Load Specifications
Load data in caliber 7 mm Mag. Fl. H&H with .284 | 140gr | Peregrine VRG-3 bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, Somchem S365 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% | 42,873 psi | 90% | 2657 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 43,178 psi | 90% | 2703 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 42,090 psi | 88% | 2753 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 86% | 43,004 psi | 90% | 2680 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 40,408 psi | 84% | 2756 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,192 psi | 88% | 2700 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,641 psi | 89% | 2713 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,177 psi | 88% | 2769 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,032 psi | 88% | 2799 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,679 psi | 75% | 2654 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,552 psi | 83% | 2802 fps | 96.6% |
| Bofors RP3 | <<locked>> | 86% | 41,887 psi | 88% | 2703 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 86% | 43,120 psi | 90% | 2713 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 41,046 psi | 86% | 2703 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 40,799 psi | 85% | 2710 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,012 psi | 73% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 43,294 psi | 90% | 2694 fps | 99.2% |
| IMR 4064 | <<locked>> | 84% | 42,366 psi | 89% | 2664 fps | 98.4% |
| IMR 4831 | <<locked>> | 96% | 43,294 psi | 90% | 2759 fps | 98.1% |
| IMR 4895 | <<locked>> | 82% | 40,959 psi | 86% | 2690 fps | 98.6% |
| Lovex S062 | <<locked>> | 84% | 42,047 psi | 88% | 2664 fps | 99.5% |
| Lovex S065 | <<locked>> | 90% | 41,452 psi | 87% | 2654 fps | 96.1% |
| Norma 203B | <<locked>> | 84% | 41,974 psi | 88% | 2700 fps | 98.7% |
| Norma URP | <<locked>> | 94% | 42,308 psi | 88% | 2753 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 84% | 41,756 psi | 87% | 2717 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,288 psi | 74% | 1788 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,090 psi | 88% | 2766 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 41,858 psi | 87% | 2805 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 42,018 psi | 88% | 2776 fps | 97.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,467 psi | 89% | 2792 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 82% | 41,162 psi | 86% | 2628 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 88% | 42,061 psi | 88% | 2700 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,452 psi | 87% | 2654 fps | 96.1% |
| Shooters World Precision | <<locked>> | 84% | 42,047 psi | 88% | 2664 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 40,785 psi | 85% | 2707 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 43,105 psi | 90% | 2697 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,467 psi | 89% | 2592 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 42,902 psi | 90% | 2703 fps | 99.2% |
| Somchem S365 | <<locked>> | 98% | 43,149 psi | 90% | 2812 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 84% | 43,294 psi | 90% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,553 psi | 87% | 2625 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 41,089 psi | 86% | 2638 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 92% | 41,597 psi | 87% | 2700 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 84% | 42,757 psi | 89% | 2664 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 40,785 psi | 85% | 2700 fps | 97.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,348 psi | 80% | 2726 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,843 psi | 87% | 2680 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,836 psi | 67% | 2631 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,496 psi | 89% | 2700 fps | 99.2% |
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% | 37,376 psi | 78% | 2559 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,404 psi | 74% | 2552 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 34,055 psi | 71% | 2582 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 35,447 psi | 74% | 2520 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,623 psi | 79% | 2690 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,679 psi | 72% | 2539 fps | 97.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,449 psi | 78% | 2605 fps | 97.2% |
| Alliant Reloder-16 | 43.5 gr | 88% | 34,867 psi | 73% | 2598 fps | 95.6% |
| Alliant Reloder-17 | 42.6 gr | 80% | 29,965 psi | 63% | 2497 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,733 psi | 62% | 2490 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 98% | 37,072 psi | 77% | 2740 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 33,968 psi | 71% | 2536 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 80% | 35,215 psi | 74% | 2543 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,733 psi | 62% | 2434 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,971 psi | 79% | 2651 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,020 psi | 54% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,596 psi | 85% | 2641 fps | 98.8% |
| IMR 4064 | <<locked>> | 80% | 37,188 psi | 78% | 2556 fps | 97.2% |
| IMR 4831 | <<locked>> | 88% | 33,156 psi | 69% | 2539 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 38,363 psi | 80% | 2635 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 36,927 psi | 77% | 2559 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 38,899 psi | 81% | 2598 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 36,854 psi | 77% | 2592 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 34,751 psi | 73% | 2589 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 36,230 psi | 76% | 2598 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,107 psi | 55% | 1594 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,030 psi | 82% | 2703 fps | 97.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 31,981 psi | 67% | 2569 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,564 psi | 76% | 2661 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,610 psi | 83% | 2726 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 38,595 psi | 81% | 2572 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 32,111 psi | 67% | 2484 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 88% | 38,899 psi | 81% | 2598 fps | 95.3% |
| Shooters World Precision | <<locked>> | 80% | 36,927 psi | 77% | 2559 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,199 psi | 69% | 2533 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,219 psi | 84% | 2641 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,998 psi | 73% | 2451 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 33,025 psi | 69% | 2490 fps | 96.9% |
| Somchem S365 | 42.4 gr | 84% | 27,079 psi | 57% | 2418 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 38,058 psi | 80% | 2566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,943 psi | 81% | 2575 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,502 psi | 66% | 2434 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 33,939 psi | 71% | 2533 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 37,376 psi | 78% | 2562 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 35,592 psi | 74% | 2589 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 94% | 31,589 psi | 66% | 2566 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,008 psi | 63% | 2405 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 29,704 psi | 62% | 2559 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,566 psi | 83% | 2644 fps | 98.7% |
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 49 powders for 7 mm Mag. Fl. H&H loaded with the .284 | 140gr | Peregrine VRG-3. Somchem S365 delivers the highest muzzle velocity at 2,812 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,812 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 49 of the 49 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.0 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. Alliant Reloder-16, Somchem S365, Alliant Reloder-17 rank at the top here: for 7 mm Mag. Fl. H&H with the .284 | 140gr | 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.