Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 168gr | Peregrine Glider GRM bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand and Accurate High Country.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 55,869 psi | 88% | 2795 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,537 psi | 90% | 2828 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 53,766 psi | 84% | 2887 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 94% | 54,766 psi | 86% | 2894 fps | 98% |
| ADI AR 2208 | <<locked>> | 82% | 55,637 psi | 87% | 2743 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 54,940 psi | 86% | 2838 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 56,202 psi | 88% | 2894 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,920 psi | 74% | 2733 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,582 psi | 65% | 2690 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,768 psi | 89% | 2762 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,129 psi | 86% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,144 psi | 88% | 2848 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,346 psi | 85% | 2825 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,970 psi | 88% | 2887 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,276 psi | 90% | 2858 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,779 psi | 83% | 2867 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 53,548 psi | 84% | 2894 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 54,853 psi | 86% | 2805 fps | 96.1% |
| Bofors RP15 | <<locked>> | 98% | 55,085 psi | 86% | 2874 fps | 99.5% |
| Bofors RP3 | <<locked>> | 82% | 57,682 psi | 90% | 2779 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,544 psi | 76% | 2802 fps | 98.3% |
| Bofors RP5 | <<locked>> | 96% | 55,970 psi | 88% | 2887 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 56,666 psi | 89% | 2782 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,837 psi | 81% | 2822 fps | 99% |
| Hodgdon H414 | <<locked>> | 86% | 55,883 psi | 88% | 2835 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 55,216 psi | 87% | 2795 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 94% | 56,362 psi | 88% | 2838 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,259 psi | 87% | 2822 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,245 psi | 87% | 2756 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,605 psi | 81% | 2930 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 56,333 psi | 88% | 2874 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,999 psi | 58% | 1736 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,723 psi | 86% | 2769 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,911 psi | 86% | 2756 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 54,505 psi | 85% | 2772 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,319 psi | 90% | 2818 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 96% | 53,998 psi | 85% | 2871 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 55,129 psi | 86% | 2749 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,782 psi | 89% | 2799 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,388 psi | 84% | 2759 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,709 psi | 87% | 2825 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 36,970 psi | 58% | 2612 fps | 97.2% |
| Norma MRP | <<locked>> | 94% | 56,043 psi | 88% | 2913 fps | 100% |
| Norma URP | <<locked>> | 88% | 56,188 psi | 88% | 2815 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,665 psi | 86% | 2894 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 55,100 psi | 86% | 2822 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,971 psi | 89% | 2887 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,681 psi | 59% | 1778 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,493 psi | 90% | 2792 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,782 psi | 87% | 2835 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,027 psi | 85% | 2802 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,202 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,141 psi | 82% | 2927 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 46,934 psi | 74% | 2805 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 82% | 54,288 psi | 85% | 2726 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,362 psi | 88% | 2808 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 94% | 57,522 psi | 90% | 2867 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 86% | 56,666 psi | 89% | 2782 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,129 psi | 86% | 2749 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,782 psi | 89% | 2799 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,941 psi | 88% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,636 psi | 86% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,418 psi | 85% | 2703 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,072 psi | 89% | 2864 fps | 99.7% |
| Somchem S355 | <<locked>> | 84% | 57,580 psi | 90% | 2772 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,215 psi | 85% | 2749 fps | 98.1% |
| Somchem S365 | <<locked>> | 90% | 56,565 psi | 89% | 2818 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,215 psi | 85% | 2785 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 55,259 psi | 87% | 2697 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,491 psi | 85% | 2759 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,522 psi | 90% | 2822 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 57,043 psi | 89% | 2812 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,521 psi | 87% | 2831 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,999 psi | 88% | 2910 fps | 98.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,317 psi | 87% | 2884 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 48,124 psi | 75% | 2812 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 53,867 psi | 84% | 2717 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,115 psi | 88% | 2838 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,694 psi | 86% | 2943 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,114 psi | 85% | 2782 fps | 99.3% |
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% | 32,169 psi | 50% | 2359 fps | 96.8% |
| Accurate 4350 | <<locked>> | 80% | 43,656 psi | 68% | 2612 fps | 100% |
| Accurate High Country | 59.2 gr | 84% | 40,524 psi | 64% | 2641 fps | 95.8% |
| Accurate MAGPRO | 63.2 gr | 88% | 44,179 psi | 69% | 2703 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 52,054 psi | 82% | 2690 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,593 psi | 57% | 2490 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 86% | 39,972 psi | 63% | 2595 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 96% | 40,930 psi | 64% | 2612 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 92% | 32,024 psi | 50% | 2451 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,359 psi | 84% | 2713 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,148 psi | 66% | 2625 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,762 psi | 76% | 2740 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,579 psi | 57% | 2487 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 82% | 34,751 psi | 54% | 2484 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,198 psi | 49% | 2395 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,979 psi | 45% | 2356 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,852 psi | 53% | 2523 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 51,343 psi | 80% | 2746 fps | 95.3% |
| Bofors RP15 | <<locked>> | 86% | 37,014 psi | 58% | 2536 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 53,911 psi | 84% | 2726 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 39,508 psi | 62% | 2625 fps | 96% |
| Bofors RP5 | <<locked>> | 82% | 34,751 psi | 54% | 2484 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 46,775 psi | 73% | 2621 fps | 99% |
| Hodgdon H1000 | <<locked>> | 92% | 39,204 psi | 61% | 2579 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 45,556 psi | 71% | 2664 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 48,312 psi | 76% | 2680 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 86% | 42,815 psi | 67% | 2605 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 41,974 psi | 66% | 2585 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,755 psi | 62% | 2513 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 34,592 psi | 54% | 2552 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 45,020 psi | 71% | 2687 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,586 psi | 43% | 1549 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,337 psi | 66% | 2556 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,399 psi | 76% | 2651 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 41,800 psi | 66% | 2566 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 41,756 psi | 65% | 2546 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 88% | 41,104 psi | 64% | 2631 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 45,847 psi | 72% | 2598 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 43,918 psi | 69% | 2585 fps | 99.1% |
| Lovex S071 | <<locked>> | 82% | 29,588 psi | 46% | 2293 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 42,264 psi | 66% | 2592 fps | 97.2% |
| Norma 217 | <<locked>> | 96% | 32,416 psi | 51% | 2493 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 33,823 psi | 53% | 2490 fps | 96.2% |
| Norma URP | <<locked>> | 80% | 43,047 psi | 67% | 2602 fps | 99.9% |
| Ramshot Grand | 60.1 gr | 86% | 37,913 psi | 59% | 2575 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 42,018 psi | 66% | 2602 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 33,605 psi | 53% | 2454 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,253 psi | 44% | 1588 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,853 psi | 84% | 2736 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,895 psi | 81% | 2782 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,685 psi | 68% | 2635 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,192 psi | 66% | 2654 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,663 psi | 53% | 2530 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 43,410 psi | 68% | 2736 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 50,705 psi | 79% | 2677 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,669 psi | 64% | 2530 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 35,810 psi | 56% | 2470 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 46,775 psi | 73% | 2621 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,847 psi | 72% | 2598 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 43,918 psi | 69% | 2585 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,344 psi | 82% | 2733 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,285 psi | 80% | 2562 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,831 psi | 70% | 2549 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,505 psi | 56% | 2467 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 50,850 psi | 80% | 2674 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 41,336 psi | 65% | 2520 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 39,914 psi | 63% | 2559 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,318 psi | 57% | 2454 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 80% | 48,472 psi | 76% | 2598 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,556 psi | 70% | 2602 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 33,649 psi | 53% | 2388 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 43,903 psi | 69% | 2602 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 34,940 psi | 55% | 2467 fps | 99.3% |
| Vihtavuori N560 | <<locked>> | 86% | 42,177 psi | 66% | 2664 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 92% | 41,829 psi | 66% | 2644 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 98% | 44,831 psi | 70% | 2749 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,584 psi | 68% | 2566 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,788 psi | 72% | 2667 fps | 99.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,456 psi | 43% | 2398 fps | 99.4% |
| Winchester Supreme 780 | <<locked>> | 82% | 35,491 psi | 56% | 2434 fps | 95.2% |
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 80 powders for 7 mm Weath. Mag. loaded with the .284 | 168gr | Peregrine Glider GRM. Winchester StaBALL HD delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,736 fps to 2,943 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 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 168.0 gr projectile in 0.284" calls for a 1:8.0 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, Ramshot Grand, Accurate High Country rank at the top here: for 7 mm Weath. Mag. with the .284 | 168gr | Peregrine Glider GRM 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.