Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 150gr | Nosler Ballistic Tip Hunting bullet and 47 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% | 42,641 psi | 89% | 2539 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 42,757 psi | 89% | 2582 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 41,350 psi | 86% | 2631 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 84% | 41,814 psi | 87% | 2552 fps | 98.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 42,003 psi | 88% | 2684 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 41,336 psi | 86% | 2572 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 82% | 41,684 psi | 87% | 2585 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 41,017 psi | 86% | 2641 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,133 psi | 86% | 2671 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,347 psi | 78% | 2592 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,698 psi | 87% | 2746 fps | 97.8% |
| Bofors RP3 | <<locked>> | 84% | 41,307 psi | 86% | 2585 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 84% | 42,105 psi | 88% | 2585 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 42,844 psi | 90% | 2631 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 42,438 psi | 89% | 2631 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,317 psi | 74% | 1673 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 41,394 psi | 86% | 2536 fps | 98.6% |
| IMR 4831 | <<locked>> | 94% | 42,496 psi | 89% | 2635 fps | 98.3% |
| IMR 4895 | <<locked>> | 82% | 42,699 psi | 89% | 2615 fps | 99.2% |
| Lovex S062 | <<locked>> | 82% | 41,321 psi | 86% | 2543 fps | 99.6% |
| Lovex S065 | <<locked>> | 90% | 43,236 psi | 90% | 2582 fps | 97.1% |
| Norma 203B | <<locked>> | 82% | 41,060 psi | 86% | 2575 fps | 98.9% |
| Norma URP | <<locked>> | 92% | 41,336 psi | 86% | 2628 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 82% | 40,567 psi | 85% | 2589 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 94% | 43,294 psi | 90% | 2671 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,708 psi | 75% | 1713 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,714 psi | 89% | 2572 fps | 96.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 40,770 psi | 85% | 2674 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 41,191 psi | 86% | 2654 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,234 psi | 86% | 2664 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 82% | 43,120 psi | 90% | 2552 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 86% | 41,191 psi | 86% | 2575 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 43,236 psi | 90% | 2582 fps | 97.1% |
| Shooters World Precision | <<locked>> | 82% | 41,321 psi | 86% | 2543 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 42,627 psi | 89% | 2635 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 41,423 psi | 87% | 2467 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 42,163 psi | 88% | 2582 fps | 99.4% |
| Somchem S365 | <<locked>> | 96% | 42,119 psi | 88% | 2687 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 42,627 psi | 89% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 43,207 psi | 90% | 2543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 42,888 psi | 90% | 2566 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 90% | 40,553 psi | 85% | 2575 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 82% | 41,626 psi | 87% | 2536 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 42,728 psi | 89% | 2635 fps | 98% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,741 psi | 85% | 2671 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 40,828 psi | 85% | 2559 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,475 psi | 70% | 2592 fps | 98.4% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 39,842 psi | 83% | 2493 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,666 psi | 79% | 2487 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 31,372 psi | 66% | 2415 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 36,927 psi | 77% | 2454 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,334 psi | 82% | 2625 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,434 psi | 76% | 2474 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,305 psi | 82% | 2539 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,111 psi | 67% | 2428 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,517 psi | 66% | 2444 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,370 psi | 61% | 2385 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,289 psi | 76% | 2621 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 36,071 psi | 75% | 2480 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 80% | 36,898 psi | 77% | 2480 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,572 psi | 58% | 2280 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,711 psi | 83% | 2579 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 55% | 1493 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,740 psi | 81% | 2484 fps | 98% |
| IMR 4831 | <<locked>> | 86% | 32,663 psi | 68% | 2428 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 40,263 psi | 84% | 2569 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,696 psi | 81% | 2490 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 38,290 psi | 80% | 2484 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 38,696 psi | 81% | 2526 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 32,111 psi | 67% | 2421 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 38,000 psi | 79% | 2536 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 38,101 psi | 80% | 2562 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,687 psi | 56% | 1532 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,798 psi | 83% | 2513 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,547 psi | 70% | 2510 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,504 psi | 70% | 2487 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 36,260 psi | 76% | 2549 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 40,640 psi | 85% | 2507 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 33,823 psi | 71% | 2425 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,290 psi | 80% | 2484 fps | 95.7% |
| Shooters World Precision | <<locked>> | 80% | 38,696 psi | 81% | 2490 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,766 psi | 73% | 2470 fps | 97.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,405 psi | 76% | 2375 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 34,795 psi | 73% | 2431 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 25,324 psi | 53% | 2267 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 39,798 psi | 83% | 2487 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,437 psi | 84% | 2493 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,967 psi | 69% | 2369 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 33,460 psi | 70% | 2421 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 38,986 psi | 81% | 2487 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,880 psi | 69% | 2425 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 31,328 psi | 65% | 2461 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,356 psi | 61% | 2293 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,515 psi | 62% | 2464 fps | 96.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 47 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 150gr | Nosler Ballistic Tip Hunting. Alliant Reloder-26 delivers the highest muzzle velocity at 2,746 fps; across all powders the maximum-charge window runs from 1,673 fps to 2,746 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.0 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.