norma 203B | <<locked>> | 82% | 42,366 psi | 89% | 2717 fps | 99% |
| Norma URP | <<locked>> | 92% | 42,699 psi | 89% | 2766 fps | 98% |
| Ramshot Big Game | <<locked>> | 82% | 41,945 psi | 88% | 2730 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 92% | 42,003 psi | 88% | 2759 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,998 psi | 75% | 1814 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 42,105 psi | 88% | 2815 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,598 psi | 89% | 2792 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,554 psi | 89% | 2805 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 86% | 42,540 psi | 89% | 2717 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,698 psi | 87% | 2664 fps | 96.5% |
| Shooters World Precision | <<locked>> | 82% | 42,279 psi | 88% | 2674 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 41,031 psi | 86% | 2717 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,395 psi | 89% | 2598 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 43,279 psi | 90% | 2720 fps | 99.4% |
| Somchem S365 | <<locked>> | 94% | 41,002 psi | 86% | 2779 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 86% | 41,365 psi | 86% | 2651 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 90% | 41,959 psi | 88% | 2713 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 82% | 42,728 psi | 89% | 2671 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 41,220 psi | 86% | 2717 fps | 97.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,467 psi | 89% | 2815 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,945 psi | 88% | 2694 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,650 psi | 72% | 2730 fps | 98.6% |
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 4064 | <<locked>> | 80% | 38,856 psi | 81% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,460 psi | 68% | 2543 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 37,942 psi | 79% | 2585 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,434 psi | 78% | 2605 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,248 psi | 84% | 2671 fps | 98.1% |
| Alliant Reloder-16 | 43.3 gr | 84% | 33,098 psi | 69% | 2559 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,416 psi | 68% | 2572 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,313 psi | 63% | 2513 fps | 95.8% |
| Alliant Reloder-26 | 53.5 gr | 94% | 35,186 psi | 74% | 2703 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 37,188 psi | 78% | 2612 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 80% | 37,898 psi | 79% | 2612 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,500 psi | 60% | 2405 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,484 psi | 55% | 1585 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,842 psi | 83% | 2618 fps | 98.1% |
| IMR 4831 | <<locked>> | 86% | 33,823 psi | 71% | 2559 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 39,784 psi | 83% | 2625 fps | 99.3% |
| Lovex S065 | <<locked>> | 84% | 37,014 psi | 77% | 2566 fps | 95% |
| Norma 203B | <<locked>> | 80% | 39,624 psi | 83% | 2657 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 33,112 psi | 69% | 2552 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 39,233 psi | 82% | 2674 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 39,305 psi | 82% | 2700 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,643 psi | 56% | 1617 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,490 psi | 72% | 2641 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,722 psi | 73% | 2621 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,318 psi | 78% | 2684 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 35,041 psi | 73% | 2556 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 84% | 37,014 psi | 77% | 2566 fps | 95% |
| Shooters World Precision | <<locked>> | 80% | 39,784 psi | 83% | 2625 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,882 psi | 75% | 2605 fps | 97.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,405 psi | 78% | 2507 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 35,810 psi | 75% | 2562 fps | 98% |
| Somchem S365 | 42.1 gr | 80% | 26,020 psi | 54% | 2388 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 34,142 psi | 71% | 2500 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 34,418 psi | 72% | 2549 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 39,987 psi | 84% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,953 psi | 71% | 2552 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 90% | 30,589 psi | 64% | 2539 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,139 psi | 63% | 2418 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,572 psi | 60% | 2530 fps | 95.1% |
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 39 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 140gr | Remington Ballistic Tip. Alliant Reloder-26 delivers the highest muzzle velocity at 2,828 fps; across all powders the maximum-charge window runs from 1,768 fps to 2,828 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 39 of the 39 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:15.0 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. Alliant Reloder-16, Alliant Reloder-26, Somchem S365 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 140gr | Remington Ballistic Tip 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.