Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 160gr | Speer Magnum Tip Soft Point bullet and 45 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 3100ᴾ | <<locked>> | 100% | 43,207 psi | 90% | 2579 fps | 97.8% |
| Accurate 4350 | <<locked>> | 90% | 42,873 psi | 90% | 2592 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 82% | 42,496 psi | 89% | 2500 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 42,264 psi | 88% | 2520 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 90% | 41,974 psi | 88% | 2598 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 86% | 41,945 psi | 88% | 2621 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,350 psi | 86% | 2615 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,463 psi | 76% | 2520 fps | 96.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 42,946 psi | 90% | 2713 fps | 99% |
| Bofors RP3 | <<locked>> | 82% | 42,076 psi | 88% | 2530 fps | 99.9% |
| Bofors RP7 | <<locked>> | 86% | 42,830 psi | 89% | 2503 fps | 96% |
| Hodgdon H380 | <<locked>> | 82% | 42,960 psi | 90% | 2536 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 88% | 42,728 psi | 89% | 2589 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 41,481 psi | 87% | 2539 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 42,105 psi | 88% | 2602 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,694 psi | 75% | 1637 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 43,149 psi | 90% | 2533 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,829 psi | 87% | 2487 fps | 96.2% |
| IMR 4831 | <<locked>> | 90% | 41,060 psi | 86% | 2539 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 41,568 psi | 87% | 2487 fps | 97.6% |
| Lovex S070 | <<locked>> | 88% | 41,872 psi | 87% | 2513 fps | 96.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 35,998 psi | 75% | 2441 fps | 95.8% |
| Norma MRP | <<locked>> | 98% | 43,134 psi | 90% | 2674 fps | 96.7% |
| Norma URP | <<locked>> | 90% | 42,656 psi | 89% | 2585 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 90% | 41,626 psi | 87% | 2575 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,419 psi | 76% | 1680 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 41,916 psi | 88% | 2625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 42,612 psi | 89% | 2612 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,293 psi | 88% | 2628 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 84% | 42,279 psi | 88% | 2526 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 86% | 42,830 psi | 89% | 2503 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 86% | 41,568 psi | 87% | 2487 fps | 97.6% |
| Shooters World SW4350 | <<locked>> | 88% | 41,872 psi | 87% | 2513 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 40,596 psi | 85% | 2526 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 42,090 psi | 88% | 2408 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,886 psi | 85% | 2434 fps | 96.1% |
| Somchem S355 | <<locked>> | 84% | 43,047 psi | 90% | 2530 fps | 99.8% |
| Somchem S365 | <<locked>> | 92% | 40,988 psi | 86% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 40,973 psi | 86% | 2461 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 41,800 psi | 87% | 2533 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 88% | 41,234 psi | 86% | 2539 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 98% | 42,743 psi | 89% | 2635 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 41,553 psi | 87% | 2510 fps | 99.8% |
| Winchester 760 | <<locked>> | 88% | 42,728 psi | 89% | 2589 fps | 96.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,970 psi | 77% | 2635 fps | 99.9% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 35,244 psi | 74% | 2428 fps | 95.6% |
| Accurate 4350 | <<locked>> | 80% | 30,458 psi | 64% | 2326 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 39,871 psi | 83% | 2451 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,639 psi | 83% | 2474 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,792 psi | 64% | 2336 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,418 psi | 72% | 2461 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,890 psi | 56% | 2260 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,301 psi | 72% | 2464 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,619 psi | 68% | 2477 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 39,436 psi | 82% | 2480 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 40,234 psi | 84% | 2454 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 40,306 psi | 84% | 2487 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 84% | 37,347 psi | 78% | 2477 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,384 psi | 59% | 2247 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 86% | 39,291 psi | 82% | 2543 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,556 psi | 55% | 1460 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 40,538 psi | 85% | 2484 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,305 psi | 82% | 2434 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 29,602 psi | 62% | 2287 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 34,461 psi | 72% | 2339 fps | 95.5% |
| Lovex S070 | <<locked>> | 84% | 36,956 psi | 77% | 2411 fps | 95.1% |
| Lovex S071 | <<locked>> | 98% | 33,866 psi | 71% | 2395 fps | 95% |
| Norma MRP | <<locked>> | 96% | 40,234 psi | 84% | 2615 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 30,951 psi | 65% | 2333 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 86% | 36,535 psi | 76% | 2470 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,050 psi | 57% | 1499 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,651 psi | 77% | 2520 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,197 psi | 63% | 2339 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 32,358 psi | 68% | 2398 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 37,304 psi | 78% | 2431 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 84% | 40,234 psi | 84% | 2454 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,461 psi | 72% | 2339 fps | 95.5% |
| Shooters World SW4350 | <<locked>> | 84% | 36,956 psi | 77% | 2411 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,087 psi | 80% | 2477 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,436 psi | 82% | 2362 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,305 psi | 80% | 2382 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 37,898 psi | 79% | 2431 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 27,702 psi | 58% | 2287 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 80% | 36,216 psi | 76% | 2372 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 32,169 psi | 67% | 2329 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 80% | 31,749 psi | 66% | 2333 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 86% | 28,906 psi | 60% | 2333 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,952 psi | 67% | 2310 fps | 98.1% |
| Winchester 760 | <<locked>> | 84% | 37,579 psi | 79% | 2484 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,818 psi | 56% | 2333 fps | 96.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 45 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 160gr | Speer Magnum Tip Soft Point. Alliant Reloder-26 delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,637 fps to 2,713 fps. Accurate 3100 gives the best case fill at 100 %, and 45 of the 45 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:12.5 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.