Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 170gr | CutEdge MTH bullet and 57 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>> | 82% | 42,467 psi | 89% | 2365 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 39,001 psi | 81% | 2408 fps | 96.8% |
| Accurate 4064 | <<locked>> | 84% | 42,859 psi | 90% | 2411 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 41,524 psi | 87% | 2467 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 84% | 42,250 psi | 88% | 2392 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 42,467 psi | 89% | 2520 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 41,800 psi | 87% | 2411 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 82% | 42,119 psi | 88% | 2425 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 92% | 41,626 psi | 87% | 2487 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,437 psi | 87% | 2510 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,710 psi | 79% | 2441 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,930 psi | 88% | 2589 fps | 98.8% |
| Bofors RP3 | <<locked>> | 84% | 41,307 psi | 86% | 2415 fps | 99.9% |
| Bofors RP7 | <<locked>> | 88% | 42,395 psi | 89% | 2392 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 84% | 42,293 psi | 88% | 2425 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 90% | 41,887 psi | 88% | 2470 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 43,265 psi | 90% | 2467 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 43,120 psi | 90% | 2470 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,259 psi | 74% | 1542 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 41,626 psi | 87% | 2372 fps | 99.3% |
| IMR 4350 | <<locked>> | 92% | 42,467 psi | 89% | 2418 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 41,437 psi | 87% | 2375 fps | 96.1% |
| IMR 4831 | <<locked>> | 94% | 42,931 psi | 90% | 2474 fps | 99.1% |
| IMR 4895 | <<locked>> | 82% | 43,163 psi | 90% | 2451 fps | 99.7% |
| Lovex S062 | <<locked>> | 82% | 41,452 psi | 87% | 2375 fps | 99.9% |
| Lovex S065 | <<locked>> | 90% | 43,279 psi | 90% | 2418 fps | 98% |
| Lovex S070 | <<locked>> | 90% | 41,234 psi | 86% | 2402 fps | 96.5% |
| Norma 203B | <<locked>> | 82% | 41,452 psi | 87% | 2411 fps | 99.5% |
| Norma MRPᴾ | <<locked>> | 100% | 42,206 psi | 88% | 2552 fps | 96.4% |
| Norma URP | <<locked>> | 92% | 41,872 psi | 87% | 2467 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 82% | 41,031 psi | 86% | 2428 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 92% | 40,843 psi | 85% | 2457 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,694 psi | 75% | 1581 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,772 psi | 89% | 2408 fps | 97.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,191 psi | 86% | 2507 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 41,292 psi | 86% | 2490 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,727 psi | 87% | 2510 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 86% | 41,524 psi | 87% | 2415 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 88% | 42,395 psi | 89% | 2392 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 43,279 psi | 90% | 2418 fps | 98% |
| Shooters World Precision | <<locked>> | 82% | 41,452 psi | 87% | 2375 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 90% | 41,234 psi | 86% | 2402 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 42,946 psi | 90% | 2467 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 41,640 psi | 87% | 2300 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 42,989 psi | 90% | 2372 fps | 96.6% |
| Somchem S355 | <<locked>> | 86% | 42,395 psi | 89% | 2418 fps | 99.8% |
| Somchem S365 | <<locked>> | 96% | 42,482 psi | 89% | 2520 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 42,467 psi | 89% | 2461 fps | 96% |
| Vihtavuori N135 | <<locked>> | 82% | 42,975 psi | 90% | 2362 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 43,221 psi | 90% | 2402 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 40,959 psi | 86% | 2418 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 82% | 41,858 psi | 87% | 2369 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 43,192 psi | 90% | 2474 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,046 psi | 86% | 2507 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,220 psi | 86% | 2405 fps | 99.8% |
| Winchester 760 | <<locked>> | 90% | 41,887 psi | 88% | 2470 fps | 96.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,605 psi | 70% | 2451 fps | 99.5% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 39,697 psi | 83% | 2323 fps | 100% |
| Accurate 3100 | <<locked>> | 96% | 33,953 psi | 71% | 2310 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 37,565 psi | 78% | 2323 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 29,283 psi | 61% | 2215 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 37,173 psi | 78% | 2297 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,827 psi | 83% | 2470 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,695 psi | 77% | 2316 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,479 psi | 82% | 2375 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 30,298 psi | 63% | 2231 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,604 psi | 66% | 2297 fps | 98% |
| Alliant Reloder-23 | <<locked>> | 88% | 26,063 psi | 54% | 2149 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 92% | 31,647 psi | 66% | 2356 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 36,129 psi | 75% | 2320 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 39,784 psi | 83% | 2346 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 37,130 psi | 78% | 2326 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 88% | 39,262 psi | 82% | 2418 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 25,904 psi | 54% | 2093 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,089 psi | 84% | 2418 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,368 psi | 55% | 1381 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,030 psi | 82% | 2326 fps | 98.9% |
| IMR 4350 | <<locked>> | 90% | 39,900 psi | 83% | 2369 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 39,218 psi | 82% | 2333 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 28,805 psi | 60% | 2185 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 40,451 psi | 85% | 2402 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 38,827 psi | 81% | 2329 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 33,866 psi | 71% | 2234 fps | 95.4% |
| Lovex S070 | <<locked>> | 86% | 36,332 psi | 76% | 2306 fps | 95% |
| Norma 203B | <<locked>> | 80% | 38,870 psi | 81% | 2365 fps | 99.2% |
| Norma MRP | <<locked>> | 98% | 39,291 psi | 82% | 2493 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 30,124 psi | 63% | 2221 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 38,450 psi | 80% | 2382 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 35,810 psi | 75% | 2356 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,571 psi | 56% | 1411 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 37,710 psi | 79% | 2313 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,707 psi | 70% | 2356 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 31,314 psi | 65% | 2283 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 34,084 psi | 71% | 2346 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 33,968 psi | 71% | 2270 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 39,784 psi | 83% | 2346 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 82% | 33,866 psi | 71% | 2234 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 38,827 psi | 81% | 2329 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 36,332 psi | 76% | 2306 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,128 psi | 73% | 2320 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,709 psi | 77% | 2218 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 37,681 psi | 79% | 2277 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 34,896 psi | 73% | 2277 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 25,150 psi | 53% | 2129 fps | 96.8% |
| Somchem S385 | <<locked>> | 96% | 39,494 psi | 83% | 2405 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 40,147 psi | 84% | 2320 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,170 psi | 69% | 2218 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 29,501 psi | 62% | 2175 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 39,276 psi | 82% | 2326 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 30,835 psi | 64% | 2224 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 27,499 psi | 57% | 2211 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,486 psi | 62% | 2159 fps | 97.3% |
| Winchester 760 | <<locked>> | 86% | 36,796 psi | 77% | 2369 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 92% | 25,846 psi | 54% | 2211 fps | 95.5% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 81 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 170gr | CutEdge MTH. Alliant Reloder-26 delivers the highest muzzle velocity at 2,589 fps; across all powders the maximum-charge window runs from 1,542 fps to 2,589 fps. Accurate 3100 gives the best case fill at 100 %, and 81 of the 81 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 170.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2213 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. As outliers, Accurate High Country, ADI AR 2209, ADI AR 2213 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.