Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 150gr | Norma Soft Point bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP and Vihtavuori N560.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 94% | 54,810 psi | 86% | 2936 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,014 psi | 88% | 2972 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 56,304 psi | 88% | 3087 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 94% | 57,203 psi | 90% | 3087 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 82% | 57,101 psi | 89% | 2933 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,782 psi | 89% | 3028 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 94% | 54,708 psi | 86% | 3031 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,081 psi | 77% | 2920 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,729 psi | 69% | 2877 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,884 psi | 89% | 3028 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,172 psi | 85% | 2986 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,347 psi | 88% | 3015 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,723 psi | 86% | 3028 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,709 psi | 87% | 2999 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,230 psi | 87% | 3061 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,188 psi | 88% | 3091 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,579 psi | 89% | 2989 fps | 95.8% |
| Bofors RP15 | <<locked>> | 98% | 57,348 psi | 90% | 3068 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,184 psi | 80% | 2992 fps | 98.1% |
| Bofors RP5 | <<locked>> | 94% | 54,723 psi | 86% | 3028 fps | 99.2% |
| Bofors RP7 | <<locked>> | 84% | 54,897 psi | 86% | 2917 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,056 psi | 85% | 3015 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 84% | 54,128 psi | 85% | 2969 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 56,681 psi | 89% | 2982 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 92% | 54,578 psi | 86% | 2966 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,348 psi | 90% | 3012 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,145 psi | 90% | 2949 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,056 psi | 85% | 3130 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 54,259 psi | 85% | 3002 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,086 psi | 58% | 1873 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,536 psi | 89% | 2959 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,318 psi | 88% | 2943 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 56,405 psi | 88% | 2963 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,564 psi | 87% | 2949 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 96% | 56,217 psi | 88% | 3068 fps | 98.6% |
| Lovex S065 | <<locked>> | 86% | 56,840 psi | 89% | 2940 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,027 psi | 86% | 2933 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,825 psi | 87% | 2953 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,653 psi | 90% | 3015 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 39,204 psi | 61% | 2792 fps | 97.1% |
| Norma MRP | <<locked>> | 92% | 54,491 psi | 85% | 3048 fps | 99.8% |
| Norma URP | <<locked>> | 86% | 54,404 psi | 85% | 2953 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 57,116 psi | 90% | 3091 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 57,116 psi | 90% | 3015 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,259 psi | 87% | 3018 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,927 psi | 59% | 1916 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,682 psi | 90% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,144 psi | 88% | 2995 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,331 psi | 85% | 3022 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,723 psi | 86% | 3127 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,690 psi | 78% | 2999 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 82% | 56,231 psi | 88% | 2920 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,549 psi | 85% | 2940 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 92% | 55,927 psi | 88% | 3005 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 84% | 54,897 psi | 86% | 2917 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,840 psi | 89% | 2940 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,027 psi | 86% | 2933 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,883 psi | 88% | 2792 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,304 psi | 88% | 2894 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,477 psi | 87% | 2999 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 55,767 psi | 87% | 2913 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,086 psi | 88% | 2933 fps | 97.8% |
| Somchem S365 | <<locked>> | 88% | 54,955 psi | 86% | 2959 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,536 psi | 89% | 2979 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 57,145 psi | 90% | 2887 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,217 psi | 88% | 2946 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,985 psi | 88% | 2959 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 86% | 55,419 psi | 87% | 2949 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,563 psi | 86% | 2979 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,302 psi | 85% | 3038 fps | 97.8% |
| Vihtavuori N565 | <<locked>> | 98% | 54,230 psi | 85% | 3018 fps | 98% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,792 psi | 80% | 3005 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,782 psi | 87% | 2904 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,128 psi | 85% | 2969 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,345 psi | 84% | 3081 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,376 psi | 88% | 2972 fps | 99.2% |
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% | 34,156 psi | 54% | 2536 fps | 96.6% |
| Accurate 4350 | <<locked>> | 80% | 45,803 psi | 72% | 2802 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 42,598 psi | 67% | 2825 fps | 95.5% |
| Accurate MAGPRO | <<locked>> | 88% | 46,369 psi | 73% | 2890 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 53,534 psi | 84% | 2877 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,029 psi | 60% | 2661 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 88% | 44,454 psi | 70% | 2835 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 96% | 42,815 psi | 67% | 2792 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 92% | 33,721 psi | 53% | 2621 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,714 psi | 69% | 2805 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,647 psi | 79% | 2930 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,203 psi | 60% | 2661 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,943 psi | 61% | 2717 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,750 psi | 51% | 2562 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,414 psi | 48% | 2520 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,679 psi | 56% | 2697 fps | 98.5% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,084 psi | 83% | 2927 fps | 95% |
| Bofors RP15 | <<locked>> | 86% | 38,595 psi | 60% | 2707 fps | 95.3% |
| Bofors RP30 | <<locked>> | 94% | 41,626 psi | 65% | 2805 fps | 95.7% |
| Bofors RP5 | <<locked>> | 84% | 38,943 psi | 61% | 2717 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 48,486 psi | 76% | 2805 fps | 98.8% |
| Hodgdon H1000 | <<locked>> | 92% | 41,089 psi | 64% | 2756 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 47,311 psi | 74% | 2848 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 49,835 psi | 78% | 2864 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 86% | 44,585 psi | 70% | 2782 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 88% | 46,644 psi | 73% | 2825 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,249 psi | 65% | 2687 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,216 psi | 57% | 2726 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 46,804 psi | 73% | 2871 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,804 psi | 44% | 1673 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,801 psi | 69% | 2730 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,835 psi | 78% | 2831 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 43,540 psi | 68% | 2743 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,265 psi | 68% | 2723 fps | 95% |
| IMR 7828 SSC | <<locked>> | 88% | 42,801 psi | 67% | 2812 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 47,384 psi | 74% | 2782 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 45,629 psi | 72% | 2766 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 31,328 psi | 49% | 2461 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 43,830 psi | 69% | 2769 fps | 96.8% |
| Norma 217 | <<locked>> | 96% | 34,374 psi | 54% | 2667 fps | 95% |
| Norma MRP | 62.2 gr | 80% | 35,607 psi | 56% | 2664 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 44,802 psi | 70% | 2785 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 42,656 psi | 67% | 2822 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 43,656 psi | 68% | 2779 fps | 99% |
| Ramshot Magnum | <<locked>> | 86% | 35,462 psi | 56% | 2628 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,456 psi | 45% | 1716 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,809 psi | 84% | 2972 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,585 psi | 71% | 2818 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,932 psi | 69% | 2838 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 35,433 psi | 56% | 2700 fps | 96% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 46,079 psi | 72% | 2927 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 52,678 psi | 83% | 2867 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 42,163 psi | 66% | 2707 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 80% | 37,434 psi | 59% | 2641 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 48,486 psi | 76% | 2805 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,384 psi | 74% | 2782 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 45,629 psi | 72% | 2766 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,605 psi | 82% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,340 psi | 73% | 2726 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,115 psi | 58% | 2638 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 52,518 psi | 82% | 2861 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,876 psi | 72% | 2753 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 41,742 psi | 65% | 2740 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,043 psi | 60% | 2628 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 80% | 50,198 psi | 79% | 2782 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,340 psi | 73% | 2785 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 37,550 psi | 59% | 2612 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 45,701 psi | 72% | 2785 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 36,724 psi | 58% | 2641 fps | 99.2% |
| Vihtavuori N560 | 66.8 gr | 86% | 44,034 psi | 69% | 2844 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 92% | 44,193 psi | 69% | 2831 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 98% | 47,195 psi | 74% | 2936 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,339 psi | 71% | 2743 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,500 psi | 74% | 2851 fps | 99% |
| Winchester StaBALL HD | 61.5 gr | 80% | 29,066 psi | 46% | 2569 fps | 99.3% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,943 psi | 63% | 2671 fps | 95.9% |
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 76 powders for 7 mm Weath. Mag. loaded with the .284 | 150gr | Norma Soft Point. Hodgdon Retumbo delivers the highest muzzle velocity at 3,130 fps; across all powders the maximum-charge window runs from 1,873 fps to 3,130 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 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 150.0 gr projectile in 0.284" calls for a 1:12.5 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Weath. Mag. with the .284 | 150gr | Norma Soft Point 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.