Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 168gr | Berger Classic Hybrid Hunter bullet and 47 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 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 3100ᴾ | <<locked>> | 100% | 42,714 psi | 89% | 2497 fps | 97.9% |
| Accurate 4350 | <<locked>> | 90% | 42,351 psi | 88% | 2507 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 82% | 42,250 psi | 88% | 2418 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 42,076 psi | 88% | 2441 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 90% | 41,640 psi | 87% | 2513 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 86% | 41,466 psi | 87% | 2536 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,814 psi | 85% | 2526 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,056 psi | 75% | 2438 fps | 96.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 42,511 psi | 89% | 2631 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 41,727 psi | 87% | 2444 fps | 99.9% |
| Bofors RP7 | <<locked>> | 86% | 42,598 psi | 89% | 2425 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 82% | 42,699 psi | 89% | 2457 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 88% | 42,250 psi | 88% | 2503 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 41,220 psi | 86% | 2457 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 41,568 psi | 87% | 2516 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,708 psi | 75% | 1578 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 42,641 psi | 89% | 2451 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,568 psi | 87% | 2405 fps | 96.4% |
| IMR 4831 | <<locked>> | 90% | 40,843 psi | 85% | 2464 fps | 98.9% |
| Lovex S065 | <<locked>> | 86% | 41,046 psi | 86% | 2405 fps | 97.7% |
| Lovex S070 | <<locked>> | 88% | 41,539 psi | 87% | 2431 fps | 96.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 35,505 psi | 74% | 2362 fps | 96% |
| Norma MRP | <<locked>> | 98% | 42,525 psi | 89% | 2589 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 42,380 psi | 89% | 2503 fps | 99% |
| Ramshot Hunter | <<locked>> | 90% | 41,089 psi | 86% | 2490 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 76% | 1614 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,946 psi | 90% | 2438 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 41,336 psi | 86% | 2536 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 42,032 psi | 88% | 2526 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 41,655 psi | 87% | 2539 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 84% | 41,887 psi | 88% | 2441 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 86% | 42,598 psi | 89% | 2425 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 86% | 41,046 psi | 86% | 2405 fps | 97.7% |
| Shooters World SW4350 | <<locked>> | 88% | 41,539 psi | 87% | 2431 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 43,178 psi | 90% | 2497 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 41,698 psi | 87% | 2326 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,495 psi | 85% | 2352 fps | 96.2% |
| Somchem S355 | <<locked>> | 84% | 42,641 psi | 89% | 2444 fps | 99.9% |
| Somchem S365 | <<locked>> | 94% | 43,178 psi | 90% | 2552 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 42,902 psi | 90% | 2493 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 84% | 40,611 psi | 85% | 2382 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 41,452 psi | 87% | 2451 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 88% | 40,727 psi | 85% | 2454 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 98% | 41,945 psi | 88% | 2546 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 41,133 psi | 86% | 2428 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 42,250 psi | 88% | 2503 fps | 96.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,506 psi | 76% | 2552 fps | 100% |
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>> | 94% | 34,751 psi | 73% | 2346 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 30,211 psi | 63% | 2254 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 39,523 psi | 83% | 2369 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,320 psi | 82% | 2392 fps | 99.7% |
| Alliant Reloder-16 | 37.3 gr | 80% | 30,719 psi | 64% | 2267 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,953 psi | 71% | 2379 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,556 psi | 55% | 2185 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 98% | 33,837 psi | 71% | 2382 fps | 95.5% |
| Alliant Reloder-26 | 46.3 gr | 90% | 32,300 psi | 67% | 2398 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 39,247 psi | 82% | 2402 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 39,885 psi | 83% | 2372 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 39,914 psi | 83% | 2405 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 84% | 36,941 psi | 77% | 2398 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,108 psi | 59% | 2172 fps | 96.8% |
| Hodgdon Superformance | <<locked>> | 86% | 38,914 psi | 81% | 2461 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,687 psi | 56% | 1407 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 39,943 psi | 83% | 2398 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 38,943 psi | 81% | 2352 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 29,341 psi | 61% | 2215 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 34,171 psi | 71% | 2264 fps | 95.7% |
| Lovex S070 | <<locked>> | 84% | 36,637 psi | 77% | 2336 fps | 95.3% |
| Lovex S071 | <<locked>> | 98% | 33,286 psi | 70% | 2316 fps | 95.2% |
| Norma MRP | <<locked>> | 94% | 37,246 psi | 78% | 2477 fps | 95% |
| Norma URP | <<locked>> | 80% | 30,516 psi | 64% | 2251 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 84% | 33,997 psi | 71% | 2339 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,948 psi | 56% | 1440 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,248 psi | 84% | 2388 fps | 96.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,143 psi | 76% | 2434 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 29,936 psi | 63% | 2267 fps | 95.3% |
| ReloadSwiss RS 70 | 41.8 gr | 82% | 32,111 psi | 67% | 2323 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 36,753 psi | 77% | 2346 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 39,885 psi | 83% | 2372 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,171 psi | 71% | 2264 fps | 95.7% |
| Shooters World SW4350 | <<locked>> | 84% | 36,637 psi | 77% | 2336 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,739 psi | 79% | 2395 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,218 psi | 82% | 2287 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,058 psi | 80% | 2310 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 37,565 psi | 78% | 2352 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 27,325 psi | 57% | 2211 fps | 98% |
| Somchem S385 | <<locked>> | 94% | 40,118 psi | 84% | 2441 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 35,679 psi | 75% | 2290 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 31,966 psi | 67% | 2257 fps | 96.3% |
| Vihtavuori N550 | <<locked>> | 80% | 31,386 psi | 66% | 2257 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 84% | 26,760 psi | 56% | 2205 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,647 psi | 66% | 2234 fps | 98.3% |
| Winchester 760 | <<locked>> | 84% | 37,188 psi | 78% | 2402 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 88% | 24,874 psi | 52% | 2198 fps | 95% |
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 47 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 168gr | Berger Classic Hybrid Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 2,631 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,631 fps. Accurate 3100 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 74–90 %, leaving at least 10 % headroom. The 168.0 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-25 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, Alliant Reloder-16 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 168gr | Berger Classic Hybrid Hunter 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.