Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 160gr | Nosler Partition Gold bullet and 41 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 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 3100ᴾ | <<locked>> | 100% | 41,756 psi | 87% | 2546 fps | 97.3% |
| Accurate 4064 | <<locked>> | 82% | 42,670 psi | 89% | 2497 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 41,423 psi | 87% | 2556 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 82% | 41,379 psi | 86% | 2470 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 41,350 psi | 86% | 2493 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 40,988 psi | 86% | 2569 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 86% | 40,727 psi | 85% | 2589 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,059 psi | 84% | 2579 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 41,466 psi | 87% | 2674 fps | 98.6% |
| Bofors RP3 | <<locked>> | 82% | 40,872 psi | 85% | 2497 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 82% | 41,858 psi | 87% | 2507 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 88% | 41,452 psi | 87% | 2552 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 43,004 psi | 90% | 2556 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,708 psi | 75% | 1627 fps | 100% |
| IMR 4831 | <<locked>> | 92% | 42,540 psi | 89% | 2559 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 42,917 psi | 90% | 2503 fps | 97.7% |
| Lovex S070 | <<locked>> | 90% | 43,308 psi | 90% | 2530 fps | 96.8% |
| Norma MRP | <<locked>> | 98% | 41,655 psi | 87% | 2635 fps | 96% |
| Norma URP | <<locked>> | 90% | 41,336 psi | 86% | 2552 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 82% | 43,221 psi | 90% | 2559 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 92% | 43,178 psi | 90% | 2595 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,158 psi | 76% | 1663 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,119 psi | 88% | 2487 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 40,625 psi | 85% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 41,046 psi | 86% | 2575 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 41,002 psi | 86% | 2589 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 84% | 41,075 psi | 86% | 2497 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 42,917 psi | 90% | 2503 fps | 97.7% |
| Shooters World SW4350 | <<locked>> | 90% | 43,308 psi | 90% | 2530 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 42,221 psi | 88% | 2549 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 40,930 psi | 86% | 2379 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,395 psi | 89% | 2451 fps | 96.3% |
| Somchem S355 | <<locked>> | 84% | 41,858 psi | 87% | 2500 fps | 99.7% |
| Somchem S365 | <<locked>> | 94% | 42,206 psi | 88% | 2605 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 42,612 psi | 89% | 2484 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 43,265 psi | 90% | 2549 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 90% | 42,656 psi | 89% | 2556 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 98% | 41,118 psi | 86% | 2598 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 43,192 psi | 90% | 2530 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 41,452 psi | 87% | 2552 fps | 96.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,737 psi | 75% | 2592 fps | 99.7% |
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% | 36,593 psi | 76% | 2448 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 40,190 psi | 84% | 2454 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 29,370 psi | 61% | 2293 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 38,986 psi | 81% | 2421 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,696 psi | 81% | 2444 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,066 psi | 63% | 2306 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,286 psi | 70% | 2421 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 88% | 27,688 psi | 58% | 2274 fps | 95.8% |
| Alliant Reloder-26 | 47.3 gr | 90% | 31,517 psi | 66% | 2434 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 38,479 psi | 80% | 2451 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 80% | 39,189 psi | 82% | 2454 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 38,841 psi | 81% | 2500 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,673 psi | 58% | 2218 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 56% | 1450 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 30,792 psi | 64% | 2310 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 33,649 psi | 70% | 2310 fps | 95% |
| Lovex S070 | <<locked>> | 86% | 38,363 psi | 80% | 2434 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 39,044 psi | 82% | 2579 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 29,950 psi | 63% | 2297 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 40,466 psi | 85% | 2510 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 35,476 psi | 74% | 2434 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,832 psi | 56% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,494 psi | 83% | 2438 fps | 96.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,404 psi | 74% | 2480 fps | 100% |
| ReloadSwiss RS 62 | 42 gr | 82% | 31,256 psi | 65% | 2359 fps | 95.4% |
| ReloadSwiss RS 70 | 43.8 gr | 84% | 33,649 psi | 70% | 2421 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 36,114 psi | 75% | 2398 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 33,649 psi | 70% | 2310 fps | 95% |
| Shooters World SW4350 | <<locked>> | 86% | 38,363 psi | 80% | 2434 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,985 psi | 77% | 2444 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,522 psi | 80% | 2339 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 39,914 psi | 83% | 2405 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 36,970 psi | 77% | 2405 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 26,818 psi | 56% | 2254 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 80% | 35,114 psi | 73% | 2343 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 31,198 psi | 65% | 2297 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 30,806 psi | 64% | 2303 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 86% | 27,789 psi | 58% | 2293 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,024 psi | 65% | 2277 fps | 97.6% |
| Winchester 760 | <<locked>> | 86% | 38,841 psi | 81% | 2500 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,107 psi | 55% | 2293 fps | 95.2% |
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 41 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 160gr | Nosler Partition Gold. Alliant Reloder-26 delivers the highest muzzle velocity at 2,674 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,674 fps. Accurate 3100 gives the best case fill at 100 %, and 41 of the 41 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.5 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, ReloadSwiss RS 70, ReloadSwiss RS 62 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 160gr | Nosler Partition Gold 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.