Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 154gr | Norma Soft Point bullet and 75 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 55,042 psi | 86% | 2907 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,550 psi | 89% | 2940 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 56,608 psi | 89% | 3054 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 94% | 57,595 psi | 90% | 3061 fps | 98% |
| ADI AR 2208 | <<locked>> | 82% | 57,130 psi | 90% | 2897 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,203 psi | 90% | 2995 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 54,955 psi | 86% | 2999 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,182 psi | 77% | 2890 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,874 psi | 69% | 2848 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,174 psi | 90% | 2995 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,723 psi | 86% | 2956 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,797 psi | 89% | 2986 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,998 psi | 86% | 2995 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,217 psi | 88% | 2969 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,332 psi | 87% | 3028 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,652 psi | 89% | 3058 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,666 psi | 89% | 2956 fps | 96.1% |
| Bofors RP15 | <<locked>> | 98% | 57,667 psi | 90% | 3038 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,358 psi | 80% | 2963 fps | 98.4% |
| Bofors RP5 | <<locked>> | 94% | 54,998 psi | 86% | 2995 fps | 99.3% |
| Bofors RP7 | <<locked>> | 84% | 55,071 psi | 86% | 2884 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,462 psi | 85% | 2986 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 84% | 54,447 psi | 85% | 2936 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 57,145 psi | 90% | 2953 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 54,810 psi | 86% | 2936 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,595 psi | 90% | 2979 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,464 psi | 90% | 2913 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,259 psi | 85% | 3097 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 54,737 psi | 86% | 2972 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,014 psi | 58% | 1841 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,826 psi | 89% | 2927 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,463 psi | 88% | 2907 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 56,724 psi | 89% | 2930 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,956 psi | 88% | 2923 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 96% | 56,536 psi | 89% | 3035 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 57,305 psi | 90% | 2907 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,492 psi | 87% | 2904 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,086 psi | 88% | 2920 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,070 psi | 85% | 2923 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 39,479 psi | 62% | 2769 fps | 97.4% |
| Norma MRP | <<locked>> | 92% | 54,795 psi | 86% | 3018 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 54,897 psi | 86% | 2923 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 57,276 psi | 90% | 3058 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 57,261 psi | 90% | 2979 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,854 psi | 88% | 2992 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,869 psi | 59% | 1886 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,521 psi | 89% | 2963 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,766 psi | 86% | 2989 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,056 psi | 86% | 3097 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,024 psi | 78% | 2972 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 82% | 56,623 psi | 89% | 2887 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,897 psi | 86% | 2910 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 92% | 56,086 psi | 88% | 2972 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 55,071 psi | 86% | 2884 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,305 psi | 90% | 2907 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,492 psi | 87% | 2904 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,144 psi | 88% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,594 psi | 89% | 2861 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,651 psi | 87% | 2966 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 56,115 psi | 88% | 2881 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,333 psi | 88% | 2904 fps | 98.1% |
| Somchem S365 | <<locked>> | 88% | 55,317 psi | 87% | 2927 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,724 psi | 89% | 2946 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 57,334 psi | 90% | 2851 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,739 psi | 89% | 2917 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,260 psi | 88% | 2923 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 86% | 55,724 psi | 87% | 2917 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,737 psi | 86% | 2943 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,650 psi | 86% | 3012 fps | 98.1% |
| Vihtavuori N565 | <<locked>> | 98% | 54,418 psi | 85% | 2989 fps | 98.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,039 psi | 80% | 2979 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,231 psi | 88% | 2874 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,665 psi | 86% | 2943 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,795 psi | 84% | 3048 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,710 psi | 89% | 2943 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% | 34,287 psi | 54% | 2507 fps | 96.9% |
| Accurate 4350 | <<locked>> | 80% | 45,934 psi | 72% | 2769 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 42,859 psi | 67% | 2799 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 88% | 46,586 psi | 73% | 2864 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 53,795 psi | 84% | 2844 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,319 psi | 60% | 2638 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 86% | 41,829 psi | 66% | 2743 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 96% | 43,047 psi | 67% | 2766 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 92% | 33,852 psi | 53% | 2598 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,019 psi | 69% | 2776 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,850 psi | 80% | 2897 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,319 psi | 60% | 2631 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,695 psi | 57% | 2631 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,996 psi | 52% | 2539 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,690 psi | 48% | 2500 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,114 psi | 57% | 2677 fps | 98.8% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,374 psi | 84% | 2900 fps | 95.3% |
| Bofors RP15 | <<locked>> | 86% | 38,986 psi | 61% | 2684 fps | 95.7% |
| Bofors RP30 | <<locked>> | 92% | 39,204 psi | 61% | 2720 fps | 95.1% |
| Bofors RP5 | <<locked>> | 82% | 36,695 psi | 57% | 2631 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 48,762 psi | 76% | 2776 fps | 99% |
| Hodgdon H1000 | <<locked>> | 92% | 41,234 psi | 65% | 2730 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 47,674 psi | 75% | 2818 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 50,212 psi | 79% | 2835 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 44,860 psi | 70% | 2756 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,859 psi | 69% | 2736 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,510 psi | 65% | 2657 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,492 psi | 57% | 2703 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 47,137 psi | 74% | 2841 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,804 psi | 44% | 1647 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,048 psi | 69% | 2703 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,893 psi | 78% | 2799 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 43,859 psi | 69% | 2717 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,410 psi | 68% | 2690 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 88% | 43,105 psi | 68% | 2785 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 47,659 psi | 75% | 2749 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 45,905 psi | 72% | 2736 fps | 99% |
| Lovex S071 | <<locked>> | 80% | 29,675 psi | 47% | 2388 fps | 95% |
| Norma 204 | <<locked>> | 80% | 44,222 psi | 69% | 2740 fps | 97.1% |
| Norma 217 | <<locked>> | 96% | 34,577 psi | 54% | 2644 fps | 95.4% |
| Norma MRP | 61.3 gr | 80% | 35,781 psi | 56% | 2635 fps | 96.2% |
| Norma URP | <<locked>> | 80% | 45,092 psi | 71% | 2756 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 39,871 psi | 62% | 2726 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 44,005 psi | 69% | 2753 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 35,781 psi | 56% | 2608 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,456 psi | 45% | 1690 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,006 psi | 72% | 2792 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,150 psi | 69% | 2808 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,344 psi | 52% | 2615 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 46,369 psi | 73% | 2904 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 52,968 psi | 83% | 2835 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 42,453 psi | 67% | 2677 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 37,695 psi | 59% | 2618 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 48,762 psi | 76% | 2776 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,659 psi | 75% | 2749 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 45,905 psi | 72% | 2736 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,040 psi | 83% | 2713 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,644 psi | 73% | 2697 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,376 psi | 59% | 2612 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 52,823 psi | 83% | 2828 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 43,134 psi | 68% | 2664 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 42,061 psi | 66% | 2710 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,319 psi | 60% | 2605 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 80% | 50,517 psi | 79% | 2753 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,441 psi | 73% | 2749 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,433 psi | 56% | 2530 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 45,861 psi | 72% | 2753 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 37,014 psi | 58% | 2618 fps | 99.4% |
| Vihtavuori N560 | 65.9 gr | 86% | 44,353 psi | 70% | 2818 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 90% | 41,524 psi | 65% | 2743 fps | 95% |
| Vihtavuori N568 | <<locked>> | 98% | 47,616 psi | 75% | 2913 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,556 psi | 71% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,674 psi | 75% | 2818 fps | 99.2% |
| Winchester StaBALL HD | 60.7 gr | 80% | 29,341 psi | 46% | 2549 fps | 99.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,478 psi | 59% | 2585 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 80 powders for 7 mm Weath. Mag. loaded with the .284 | 154gr | Norma Soft Point. Hodgdon Retumbo delivers the highest muzzle velocity at 3,097 fps; across all powders the maximum-charge window runs from 1,841 fps to 3,097 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 154.0 gr projectile in 0.284" calls for a 1:12.0 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Weath. Mag. with the .284 | 154gr | Norma Soft Point they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, IMR 8133 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.