Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 160gr | CutEdge MTH bullet and 52 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, ReloadSwiss RS 70 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% | 41,263 psi | 86% | 2431 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 41,597 psi | 87% | 2474 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 43,279 psi | 90% | 2582 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 84% | 41,249 psi | 86% | 2454 fps | 98.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 41,452 psi | 87% | 2582 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 43,294 psi | 90% | 2520 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 82% | 40,988 psi | 86% | 2484 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,859 psi | 90% | 2589 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 43,120 psi | 90% | 2621 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,695 psi | 77% | 2497 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,669 psi | 85% | 2641 fps | 98% |
| Bofors RP3 | <<locked>> | 86% | 42,989 psi | 90% | 2526 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 84% | 41,292 psi | 86% | 2484 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 42,250 psi | 88% | 2533 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 41,742 psi | 87% | 2533 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,215 psi | 74% | 1601 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 40,654 psi | 85% | 2434 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 43,178 psi | 90% | 2484 fps | 96% |
| IMR 4831 | <<locked>> | 94% | 41,568 psi | 87% | 2533 fps | 98.5% |
| IMR 4895 | <<locked>> | 82% | 42,018 psi | 88% | 2513 fps | 99.4% |
| Lovex S062 | <<locked>> | 84% | 43,062 psi | 90% | 2487 fps | 99.9% |
| Lovex S065 | <<locked>> | 90% | 42,308 psi | 88% | 2480 fps | 97.3% |
| Lovex S070 | <<locked>> | 92% | 42,757 psi | 89% | 2507 fps | 96.3% |
| Norma 203B | <<locked>> | 84% | 42,960 psi | 90% | 2523 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 40,611 psi | 85% | 2526 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 84% | 42,859 psi | 90% | 2543 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 94% | 42,380 psi | 89% | 2566 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,592 psi | 74% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,800 psi | 87% | 2467 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 43,047 psi | 90% | 2582 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 42,975 psi | 90% | 2625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 43,076 psi | 90% | 2602 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,265 psi | 90% | 2618 fps | 98.1% |
| Rottweil R 902 | <<locked>> | 82% | 42,119 psi | 88% | 2448 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 88% | 42,888 psi | 90% | 2520 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,308 psi | 88% | 2480 fps | 97.3% |
| Shooters World Precision | <<locked>> | 84% | 43,062 psi | 90% | 2487 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 92% | 42,757 psi | 89% | 2507 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 41,785 psi | 87% | 2530 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 40,669 psi | 85% | 2365 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 41,858 psi | 87% | 2428 fps | 95.8% |
| Somchem S355 | <<locked>> | 86% | 41,205 psi | 86% | 2477 fps | 99.5% |
| Somchem S365 | <<locked>> | 96% | 41,321 psi | 86% | 2582 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 41,626 psi | 87% | 2428 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 42,511 psi | 89% | 2441 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 41,887 psi | 88% | 2461 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 42,424 psi | 89% | 2523 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 82% | 40,712 psi | 85% | 2434 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 41,814 psi | 87% | 2530 fps | 98.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,682 psi | 83% | 2566 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 42,757 psi | 89% | 2507 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,561 psi | 68% | 2490 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% | 38,595 psi | 81% | 2388 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,535 psi | 76% | 2385 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 30,298 psi | 63% | 2313 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 36,376 psi | 76% | 2359 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,667 psi | 81% | 2523 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,752 psi | 75% | 2379 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,493 psi | 80% | 2434 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 31,430 psi | 66% | 2333 fps | 95.4% |
| Alliant Reloder-17 | 39.1 gr | 80% | 30,690 psi | 64% | 2346 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 92% | 28,500 psi | 60% | 2290 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 32,924 psi | 69% | 2461 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 35,085 psi | 73% | 2379 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 80% | 36,100 psi | 75% | 2382 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 26,760 psi | 56% | 2185 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,899 psi | 81% | 2477 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 55% | 1430 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,174 psi | 80% | 2388 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 40,625 psi | 85% | 2434 fps | 95.2% |
| IMR 4831 | <<locked>> | 86% | 31,792 psi | 66% | 2329 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 39,407 psi | 82% | 2464 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 37,666 psi | 79% | 2385 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 35,143 psi | 73% | 2336 fps | 95.2% |
| Lovex S070 | <<locked>> | 90% | 40,176 psi | 84% | 2457 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 37,855 psi | 79% | 2425 fps | 98.7% |
| Norma URP | <<locked>> | 84% | 31,198 psi | 65% | 2323 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 37,246 psi | 78% | 2438 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 37,246 psi | 78% | 2464 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,411 psi | 55% | 1463 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,059 psi | 82% | 2415 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,263 psi | 84% | 2530 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,750 psi | 68% | 2408 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 32,648 psi | 68% | 2388 fps | 95.6% |
| ReloadSwiss RS 70 | 43.7 gr | 88% | 35,491 psi | 74% | 2451 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 39,537 psi | 83% | 2402 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 33,011 psi | 69% | 2326 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 84% | 35,143 psi | 73% | 2336 fps | 95.2% |
| Shooters World Precision | <<locked>> | 80% | 37,666 psi | 79% | 2385 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 40,176 psi | 84% | 2457 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,113 psi | 71% | 2375 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,708 psi | 75% | 2280 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 39,233 psi | 82% | 2382 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 34,026 psi | 71% | 2333 fps | 98.2% |
| Somchem S365 | 37.1 gr | 80% | 24,439 psi | 51% | 2172 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 38,943 psi | 81% | 2382 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,885 psi | 83% | 2398 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,329 psi | 68% | 2277 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 32,619 psi | 68% | 2323 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 38,276 psi | 80% | 2388 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,024 psi | 67% | 2326 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 90% | 28,471 psi | 59% | 2306 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,645 psi | 60% | 2205 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 94% | 26,774 psi | 56% | 2303 fps | 95.1% |
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 52 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 160gr | CutEdge MTH. Alliant Reloder-26 delivers the highest muzzle velocity at 2,641 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,641 fps. Alliant Reloder-23 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 68–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, 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. Somchem S365, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 160gr | CutEdge MTH 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.