Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 160gr | Prvi Partizan PSP BT bullet and 41 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and ReloadSwiss RS 62.
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% | 42,076 psi | 88% | 2552 fps | 97.4% |
| Accurate 4064 | <<locked>> | 82% | 43,033 psi | 90% | 2503 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 41,771 psi | 87% | 2562 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 82% | 41,669 psi | 87% | 2474 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 41,365 psi | 86% | 2497 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 41,046 psi | 86% | 2569 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 86% | 41,002 psi | 86% | 2595 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,059 psi | 84% | 2579 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 41,742 psi | 87% | 2680 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 41,234 psi | 86% | 2507 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 82% | 41,901 psi | 88% | 2507 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 88% | 41,466 psi | 87% | 2556 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 43,047 psi | 90% | 2559 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,549 psi | 74% | 1624 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,872 psi | 85% | 2457 fps | 95.7% |
| IMR 4831 | <<locked>> | 92% | 42,844 psi | 90% | 2566 fps | 99% |
| Lovex S065 | <<locked>> | 88% | 43,236 psi | 90% | 2510 fps | 97.8% |
| Lovex S070 | <<locked>> | 88% | 40,944 psi | 86% | 2487 fps | 96.2% |
| Norma MRP | <<locked>> | 98% | 41,901 psi | 88% | 2641 fps | 96.1% |
| Norma URP | <<locked>> | 90% | 41,655 psi | 87% | 2559 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 92% | 43,207 psi | 90% | 2598 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,303 psi | 76% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,424 psi | 89% | 2497 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 40,654 psi | 85% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 41,336 psi | 86% | 2582 fps | 98.5% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 41,307 psi | 86% | 2595 fps | 98% |
| Rottweil R 903 | <<locked>> | 84% | 41,379 psi | 86% | 2500 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 43,236 psi | 90% | 2510 fps | 97.8% |
| Shooters World SW4350 | <<locked>> | 88% | 40,944 psi | 86% | 2487 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 42,540 psi | 89% | 2556 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 41,220 psi | 86% | 2385 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,699 psi | 89% | 2457 fps | 96.4% |
| Somchem S355 | <<locked>> | 84% | 41,945 psi | 88% | 2500 fps | 99.7% |
| Somchem S365 | <<locked>> | 94% | 42,511 psi | 89% | 2615 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 42,888 psi | 90% | 2487 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 40,799 psi | 85% | 2507 fps | 98.4% |
| Vihtavuori N550 | <<locked>> | 90% | 42,699 psi | 89% | 2556 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 98% | 41,408 psi | 87% | 2605 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 43,192 psi | 90% | 2530 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 41,742 psi | 87% | 2559 fps | 96.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,955 psi | 75% | 2598 fps | 99.8% |
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 3100 | <<locked>> | 94% | 34,171 psi | 71% | 2395 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 40,263 psi | 84% | 2454 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 29,631 psi | 62% | 2300 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 39,059 psi | 82% | 2425 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,769 psi | 81% | 2448 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,124 psi | 63% | 2310 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,518 psi | 70% | 2428 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,208 psi | 55% | 2231 fps | 95% |
| Alliant Reloder-26 | 47.5 gr | 90% | 31,720 psi | 66% | 2441 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 38,551 psi | 81% | 2454 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 39,247 psi | 82% | 2457 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 38,841 psi | 81% | 2500 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,702 psi | 58% | 2221 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,513 psi | 55% | 1450 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 38,624 psi | 81% | 2411 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 30,864 psi | 64% | 2313 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 33,707 psi | 70% | 2313 fps | 95% |
| Lovex S070 | <<locked>> | 86% | 38,638 psi | 81% | 2441 fps | 95.5% |
| Norma MRP | <<locked>> | 96% | 39,291 psi | 82% | 2585 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 30,037 psi | 63% | 2300 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 86% | 35,679 psi | 75% | 2441 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 56% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,566 psi | 83% | 2441 fps | 96.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,694 psi | 75% | 2490 fps | 100% |
| ReloadSwiss RS 62 | 42.2 gr | 82% | 31,531 psi | 66% | 2365 fps | 95.5% |
| ReloadSwiss RS 70 | 43.9 gr | 84% | 33,678 psi | 70% | 2421 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 36,201 psi | 76% | 2402 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 33,707 psi | 70% | 2313 fps | 95% |
| Shooters World SW4350 | <<locked>> | 86% | 38,638 psi | 81% | 2441 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,072 psi | 77% | 2448 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,566 psi | 81% | 2343 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 39,958 psi | 83% | 2405 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 37,057 psi | 77% | 2405 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 27,064 psi | 57% | 2260 fps | 97.5% |
| Vihtavuori N150 | <<locked>> | 80% | 35,143 psi | 73% | 2343 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 31,459 psi | 66% | 2303 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 30,821 psi | 64% | 2303 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 86% | 28,007 psi | 59% | 2300 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,241 psi | 65% | 2283 fps | 97.7% |
| Winchester 760 | <<locked>> | 86% | 39,131 psi | 82% | 2507 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,121 psi | 55% | 2297 fps | 95.3% |
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 41 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 160gr | Prvi Partizan PSP BT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,680 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,680 fps. Accurate 3100 gives the best case fill at 100 %, and 41 of the 41 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 74–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, 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. Alliant Reloder-26, ReloadSwiss RS 70, ReloadSwiss RS 62 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 160gr | Prvi Partizan PSP BT 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.