Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 165gr | Peregrine VLR-5 bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Accurate High Country and Alliant Reloder-26.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 56,507 psi | 89% | 2831 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,317 psi | 85% | 2812 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 54,404 psi | 85% | 2927 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 94% | 55,259 psi | 87% | 2930 fps | 98% |
| ADI AR 2208 | <<locked>> | 82% | 55,941 psi | 88% | 2776 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,448 psi | 87% | 2874 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 96% | 57,072 psi | 89% | 2936 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,369 psi | 74% | 2769 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,163 psi | 66% | 2730 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,058 psi | 89% | 2799 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,564 psi | 87% | 2871 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,826 psi | 89% | 2884 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,042 psi | 86% | 2864 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,840 psi | 89% | 2930 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,696 psi | 90% | 2894 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,316 psi | 84% | 2900 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,201 psi | 85% | 2927 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,129 psi | 86% | 2838 fps | 96.1% |
| Bofors RP15 | <<locked>> | 98% | 55,680 psi | 87% | 2910 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,284 psi | 77% | 2838 fps | 98.3% |
| Bofors RP5 | <<locked>> | 96% | 56,840 psi | 89% | 2930 fps | 99.7% |
| Bofors RP7 | <<locked>> | 86% | 57,072 psi | 89% | 2815 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,489 psi | 82% | 2861 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 86% | 56,449 psi | 88% | 2871 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 55,608 psi | 87% | 2831 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 94% | 56,985 psi | 89% | 2874 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,854 psi | 88% | 2858 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,927 psi | 88% | 2795 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,373 psi | 82% | 2969 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 57,014 psi | 89% | 2910 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,970 psi | 58% | 1762 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,288 psi | 87% | 2805 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,100 psi | 86% | 2785 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 54,868 psi | 86% | 2808 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,346 psi | 85% | 2799 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 96% | 54,607 psi | 86% | 2910 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 55,535 psi | 87% | 2785 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,116 psi | 90% | 2831 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,795 psi | 84% | 2792 fps | 100% |
| Norma 204 | <<locked>> | 88% | 56,188 psi | 88% | 2861 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 37,434 psi | 59% | 2644 fps | 97.3% |
| Norma MRP | <<locked>> | 94% | 56,681 psi | 89% | 2953 fps | 100% |
| Norma URP | <<locked>> | 88% | 56,565 psi | 89% | 2848 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,216 psi | 87% | 2930 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 55,593 psi | 87% | 2858 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,624 psi | 90% | 2923 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 59% | 1801 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 56,246 psi | 88% | 2871 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,578 psi | 86% | 2841 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,927 psi | 89% | 2923 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,939 psi | 83% | 2969 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 47,688 psi | 75% | 2844 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 82% | 54,592 psi | 86% | 2759 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,826 psi | 89% | 2844 fps | 99% |
| Rottweil R 905 | <<locked>> | 92% | 54,389 psi | 85% | 2851 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 57,072 psi | 89% | 2815 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,535 psi | 87% | 2785 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,116 psi | 90% | 2831 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,391 psi | 88% | 2822 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,998 psi | 86% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,042 psi | 86% | 2743 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 53,954 psi | 85% | 2844 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 54,433 psi | 85% | 2756 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,491 psi | 85% | 2779 fps | 98.1% |
| Somchem S365 | <<locked>> | 90% | 56,898 psi | 89% | 2851 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,882 psi | 86% | 2822 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 55,738 psi | 87% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,882 psi | 86% | 2792 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,288 psi | 85% | 2802 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 57,595 psi | 90% | 2848 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,318 psi | 88% | 2871 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 56,579 psi | 89% | 2946 fps | 98.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 56,028 psi | 88% | 2923 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 48,950 psi | 77% | 2851 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,317 psi | 85% | 2753 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,449 psi | 88% | 2871 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 55,347 psi | 87% | 2976 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,723 psi | 86% | 2818 fps | 99.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 32,605 psi | 51% | 2392 fps | 96.8% |
| Accurate 4350 | <<locked>> | 80% | 44,222 psi | 69% | 2648 fps | 100% |
| Accurate High Country | 60.6 gr | 84% | 41,089 psi | 64% | 2677 fps | 95.9% |
| Accurate MAGPRO | 64.6 gr | 88% | 44,599 psi | 70% | 2740 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 52,663 psi | 83% | 2730 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,043 psi | 58% | 2523 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 86% | 40,466 psi | 63% | 2631 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 96% | 41,437 psi | 65% | 2648 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 92% | 32,314 psi | 51% | 2480 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,708 psi | 84% | 2749 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,525 psi | 67% | 2657 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,240 psi | 77% | 2776 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,028 psi | 58% | 2520 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 82% | 35,114 psi | 55% | 2516 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,502 psi | 49% | 2425 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,327 psi | 46% | 2385 fps | 96% |
| Alliant Reloder-26 | 59.4 gr | 80% | 34,214 psi | 54% | 2552 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 51,924 psi | 81% | 2782 fps | 95.4% |
| Bofors RP15 | <<locked>> | 86% | 37,362 psi | 59% | 2566 fps | 95.7% |
| Bofors RP30 | <<locked>> | 92% | 37,362 psi | 59% | 2598 fps | 95% |
| Bofors RP5 | <<locked>> | 82% | 35,114 psi | 55% | 2516 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 47,326 psi | 74% | 2657 fps | 99% |
| Hodgdon H1000 | <<locked>> | 92% | 39,726 psi | 62% | 2615 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 46,035 psi | 72% | 2697 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 48,805 psi | 76% | 2717 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 86% | 43,352 psi | 68% | 2638 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 86% | 42,482 psi | 67% | 2621 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,118 psi | 63% | 2543 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 34,824 psi | 55% | 2582 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 45,556 psi | 71% | 2723 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,557 psi | 43% | 1572 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,830 psi | 67% | 2592 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,689 psi | 76% | 2680 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 42,105 psi | 66% | 2595 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,105 psi | 66% | 2579 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 88% | 41,582 psi | 65% | 2667 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 46,151 psi | 72% | 2631 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 44,425 psi | 70% | 2621 fps | 99.1% |
| Lovex S071 | <<locked>> | 82% | 29,907 psi | 47% | 2323 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 42,699 psi | 67% | 2625 fps | 97.2% |
| Norma 217 | <<locked>> | 96% | 32,721 psi | 51% | 2523 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 34,200 psi | 54% | 2520 fps | 96.2% |
| Norma URP | <<locked>> | 80% | 43,598 psi | 68% | 2638 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 38,363 psi | 60% | 2608 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 42,467 psi | 67% | 2635 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 33,982 psi | 53% | 2487 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,224 psi | 44% | 1611 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,431 psi | 82% | 2818 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,135 psi | 69% | 2671 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,554 psi | 67% | 2687 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,953 psi | 53% | 2559 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 44,121 psi | 69% | 2776 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 51,314 psi | 80% | 2713 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,089 psi | 64% | 2566 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 36,289 psi | 57% | 2503 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 47,326 psi | 74% | 2657 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,151 psi | 72% | 2631 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 44,425 psi | 70% | 2621 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,852 psi | 83% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,692 psi | 81% | 2595 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,121 psi | 71% | 2582 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,969 psi | 56% | 2500 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 51,227 psi | 80% | 2710 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 41,785 psi | 65% | 2552 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 40,480 psi | 63% | 2595 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,753 psi | 58% | 2487 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 80% | 49,023 psi | 77% | 2635 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,063 psi | 71% | 2635 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 34,040 psi | 53% | 2421 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 44,353 psi | 70% | 2638 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 35,259 psi | 55% | 2497 fps | 99.3% |
| Vihtavuori N560 | <<locked>> | 86% | 42,627 psi | 67% | 2697 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 92% | 42,395 psi | 66% | 2680 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 98% | 45,440 psi | 71% | 2785 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,135 psi | 69% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,253 psi | 72% | 2703 fps | 99.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,804 psi | 44% | 2428 fps | 99.4% |
| Winchester Supreme 780 | <<locked>> | 82% | 36,027 psi | 56% | 2470 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 78 powders for 7 mm Weath. Mag. loaded with the .284 | 165gr | Peregrine VLR-5. Winchester StaBALL HD delivers the highest muzzle velocity at 2,976 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,976 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.284" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Accurate MAGPRO, Accurate High Country, Alliant Reloder-26 rank at the top here: for 7 mm Weath. Mag. with the .284 | 165gr | Peregrine VLR-5 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.