Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 160gr | Brenneke TAG bullet and 48 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Somchem S365 and ReloadSwiss RS 70.
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 3100ᴾ | <<locked>> | 100% | 40,712 psi | 85% | 2539 fps | 97.1% |
| Accurate 4064 | <<locked>> | 82% | 41,582 psi | 87% | 2490 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 40,538 psi | 85% | 2549 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 82% | 40,625 psi | 85% | 2467 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,946 psi | 90% | 2536 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 82% | 43,308 psi | 90% | 2549 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,873 psi | 90% | 2615 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,830 psi | 89% | 2638 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,030 psi | 82% | 2569 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 40,814 psi | 85% | 2671 fps | 98.5% |
| Bofors RP3 | <<locked>> | 84% | 42,902 psi | 90% | 2546 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 82% | 40,872 psi | 85% | 2500 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 90% | 43,294 psi | 90% | 2598 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 42,018 psi | 88% | 2549 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 90% | 43,149 psi | 90% | 2621 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,418 psi | 74% | 1627 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,685 psi | 89% | 2497 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,743 psi | 89% | 2500 fps | 96.3% |
| IMR 4831 | <<locked>> | 92% | 41,742 psi | 87% | 2556 fps | 98.8% |
| Lovex S062 | <<locked>> | 82% | 42,525 psi | 89% | 2497 fps | 99.9% |
| Lovex S065 | <<locked>> | 88% | 42,206 psi | 88% | 2500 fps | 97.7% |
| Lovex S070 | <<locked>> | 90% | 42,569 psi | 89% | 2530 fps | 96.7% |
| Norma 203B | <<locked>> | 82% | 42,627 psi | 89% | 2536 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 40,611 psi | 85% | 2549 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 82% | 42,598 psi | 89% | 2559 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 92% | 42,221 psi | 88% | 2589 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,810 psi | 75% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,495 psi | 87% | 2487 fps | 96.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 42,743 psi | 89% | 2641 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 43,091 psi | 90% | 2621 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 43,076 psi | 90% | 2641 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 86% | 42,801 psi | 89% | 2536 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 42,206 psi | 88% | 2500 fps | 97.7% |
| Shooters World Precision | <<locked>> | 82% | 42,525 psi | 89% | 2497 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 90% | 42,569 psi | 89% | 2530 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 41,597 psi | 87% | 2546 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,931 psi | 90% | 2421 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,626 psi | 87% | 2448 fps | 96.2% |
| Somchem S355 | <<locked>> | 84% | 40,901 psi | 85% | 2493 fps | 99.6% |
| Somchem S365 | <<locked>> | 94% | 41,437 psi | 87% | 2602 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 41,655 psi | 87% | 2477 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 42,627 psi | 89% | 2549 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 82% | 43,105 psi | 90% | 2490 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 41,655 psi | 87% | 2546 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,772 psi | 89% | 2638 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 42,569 psi | 89% | 2530 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 40,799 psi | 85% | 2552 fps | 96.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,824 psi | 73% | 2582 fps | 99.6% |
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 3100 | <<locked>> | 96% | 35,302 psi | 74% | 2431 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 38,870 psi | 81% | 2444 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,385 psi | 63% | 2329 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 38,276 psi | 80% | 2418 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,840 psi | 79% | 2438 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,799 psi | 85% | 2503 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,299 psi | 65% | 2352 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,619 psi | 68% | 2418 fps | 98.2% |
| Alliant Reloder-23 | <<locked>> | 88% | 26,963 psi | 56% | 2264 fps | 95.5% |
| Alliant Reloder-26 | 48.8 gr | 92% | 32,953 psi | 69% | 2487 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 37,391 psi | 78% | 2444 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 38,247 psi | 80% | 2448 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 37,898 psi | 79% | 2493 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,818 psi | 56% | 2205 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 88% | 40,147 psi | 84% | 2559 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,368 psi | 55% | 1453 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,205 psi | 84% | 2451 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,089 psi | 84% | 2451 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 29,820 psi | 62% | 2300 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 40,030 psi | 84% | 2451 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 34,969 psi | 73% | 2352 fps | 95.6% |
| Lovex S070 | <<locked>> | 86% | 37,376 psi | 78% | 2425 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 40,147 psi | 84% | 2490 fps | 99.3% |
| Norma URP | <<locked>> | 82% | 31,140 psi | 65% | 2339 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 39,610 psi | 83% | 2503 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 34,751 psi | 73% | 2428 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,803 psi | 56% | 1493 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,638 psi | 81% | 2431 fps | 96% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,809 psi | 73% | 2480 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 30,472 psi | 64% | 2352 fps | 95.1% |
| ReloadSwiss RS 70 | 44.1 gr | 84% | 32,779 psi | 68% | 2411 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 35,041 psi | 73% | 2388 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,969 psi | 73% | 2352 fps | 95.6% |
| Shooters World Precision | <<locked>> | 80% | 40,030 psi | 84% | 2451 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 37,376 psi | 78% | 2425 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,129 psi | 75% | 2438 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,753 psi | 79% | 2336 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 38,928 psi | 81% | 2398 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 36,013 psi | 75% | 2395 fps | 98.9% |
| Somchem S365 | 39.2 gr | 80% | 25,918 psi | 54% | 2238 fps | 97% |
| Vihtavuori N150 | <<locked>> | 80% | 34,200 psi | 71% | 2333 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 30,530 psi | 64% | 2293 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 40,393 psi | 84% | 2444 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 31,923 psi | 67% | 2343 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 28,616 psi | 60% | 2329 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,400 psi | 64% | 2274 fps | 97.5% |
| Winchester 760 | <<locked>> | 86% | 38,159 psi | 80% | 2497 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 92% | 26,745 psi | 56% | 2333 fps | 95.9% |
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 48 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 160gr | Brenneke TAG. Alliant Reloder-26 delivers the highest muzzle velocity at 2,671 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,671 fps. Accurate 3100 gives the best case fill at 100 %, and 48 of the 48 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 160.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, 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. Alliant Reloder-26, Somchem S365, ReloadSwiss RS 70 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 160gr | Brenneke TAG 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.