Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 133gr | MRR Green Hunting bullet and 51 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% | 42,467 psi | 89% | 2710 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 42,685 psi | 89% | 2753 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 41,147 psi | 86% | 2789 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 86% | 41,930 psi | 88% | 2713 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,482 psi | 89% | 2851 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 41,423 psi | 87% | 2740 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 84% | 41,858 psi | 87% | 2753 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,104 psi | 86% | 2795 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 90% | 41,205 psi | 86% | 2831 fps | 98.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,114 psi | 73% | 2684 fps | 96.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,699 psi | 89% | 2766 fps | 97.4% |
| Bofors RP3 | <<locked>> | 86% | 41,133 psi | 86% | 2746 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 42,409 psi | 89% | 2749 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,873 psi | 90% | 2792 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,554 psi | 89% | 2802 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,969 psi | 73% | 1788 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,482 psi | 89% | 2733 fps | 98.7% |
| IMR 4064 | <<locked>> | 84% | 41,626 psi | 87% | 2700 fps | 97.7% |
| IMR 4831 | <<locked>> | 96% | 42,076 psi | 88% | 2789 fps | 97.3% |
| IMR 4895 | <<locked>> | 84% | 42,888 psi | 90% | 2785 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 82% | 42,612 psi | 89% | 2749 fps | 99.9% |
| Lovex S062 | <<locked>> | 84% | 41,379 psi | 86% | 2707 fps | 99.1% |
| Lovex S065 | <<locked>> | 92% | 43,134 psi | 90% | 2736 fps | 95.8% |
| Norma 201 | <<locked>> | 82% | 42,830 psi | 89% | 2720 fps | 99.3% |
| Norma 202 | <<locked>> | 82% | 42,960 psi | 90% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 84% | 41,176 psi | 86% | 2740 fps | 98.1% |
| Norma URP | <<locked>> | 94% | 41,133 psi | 86% | 2785 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 84% | 40,886 psi | 85% | 2756 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,273 psi | 74% | 1827 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 40,785 psi | 85% | 2795 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 41,017 psi | 86% | 2841 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 40,756 psi | 85% | 2802 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 82% | 40,669 psi | 85% | 2667 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 88% | 41,031 psi | 86% | 2736 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 43,134 psi | 90% | 2736 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 42,612 psi | 89% | 2749 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 41,379 psi | 86% | 2707 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,569 psi | 89% | 2795 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 42,076 psi | 88% | 2733 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 41,727 psi | 87% | 2635 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 42,192 psi | 88% | 2746 fps | 98.7% |
| Somchem S365 | <<locked>> | 98% | 41,843 psi | 87% | 2844 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 84% | 42,496 psi | 89% | 2703 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 43,250 psi | 90% | 2713 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 42,815 psi | 89% | 2726 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 92% | 40,480 psi | 85% | 2730 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 84% | 41,771 psi | 87% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 42,583 psi | 89% | 2789 fps | 96.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,536 psi | 78% | 2762 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,118 psi | 86% | 2713 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,408 psi | 87% | 2736 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 2495 | <<locked>> | 80% | 37,144 psi | 78% | 2612 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,128 psi | 73% | 2598 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 35,621 psi | 74% | 2671 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 34,925 psi | 73% | 2556 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,985 psi | 77% | 2723 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,142 psi | 71% | 2575 fps | 97.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,898 psi | 77% | 2641 fps | 96.4% |
| Alliant Reloder-16 | 44.3 gr | 90% | 36,535 psi | 76% | 2687 fps | 95.4% |
| Alliant Reloder-17 | 43.4 gr | 82% | 31,517 psi | 66% | 2585 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 33,040 psi | 69% | 2628 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,103 psi | 84% | 2710 fps | 96.7% |
| Bofors RP3 | <<locked>> | 80% | 33,547 psi | 70% | 2575 fps | 97% |
| Hodgdon H380 | <<locked>> | 84% | 39,479 psi | 82% | 2690 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,314 psi | 65% | 2523 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,231 psi | 78% | 2687 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,991 psi | 54% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,871 psi | 83% | 2677 fps | 98.2% |
| IMR 4064 | <<locked>> | 80% | 36,622 psi | 77% | 2592 fps | 96.4% |
| IMR 4831 | <<locked>> | 92% | 36,912 psi | 77% | 2677 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 37,724 psi | 79% | 2674 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 80% | 39,653 psi | 83% | 2690 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 36,419 psi | 76% | 2598 fps | 98.1% |
| Lovex S065 | <<locked>> | 90% | 40,553 psi | 85% | 2684 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 40,219 psi | 84% | 2667 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 40,277 psi | 84% | 2680 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,260 psi | 76% | 2631 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 36,158 psi | 76% | 2671 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 35,578 psi | 74% | 2635 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,353 psi | 55% | 1637 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,145 psi | 80% | 2736 fps | 96.8% |
| ReloadSwiss RS 60 | 42.4 gr | 80% | 31,546 psi | 66% | 2598 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,247 psi | 80% | 2746 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 38,189 psi | 80% | 2615 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 31,517 psi | 66% | 2516 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,553 psi | 85% | 2684 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,653 psi | 83% | 2690 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 36,419 psi | 76% | 2598 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,677 psi | 68% | 2566 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,537 psi | 83% | 2680 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,476 psi | 72% | 2490 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 32,605 psi | 68% | 2530 fps | 96.1% |
| Somchem S365 | <<locked>> | 86% | 28,558 psi | 60% | 2507 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 37,391 psi | 78% | 2608 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,043 psi | 79% | 2612 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,850 psi | 64% | 2464 fps | 97% |
| Vihtavuori N160 | <<locked>> | 90% | 37,942 psi | 79% | 2674 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 36,825 psi | 77% | 2602 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 37,246 psi | 78% | 2677 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 98% | 35,157 psi | 73% | 2707 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,546 psi | 66% | 2490 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,856 psi | 81% | 2680 fps | 98.1% |
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 51 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 133gr | MRR Green Hunting. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,851 fps; across all powders the maximum-charge window runs from 1,788 fps to 2,851 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 51 of the 51 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 133.0 gr projectile in 0.284" calls for a 1:12.0 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Reloder-16 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 133gr | MRR Green Hunting 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.