Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 157gr | CutEdge MTAC bullet and 54 powders. The key underlying parameters are shown in the table above.
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>> | 84% | 43,033 psi | 90% | 2484 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 40,625 psi | 85% | 2484 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 42,482 psi | 89% | 2589 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 86% | 43,294 psi | 90% | 2513 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 40,843 psi | 85% | 2592 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,612 psi | 89% | 2533 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,989 psi | 90% | 2546 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,250 psi | 88% | 2598 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,163 psi | 88% | 2625 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,839 psi | 75% | 2497 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,653 psi | 83% | 2641 fps | 97.5% |
| Bofors RP3 | <<locked>> | 86% | 42,293 psi | 88% | 2539 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 40,393 psi | 84% | 2490 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 92% | 42,569 psi | 89% | 2585 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 41,249 psi | 86% | 2536 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 41,075 psi | 86% | 2543 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,143 psi | 73% | 1614 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 42,714 psi | 89% | 2497 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 40,828 psi | 85% | 2543 fps | 98.2% |
| IMR 4895 | <<locked>> | 82% | 41,379 psi | 86% | 2526 fps | 99.1% |
| Lovex S062 | <<locked>> | 84% | 42,119 psi | 88% | 2490 fps | 99.8% |
| Lovex S065 | <<locked>> | 90% | 41,684 psi | 87% | 2490 fps | 96.9% |
| Lovex S070 | <<locked>> | 92% | 42,090 psi | 88% | 2516 fps | 95.9% |
| Norma 203B | <<locked>> | 84% | 42,308 psi | 88% | 2533 fps | 99.2% |
| Norma URP | <<locked>> | 94% | 42,569 psi | 89% | 2585 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 84% | 41,872 psi | 87% | 2546 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 94% | 41,756 psi | 87% | 2575 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,505 psi | 74% | 1654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,205 psi | 86% | 2477 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,293 psi | 88% | 2592 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 42,293 psi | 88% | 2635 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 42,018 psi | 88% | 2605 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,612 psi | 89% | 2625 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 41,524 psi | 87% | 2461 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 88% | 42,163 psi | 88% | 2530 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,684 psi | 87% | 2490 fps | 96.9% |
| Shooters World Precision | <<locked>> | 84% | 42,119 psi | 88% | 2490 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 92% | 42,090 psi | 88% | 2516 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 40,872 psi | 85% | 2536 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 43,265 psi | 90% | 2526 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,786 psi | 89% | 2425 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 43,192 psi | 90% | 2536 fps | 99.6% |
| Somchem S365 | <<locked>> | 96% | 40,277 psi | 84% | 2585 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 82% | 40,973 psi | 86% | 2441 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,887 psi | 88% | 2454 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 41,220 psi | 86% | 2470 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 92% | 41,756 psi | 87% | 2533 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 84% | 42,699 psi | 89% | 2490 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 41,104 psi | 86% | 2539 fps | 97.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,609 psi | 81% | 2566 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 42,163 psi | 88% | 2520 fps | 99.6% |
| Winchester 760 | <<locked>> | 92% | 42,859 psi | 90% | 2589 fps | 96% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,010 psi | 67% | 2490 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,540 psi | 89% | 2530 fps | 99.6% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 37,652 psi | 79% | 2395 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,679 psi | 75% | 2388 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 31,792 psi | 66% | 2372 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 35,621 psi | 74% | 2362 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,087 psi | 80% | 2533 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,954 psi | 73% | 2382 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,637 psi | 79% | 2441 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 32,982 psi | 69% | 2392 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 30,226 psi | 63% | 2352 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 28,065 psi | 59% | 2293 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 34,447 psi | 72% | 2516 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 34,258 psi | 72% | 2382 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 80% | 35,273 psi | 74% | 2385 fps | 96% |
| Hodgdon H414 | <<locked>> | 90% | 39,958 psi | 83% | 2533 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,065 psi | 59% | 2241 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,276 psi | 80% | 2487 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,918 psi | 54% | 1437 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,347 psi | 78% | 2395 fps | 97.9% |
| IMR 4831 | <<locked>> | 86% | 31,212 psi | 65% | 2339 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 38,551 psi | 81% | 2470 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 37,115 psi | 78% | 2398 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 36,825 psi | 77% | 2392 fps | 95.5% |
| Lovex S070 | <<locked>> | 90% | 39,320 psi | 82% | 2464 fps | 95% |
| Norma 203B | <<locked>> | 80% | 37,028 psi | 77% | 2431 fps | 98.3% |
| Norma URP | <<locked>> | 86% | 32,721 psi | 68% | 2382 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 36,680 psi | 77% | 2448 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 92% | 38,972 psi | 81% | 2520 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,339 psi | 55% | 1476 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 38,479 psi | 80% | 2425 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,566 psi | 83% | 2543 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,242 psi | 67% | 2415 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 34,185 psi | 71% | 2444 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 34,693 psi | 72% | 2451 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 38,972 psi | 81% | 2415 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 32,227 psi | 67% | 2329 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 36,825 psi | 77% | 2392 fps | 95.5% |
| Shooters World Precision | <<locked>> | 80% | 37,115 psi | 78% | 2398 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 39,320 psi | 82% | 2464 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,591 psi | 70% | 2382 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,683 psi | 85% | 2480 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,215 psi | 74% | 2293 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 33,286 psi | 70% | 2339 fps | 97.8% |
| Somchem S365 | <<locked>> | 82% | 25,614 psi | 54% | 2228 fps | 96% |
| Vihtavuori N135 | <<locked>> | 80% | 38,319 psi | 80% | 2398 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,015 psi | 82% | 2405 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,575 psi | 66% | 2280 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 32,097 psi | 67% | 2329 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 37,434 psi | 78% | 2395 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 33,576 psi | 70% | 2385 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 92% | 29,762 psi | 62% | 2362 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,224 psi | 59% | 2211 fps | 95.7% |
| Winchester 760 | <<locked>> | 90% | 39,958 psi | 83% | 2533 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 96% | 27,978 psi | 58% | 2359 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,972 psi | 84% | 2484 fps | 99.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 54 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 157gr | CutEdge MTAC. Alliant Reloder-26 delivers the highest muzzle velocity at 2,641 fps; across all powders the maximum-charge window runs from 1,614 fps to 2,641 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 54 of the 54 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 157.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.