Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 150gr | Osprey Virtus bullet and 58 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, 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>> | 84% | 41,510 psi | 87% | 2523 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 41,785 psi | 87% | 2562 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 40,437 psi | 84% | 2608 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 82% | 43,308 psi | 90% | 2585 fps | 99% |
| ADI AR 2208 | <<locked>> | 86% | 41,785 psi | 87% | 2543 fps | 98.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,090 psi | 88% | 2671 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 40,988 psi | 86% | 2559 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 84% | 41,669 psi | 87% | 2575 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,886 psi | 85% | 2625 fps | 97.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 40,698 psi | 85% | 2651 fps | 99.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,563 psi | 72% | 2516 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 38,101 psi | 80% | 2654 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,438 psi | 89% | 2589 fps | 98.1% |
| Bofors RP3 | <<locked>> | 86% | 40,509 psi | 85% | 2566 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 86% | 41,930 psi | 88% | 2575 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,424 psi | 89% | 2612 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,279 psi | 88% | 2625 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,766 psi | 73% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,134 psi | 88% | 2552 fps | 99.2% |
| IMR 3031 | <<locked>> | 82% | 43,004 psi | 90% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 41,191 psi | 86% | 2523 fps | 98.3% |
| IMR 4831 | <<locked>> | 96% | 41,858 psi | 87% | 2618 fps | 98% |
| IMR 4895 | <<locked>> | 84% | 42,699 psi | 89% | 2608 fps | 99% |
| Lovex D073.6 | <<locked>> | 82% | 42,018 psi | 88% | 2566 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 40,857 psi | 85% | 2526 fps | 99.5% |
| Lovex S065 | <<locked>> | 92% | 42,931 psi | 90% | 2566 fps | 96.7% |
| Norma 201 | <<locked>> | 82% | 42,322 psi | 88% | 2539 fps | 99.6% |
| Norma 202 | <<locked>> | 82% | 42,656 psi | 89% | 2549 fps | 100% |
| Norma 203B | <<locked>> | 84% | 40,988 psi | 86% | 2566 fps | 98.7% |
| Norma URP | <<locked>> | 94% | 41,031 psi | 86% | 2615 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 84% | 40,466 psi | 85% | 2579 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 96% | 42,844 psi | 90% | 2651 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,404 psi | 74% | 1693 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 40,741 psi | 85% | 2625 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 40,567 psi | 85% | 2657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 43,308 psi | 90% | 2684 fps | 98% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,176 psi | 86% | 2648 fps | 96.7% |
| Rottweil R 902 | <<locked>> | 84% | 42,946 psi | 90% | 2543 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 88% | 40,698 psi | 85% | 2559 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,931 psi | 90% | 2566 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 42,018 psi | 88% | 2566 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 40,857 psi | 85% | 2526 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,293 psi | 88% | 2618 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,989 psi | 88% | 2559 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 41,292 psi | 86% | 2457 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 43,221 psi | 90% | 2572 fps | 99% |
| Somchem S355 | <<locked>> | 88% | 41,539 psi | 87% | 2562 fps | 99.1% |
| Somchem S365 | <<locked>> | 98% | 41,597 psi | 87% | 2667 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 84% | 42,061 psi | 88% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,975 psi | 90% | 2533 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 42,496 psi | 89% | 2549 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 94% | 42,917 psi | 90% | 2608 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 84% | 41,423 psi | 87% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 42,177 psi | 88% | 2615 fps | 97.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,941 psi | 77% | 2589 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,756 psi | 85% | 2546 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 30,821 psi | 64% | 2493 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,191 psi | 86% | 2562 fps | 99.1% |
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% | 36,361 psi | 76% | 2431 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,418 psi | 72% | 2421 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 32,663 psi | 68% | 2444 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 40,698 psi | 85% | 2536 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 34,621 psi | 72% | 2392 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,637 psi | 77% | 2552 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,852 psi | 71% | 2411 fps | 97.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,463 psi | 76% | 2470 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 33,997 psi | 71% | 2467 fps | 95.5% |
| Alliant Reloder-17 | 39.2 gr | 80% | 29,066 psi | 61% | 2365 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,589 psi | 64% | 2411 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 35,476 psi | 74% | 2589 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,624 psi | 83% | 2533 fps | 97.4% |
| Bofors RP3 | <<locked>> | 80% | 33,054 psi | 69% | 2408 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 80% | 34,171 psi | 71% | 2411 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 28,950 psi | 60% | 2313 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,985 psi | 77% | 2516 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,904 psi | 54% | 1473 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,581 psi | 83% | 2503 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 40,205 psi | 84% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,303 psi | 76% | 2425 fps | 97.2% |
| IMR 4831 | <<locked>> | 88% | 32,068 psi | 67% | 2408 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 37,333 psi | 78% | 2500 fps | 98% |
| Lovex D073.6 | <<locked>> | 80% | 39,102 psi | 82% | 2513 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 36,013 psi | 75% | 2428 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 37,695 psi | 79% | 2464 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 39,755 psi | 83% | 2490 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 40,045 psi | 84% | 2503 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,853 psi | 75% | 2461 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 33,663 psi | 70% | 2454 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 35,215 psi | 74% | 2467 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 40,277 psi | 84% | 2598 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,005 psi | 54% | 1506 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,855 psi | 79% | 2562 fps | 97.6% |
| ReloadSwiss RS 60 | 39.2 gr | 80% | 30,995 psi | 65% | 2434 fps | 98.6% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 35,273 psi | 74% | 2520 fps | 95.7% |
| ReloadSwiss RS 70 | 45.8 gr | 92% | 38,435 psi | 80% | 2585 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 37,869 psi | 79% | 2448 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 31,096 psi | 65% | 2356 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 37,695 psi | 79% | 2464 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,102 psi | 82% | 2513 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 36,013 psi | 75% | 2428 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,285 psi | 67% | 2405 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,204 psi | 82% | 2507 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,229 psi | 72% | 2326 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,321 psi | 84% | 2516 fps | 98.5% |
| Somchem S355 | <<locked>> | 80% | 32,213 psi | 67% | 2365 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 26,165 psi | 55% | 2290 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 37,101 psi | 78% | 2434 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,840 psi | 79% | 2441 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,530 psi | 64% | 2306 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 88% | 35,201 psi | 74% | 2454 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 36,318 psi | 76% | 2431 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 34,476 psi | 72% | 2457 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 94% | 30,443 psi | 64% | 2431 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,066 psi | 61% | 2277 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 28,790 psi | 60% | 2425 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,406 psi | 80% | 2507 fps | 98.6% |
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 58 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 150gr | Osprey Virtus. ReloadSwiss RS 62 delivers the highest muzzle velocity at 2,684 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,684 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 58 of the 58 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 150.0 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. ReloadSwiss RS 60, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 150gr | Osprey Virtus 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.