Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 160gr | Peregrine VRG-3 bullet and 47 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Somchem S365 and ReloadSwiss RS 70.
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% | 40,205 psi | 84% | 2526 fps | 96.9% |
| Accurate 4064 | <<locked>> | 82% | 41,249 psi | 86% | 2484 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 42,917 psi | 90% | 2592 fps | 99% |
| ADI AR 2208 | <<locked>> | 84% | 43,091 psi | 90% | 2507 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,627 psi | 89% | 2526 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 82% | 43,004 psi | 90% | 2539 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,366 psi | 89% | 2602 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,583 psi | 89% | 2631 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,870 psi | 81% | 2562 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,294 psi | 90% | 2717 fps | 99% |
| Bofors RP3 | <<locked>> | 84% | 42,598 psi | 89% | 2536 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 82% | 40,596 psi | 85% | 2490 fps | 98% |
| Hodgdon H414 | <<locked>> | 90% | 43,047 psi | 90% | 2592 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 41,800 psi | 87% | 2543 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,447 psi | 74% | 1624 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,395 psi | 89% | 2487 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,511 psi | 89% | 2493 fps | 96.2% |
| IMR 4831 | <<locked>> | 92% | 41,205 psi | 86% | 2543 fps | 98.7% |
| Lovex S062 | <<locked>> | 82% | 42,221 psi | 88% | 2487 fps | 99.9% |
| Lovex S065 | <<locked>> | 88% | 41,698 psi | 87% | 2487 fps | 97.5% |
| Lovex S070 | <<locked>> | 90% | 42,337 psi | 88% | 2520 fps | 96.6% |
| Norma 203B | <<locked>> | 82% | 42,337 psi | 88% | 2530 fps | 99.5% |
| Norma URP | <<locked>> | 92% | 42,931 psi | 90% | 2585 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 82% | 42,047 psi | 88% | 2546 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 92% | 42,003 psi | 88% | 2579 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,839 psi | 75% | 1663 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,959 psi | 86% | 2474 fps | 96.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 42,221 psi | 88% | 2628 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,859 psi | 90% | 2615 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,859 psi | 90% | 2635 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 86% | 42,482 psi | 89% | 2530 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,698 psi | 87% | 2487 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 42,221 psi | 88% | 2487 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 90% | 42,337 psi | 88% | 2520 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 41,046 psi | 86% | 2533 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,641 psi | 89% | 2415 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,423 psi | 87% | 2441 fps | 96.1% |
| Somchem S355 | <<locked>> | 84% | 40,596 psi | 85% | 2484 fps | 99.5% |
| Somchem S365 | <<locked>> | 94% | 40,901 psi | 85% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 41,350 psi | 86% | 2467 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 42,061 psi | 88% | 2533 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 82% | 42,844 psi | 90% | 2484 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 41,408 psi | 87% | 2539 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,540 psi | 89% | 2631 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 42,119 psi | 88% | 2520 fps | 99.8% |
| Winchester 760 | <<locked>> | 90% | 43,047 psi | 90% | 2592 fps | 96.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,461 psi | 72% | 2569 fps | 99.5% |
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>> | 96% | 35,056 psi | 73% | 2425 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 38,522 psi | 80% | 2434 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,110 psi | 63% | 2323 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 37,985 psi | 79% | 2411 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,536 psi | 78% | 2431 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,205 psi | 84% | 2487 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,067 psi | 65% | 2343 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,387 psi | 68% | 2408 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 26,585 psi | 56% | 2251 fps | 95.2% |
| Alliant Reloder-26 | 48.4 gr | 92% | 32,576 psi | 68% | 2474 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 37,101 psi | 78% | 2434 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 37,927 psi | 79% | 2438 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 86% | 37,652 psi | 79% | 2484 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,571 psi | 56% | 2198 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,339 psi | 55% | 1450 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,885 psi | 83% | 2441 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 39,856 psi | 83% | 2444 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 29,573 psi | 62% | 2290 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 39,711 psi | 83% | 2444 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 34,679 psi | 72% | 2343 fps | 95.4% |
| Lovex S070 | <<locked>> | 86% | 37,101 psi | 78% | 2415 fps | 95% |
| Norma 203B | <<locked>> | 80% | 39,595 psi | 83% | 2477 fps | 99.2% |
| Norma URP | <<locked>> | 82% | 30,893 psi | 65% | 2329 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 39,334 psi | 82% | 2493 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 36,869 psi | 77% | 2474 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,513 psi | 55% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,363 psi | 80% | 2421 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,548 psi | 72% | 2470 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,358 psi | 68% | 2398 fps | 95.9% |
| ReloadSwiss RS 70 | 44.8 gr | 86% | 34,795 psi | 73% | 2457 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 34,737 psi | 73% | 2379 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,679 psi | 72% | 2343 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 39,711 psi | 83% | 2444 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 37,101 psi | 78% | 2415 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,882 psi | 75% | 2431 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,463 psi | 78% | 2326 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 38,682 psi | 81% | 2388 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 35,723 psi | 75% | 2385 fps | 98.8% |
| Somchem S365 | 38.9 gr | 80% | 25,701 psi | 54% | 2228 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 80% | 33,924 psi | 71% | 2326 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 30,081 psi | 63% | 2277 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 40,132 psi | 84% | 2438 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 31,676 psi | 66% | 2333 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 28,355 psi | 59% | 2320 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,037 psi | 63% | 2260 fps | 97.3% |
| Winchester 760 | <<locked>> | 86% | 37,652 psi | 79% | 2484 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 92% | 26,614 psi | 56% | 2323 fps | 95.7% |
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 47 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 160gr | Peregrine VRG-3. Alliant Reloder-26 delivers the highest muzzle velocity at 2,717 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,717 fps. Accurate 3100 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 72–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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, Somchem S365, ReloadSwiss RS 70 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 160gr | Peregrine VRG-3 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.