Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 160gr | Barnes TSX FB bullet and 52 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Somchem S365 and Alliant Reloder-17.
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>> | 82% | 41,553 psi | 87% | 2438 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 38,087 psi | 80% | 2470 fps | 96% |
| Accurate 4064 | <<locked>> | 84% | 41,887 psi | 88% | 2480 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 40,640 psi | 85% | 2536 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 84% | 41,437 psi | 87% | 2461 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 41,930 psi | 88% | 2595 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 40,886 psi | 85% | 2480 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 82% | 41,234 psi | 86% | 2493 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 43,308 psi | 90% | 2602 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 88% | 40,669 psi | 85% | 2579 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,028 psi | 77% | 2507 fps | 99% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,988 psi | 86% | 2651 fps | 98.2% |
| Bofors RP3 | <<locked>> | 84% | 40,538 psi | 85% | 2487 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 41,524 psi | 87% | 2493 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 42,714 psi | 89% | 2543 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 42,293 psi | 88% | 2543 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,128 psi | 73% | 1604 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 40,915 psi | 85% | 2444 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 42,018 psi | 88% | 2543 fps | 98.7% |
| IMR 4895 | <<locked>> | 82% | 42,264 psi | 88% | 2523 fps | 99.4% |
| Lovex S062 | <<locked>> | 84% | 43,265 psi | 90% | 2490 fps | 99.9% |
| Lovex S065 | <<locked>> | 90% | 42,743 psi | 89% | 2490 fps | 97.5% |
| Lovex S070 | <<locked>> | 92% | 43,221 psi | 90% | 2520 fps | 96.5% |
| Norma 203B | <<locked>> | 82% | 40,567 psi | 85% | 2480 fps | 99.2% |
| Norma URP | <<locked>> | 92% | 41,089 psi | 86% | 2539 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 82% | 40,451 psi | 85% | 2503 fps | 99% |
| Ramshot Hunter | <<locked>> | 94% | 42,786 psi | 89% | 2579 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,505 psi | 74% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,264 psi | 88% | 2480 fps | 96.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 40,524 psi | 85% | 2582 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 40,553 psi | 85% | 2559 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,046 psi | 86% | 2575 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 82% | 42,641 psi | 89% | 2461 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 86% | 40,712 psi | 85% | 2484 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,743 psi | 89% | 2490 fps | 97.5% |
| Shooters World Precision | <<locked>> | 84% | 43,265 psi | 90% | 2490 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 92% | 43,221 psi | 90% | 2520 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 42,003 psi | 88% | 2536 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 40,930 psi | 86% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,337 psi | 88% | 2441 fps | 96% |
| Somchem S355 | <<locked>> | 86% | 41,423 psi | 87% | 2484 fps | 99.5% |
| Somchem S365 | <<locked>> | 96% | 41,756 psi | 87% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 41,916 psi | 88% | 2434 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 42,757 psi | 89% | 2448 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 42,366 psi | 89% | 2470 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 42,902 psi | 90% | 2533 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 82% | 41,234 psi | 86% | 2444 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 42,250 psi | 88% | 2543 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,147 psi | 84% | 2575 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 43,076 psi | 90% | 2516 fps | 99.8% |
| Winchester 760 | <<locked>> | 90% | 41,336 psi | 86% | 2543 fps | 95.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,793 psi | 69% | 2500 fps | 98.7% |
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 2495 | <<locked>> | 80% | 38,899 psi | 81% | 2395 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 35,549 psi | 74% | 2421 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 36,840 psi | 77% | 2392 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 30,763 psi | 64% | 2326 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 36,593 psi | 76% | 2365 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,131 psi | 82% | 2536 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,027 psi | 75% | 2385 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,754 psi | 81% | 2444 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 31,821 psi | 66% | 2346 fps | 95.7% |
| Alliant Reloder-17 | 39.4 gr | 80% | 30,850 psi | 64% | 2352 fps | 97.2% |
| Alliant Reloder-23 | <<locked>> | 90% | 27,137 psi | 57% | 2251 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 33,243 psi | 69% | 2470 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 35,331 psi | 74% | 2385 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 80% | 36,318 psi | 76% | 2388 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,151 psi | 57% | 2198 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,421 psi | 82% | 2490 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 55% | 1434 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,406 psi | 80% | 2395 fps | 98.4% |
| IMR 4831 | <<locked>> | 84% | 30,008 psi | 63% | 2290 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,682 psi | 83% | 2474 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 38,189 psi | 80% | 2398 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 35,346 psi | 74% | 2343 fps | 95.3% |
| Lovex S070 | <<locked>> | 90% | 40,364 psi | 84% | 2467 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 38,101 psi | 80% | 2434 fps | 98.7% |
| Norma URP | <<locked>> | 84% | 31,618 psi | 66% | 2336 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 37,739 psi | 79% | 2448 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 37,637 psi | 79% | 2474 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,397 psi | 55% | 1467 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 36,898 psi | 77% | 2375 fps | 95% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,924 psi | 69% | 2415 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,069 psi | 69% | 2398 fps | 95.8% |
| ReloadSwiss RS 70 | 44.1 gr | 88% | 35,824 psi | 75% | 2464 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 40,059 psi | 84% | 2415 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 33,272 psi | 70% | 2333 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 35,346 psi | 74% | 2343 fps | 95.3% |
| Shooters World Precision | <<locked>> | 80% | 38,189 psi | 80% | 2398 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 90% | 40,364 psi | 84% | 2467 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,330 psi | 72% | 2382 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,216 psi | 76% | 2290 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 39,697 psi | 83% | 2392 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 34,287 psi | 72% | 2343 fps | 98.3% |
| Somchem S365 | 37.4 gr | 80% | 24,613 psi | 51% | 2178 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 39,523 psi | 83% | 2395 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,147 psi | 84% | 2405 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,576 psi | 68% | 2283 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 30,777 psi | 64% | 2280 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 38,479 psi | 80% | 2395 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,242 psi | 67% | 2333 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 90% | 28,848 psi | 60% | 2320 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,964 psi | 61% | 2215 fps | 96.5% |
| Winchester 760 | <<locked>> | 88% | 38,595 psi | 81% | 2487 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 27,006 psi | 56% | 2316 fps | 95.4% |
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 52 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 160gr | Barnes TSX FB. Alliant Reloder-26 delivers the highest muzzle velocity at 2,651 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,651 fps. Accurate 3100 gives the best case fill at 100 %, and 52 of the 52 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 70, Somchem S365, Alliant Reloder-17 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 160gr | Barnes TSX FB 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.