Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 145gr | Fox Classic Hunter bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate MAGPRO and Norma MRP.
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 2700 | <<locked>> | 82% | 56,956 psi | 89% | 2953 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 56,463 psi | 88% | 3005 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,420 psi | 88% | 2923 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,215 psi | 85% | 2989 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,230 psi | 87% | 3097 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 56,376 psi | 88% | 2963 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,622 psi | 87% | 3048 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 98% | 56,884 psi | 89% | 3100 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,073 psi | 61% | 2799 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,464 psi | 90% | 2986 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,464 psi | 90% | 3009 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,463 psi | 87% | 3054 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,739 psi | 89% | 3071 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,897 psi | 86% | 3031 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,318 psi | 88% | 3094 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,406 psi | 90% | 3071 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,385 psi | 77% | 3009 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,853 psi | 84% | 3104 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,187 psi | 86% | 3074 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 54,708 psi | 86% | 2946 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,237 psi | 71% | 2923 fps | 96.2% |
| Bofors RP5 | <<locked>> | 98% | 56,318 psi | 88% | 3094 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 57,624 psi | 90% | 2999 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,805 psi | 76% | 2949 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 82% | 54,882 psi | 86% | 2966 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,550 psi | 89% | 3051 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 55,927 psi | 88% | 3009 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 56,956 psi | 89% | 3041 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,854 psi | 88% | 3022 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,564 psi | 87% | 2972 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,385 psi | 76% | 3054 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 88% | 57,217 psi | 90% | 3091 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,651 psi | 57% | 1880 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,724 psi | 87% | 2943 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,448 psi | 87% | 2979 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,782 psi | 87% | 2969 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 54,723 psi | 86% | 2982 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,752 psi | 86% | 2972 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 98% | 54,505 psi | 85% | 3077 fps | 97.8% |
| Lovex S062 | <<locked>> | 82% | 55,854 psi | 88% | 2933 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,999 psi | 88% | 2966 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,537 psi | 90% | 3012 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,009 psi | 78% | 2904 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 56,753 psi | 89% | 2992 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,536 psi | 89% | 3038 fps | 98.8% |
| Norma MRP | <<locked>> | 96% | 56,173 psi | 88% | 3120 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 56,811 psi | 89% | 3035 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,027 psi | 86% | 3094 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 55,709 psi | 87% | 3038 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,229 psi | 83% | 3025 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,434 psi | 59% | 1926 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,795 psi | 86% | 2953 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,159 psi | 88% | 3061 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,317 psi | 85% | 3012 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,913 psi | 89% | 3107 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,863 psi | 77% | 3058 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 82% | 57,696 psi | 90% | 2946 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 54,824 psi | 86% | 2946 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,014 psi | 89% | 3015 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 54,230 psi | 85% | 3018 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 57,624 psi | 90% | 2999 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,999 psi | 88% | 2966 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 55,854 psi | 88% | 2933 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,537 psi | 90% | 3012 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,637 psi | 89% | 3009 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,463 psi | 87% | 2825 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,477 psi | 87% | 2917 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,450 psi | 90% | 3071 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 54,839 psi | 86% | 2943 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,013 psi | 86% | 2949 fps | 97% |
| Somchem S365 | <<locked>> | 92% | 56,608 psi | 89% | 3031 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,868 psi | 86% | 2992 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 86% | 56,028 psi | 88% | 2913 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,969 psi | 86% | 2969 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,331 psi | 85% | 2969 fps | 99% |
| Vihtavuori N540 | <<locked>> | 82% | 56,739 psi | 89% | 2910 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,172 psi | 85% | 2976 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,796 psi | 87% | 3041 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,202 psi | 88% | 3110 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,837 psi | 81% | 3018 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,665 psi | 86% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,550 psi | 89% | 3051 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,954 psi | 85% | 3146 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,868 psi | 86% | 2986 fps | 98.6% |
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 2700 | <<locked>> | 80% | 53,272 psi | 83% | 2890 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 32,184 psi | 50% | 2526 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 52,910 psi | 83% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,959 psi | 64% | 2749 fps | 99.2% |
| Accurate MAGPRO | 71.5 gr | 94% | 51,372 psi | 81% | 3028 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 49,676 psi | 78% | 2854 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,438 psi | 67% | 2799 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 92% | 46,325 psi | 73% | 2907 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 98% | 36,622 psi | 57% | 2736 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,618 psi | 79% | 2881 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,940 psi | 85% | 2953 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,668 psi | 62% | 2762 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,658 psi | 72% | 2890 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,523 psi | 62% | 2730 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,958 psi | 63% | 2782 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,138 psi | 46% | 2503 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,082 psi | 49% | 2575 fps | 95.1% |
| Alliant Reloder-26 | 61.5 gr | 80% | 31,386 psi | 49% | 2621 fps | 96.2% |
| Bofors RP15 | <<locked>> | 90% | 39,595 psi | 62% | 2772 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 51,010 psi | 80% | 2890 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,250 psi | 66% | 2861 fps | 95.2% |
| Bofors RP5 | <<locked>> | 88% | 39,958 psi | 63% | 2782 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 44,657 psi | 70% | 2769 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 42,424 psi | 66% | 2818 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 51,474 psi | 81% | 2910 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 43,033 psi | 67% | 2805 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 45,803 psi | 72% | 2825 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 49,588 psi | 78% | 2917 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,660 psi | 76% | 2897 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,173 psi | 58% | 2644 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,552 psi | 62% | 2851 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 42,163 psi | 66% | 2815 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,398 psi | 43% | 1683 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,286 psi | 82% | 2890 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,176 psi | 63% | 2690 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,021 psi | 72% | 2795 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 39,218 psi | 61% | 2697 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,080 psi | 75% | 2851 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 44,338 psi | 69% | 2881 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 52,678 psi | 83% | 2887 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,511 psi | 68% | 2743 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 41,713 psi | 65% | 2726 fps | 97.6% |
| Lovex S071 | <<locked>> | 88% | 33,634 psi | 53% | 2562 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 53,243 psi | 83% | 2940 fps | 100% |
| Norma 204 | <<locked>> | 82% | 42,873 psi | 67% | 2785 fps | 95.9% |
| Norma MRP | 62.7 gr | 84% | 36,477 psi | 57% | 2726 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 40,683 psi | 64% | 2746 fps | 99.1% |
| Ramshot Grand | <<locked>> | 92% | 44,179 psi | 69% | 2890 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 39,581 psi | 62% | 2733 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 39,160 psi | 61% | 2753 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 44% | 1722 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,256 psi | 80% | 2894 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,515 psi | 76% | 2943 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,886 psi | 64% | 2769 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,465 psi | 62% | 2779 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,347 psi | 57% | 2759 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 54,389 psi | 85% | 2894 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,095 psi | 75% | 2838 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,830 psi | 69% | 2776 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 41,249 psi | 65% | 2769 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 44,657 psi | 70% | 2769 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,511 psi | 68% | 2743 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 52,678 psi | 83% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,713 psi | 65% | 2726 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,647 psi | 78% | 2897 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,936 psi | 77% | 2730 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,438 psi | 67% | 2687 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,886 psi | 64% | 2762 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 48,283 psi | 76% | 2838 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,935 psi | 75% | 2825 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 37,275 psi | 58% | 2697 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,593 psi | 57% | 2635 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 46,151 psi | 72% | 2759 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,061 psi | 66% | 2743 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 38,653 psi | 61% | 2674 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 53,345 psi | 84% | 2864 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,568 psi | 65% | 2746 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 32,460 psi | 51% | 2579 fps | 97.6% |
| Vihtavuori N560 | <<locked>> | 90% | 45,614 psi | 71% | 2917 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 44,933 psi | 70% | 2887 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,292 psi | 65% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,236 psi | 68% | 2808 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,657 psi | 40% | 2477 fps | 96.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,394 psi | 65% | 2740 fps | 95.6% |
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 84 powders for 7 mm Weath. Mag. loaded with the .284 | 145gr | Fox Classic Hunter. Winchester StaBALL HD delivers the highest muzzle velocity at 3,146 fps; across all powders the maximum-charge window runs from 1,880 fps to 3,146 fps. ADI AR 2225 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, 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. Alliant Reloder-26, Accurate MAGPRO, Norma MRP rank at the top here: for 7 mm Weath. Mag. with the .284 | 145gr | Fox Classic Hunter 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.