Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 150gr | Nosler SP SolBase 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% | 54,621 psi | 86% | 2933 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,072 psi | 88% | 2972 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 56,115 psi | 88% | 3084 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 94% | 57,043 psi | 89% | 3087 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 82% | 56,869 psi | 89% | 2930 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,623 psi | 89% | 3025 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 94% | 54,534 psi | 85% | 3028 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,704 psi | 76% | 2913 fps | 97.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,598 psi | 68% | 2874 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,652 psi | 89% | 3025 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,186 psi | 85% | 2986 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,159 psi | 88% | 3012 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,534 psi | 85% | 3025 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,506 psi | 87% | 2995 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,795 psi | 86% | 3054 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,999 psi | 88% | 3087 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 57,174 psi | 90% | 3064 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,024 psi | 80% | 2992 fps | 98.1% |
| Bofors RP5 | <<locked>> | 94% | 54,534 psi | 85% | 3025 fps | 99.2% |
| Bofors RP7 | <<locked>> | 84% | 54,723 psi | 86% | 2913 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,925 psi | 85% | 3012 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 86% | 57,551 psi | 90% | 3025 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 56,710 psi | 89% | 2982 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 92% | 54,389 psi | 85% | 2963 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,174 psi | 90% | 3009 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,913 psi | 89% | 2946 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,896 psi | 84% | 3127 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 84% | 54,346 psi | 85% | 3002 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,014 psi | 58% | 1870 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,333 psi | 88% | 2956 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,130 psi | 88% | 2940 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 56,217 psi | 88% | 2959 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,390 psi | 87% | 2946 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 96% | 56,043 psi | 88% | 3064 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 56,884 psi | 89% | 2940 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,071 psi | 86% | 2936 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,637 psi | 87% | 2949 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,464 psi | 90% | 3012 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 39,059 psi | 61% | 2792 fps | 97% |
| Norma MRP | <<locked>> | 92% | 54,302 psi | 85% | 3045 fps | 99.8% |
| Norma URP | <<locked>> | 86% | 54,433 psi | 85% | 2953 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,942 psi | 89% | 3087 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 56,913 psi | 89% | 3012 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,114 psi | 86% | 3015 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,869 psi | 59% | 1916 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,711 psi | 90% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,927 psi | 88% | 2992 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,128 psi | 85% | 3018 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,563 psi | 86% | 3123 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,313 psi | 77% | 2992 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 82% | 55,999 psi | 88% | 2917 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,389 psi | 85% | 2940 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 92% | 55,724 psi | 87% | 3002 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 84% | 54,723 psi | 86% | 2913 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,884 psi | 89% | 2940 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,071 psi | 86% | 2936 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,609 psi | 90% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,941 psi | 88% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,144 psi | 88% | 2890 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,274 psi | 87% | 2995 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 55,782 psi | 87% | 2913 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,941 psi | 88% | 2930 fps | 97.8% |
| Somchem S365 | <<locked>> | 88% | 54,752 psi | 86% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,347 psi | 88% | 2976 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 56,971 psi | 89% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,246 psi | 88% | 2946 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,811 psi | 87% | 2953 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 86% | 55,216 psi | 87% | 2949 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,346 psi | 85% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,128 psi | 85% | 3035 fps | 97.8% |
| Vihtavuori N565 | <<locked>> | 98% | 53,795 psi | 84% | 3012 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,593 psi | 87% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,172 psi | 85% | 2969 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,174 psi | 90% | 3136 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,202 psi | 88% | 2969 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% | 33,997 psi | 53% | 2530 fps | 96.6% |
| Accurate 4350 | <<locked>> | 80% | 45,571 psi | 71% | 2799 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 42,395 psi | 66% | 2822 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 88% | 46,195 psi | 72% | 2887 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 53,563 psi | 84% | 2877 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,029 psi | 60% | 2661 fps | 95% |
| ADI AR 2213 | <<locked>> | 88% | 44,512 psi | 70% | 2835 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 96% | 42,670 psi | 67% | 2789 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 92% | 33,591 psi | 53% | 2618 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,714 psi | 69% | 2805 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,401 psi | 79% | 2927 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,014 psi | 60% | 2657 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,914 psi | 61% | 2717 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,605 psi | 51% | 2559 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,429 psi | 48% | 2520 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,679 psi | 56% | 2697 fps | 98.5% |
| Bofors RP15 | <<locked>> | 86% | 38,595 psi | 60% | 2707 fps | 95.3% |
| Bofors RP30 | <<locked>> | 94% | 41,452 psi | 65% | 2802 fps | 95.6% |
| Bofors RP5 | <<locked>> | 84% | 38,914 psi | 61% | 2717 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 48,283 psi | 76% | 2802 fps | 98.8% |
| Hodgdon H1000 | <<locked>> | 92% | 40,944 psi | 64% | 2756 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 47,326 psi | 74% | 2851 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 49,647 psi | 78% | 2861 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 86% | 44,454 psi | 70% | 2782 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 88% | 46,702 psi | 73% | 2825 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,249 psi | 65% | 2687 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 38,551 psi | 60% | 2789 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 46,833 psi | 73% | 2871 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 43% | 1673 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,801 psi | 69% | 2730 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,661 psi | 78% | 2828 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 43,366 psi | 68% | 2743 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 86% | 45,963 psi | 72% | 2776 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 88% | 42,641 psi | 67% | 2805 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 47,210 psi | 74% | 2779 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 45,643 psi | 72% | 2766 fps | 98.8% |
| Lovex S071 | <<locked>> | 82% | 31,299 psi | 49% | 2461 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 43,671 psi | 68% | 2762 fps | 96.7% |
| Norma 217 | <<locked>> | 98% | 36,622 psi | 57% | 2730 fps | 96.1% |
| Norma MRP | 62 gr | 80% | 35,418 psi | 56% | 2661 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 44,802 psi | 70% | 2785 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 42,482 psi | 67% | 2818 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 43,497 psi | 68% | 2776 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 86% | 35,317 psi | 55% | 2625 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,369 psi | 44% | 1713 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,548 psi | 84% | 2972 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,411 psi | 71% | 2815 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,729 psi | 69% | 2831 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 35,302 psi | 55% | 2697 fps | 95.9% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 45,716 psi | 72% | 2920 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 52,634 psi | 82% | 2867 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,989 psi | 66% | 2700 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 80% | 37,405 psi | 59% | 2644 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 48,283 psi | 76% | 2802 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,210 psi | 74% | 2779 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 45,643 psi | 72% | 2766 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,824 psi | 84% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,620 psi | 82% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,137 psi | 72% | 2723 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,115 psi | 58% | 2638 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 52,301 psi | 82% | 2861 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,701 psi | 72% | 2749 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 41,742 psi | 65% | 2740 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,869 psi | 59% | 2625 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 80% | 50,212 psi | 79% | 2782 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,108 psi | 72% | 2779 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 37,579 psi | 59% | 2612 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 45,542 psi | 71% | 2782 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 36,535 psi | 57% | 2638 fps | 99.1% |
| Vihtavuori N560 | 66.6 gr | 86% | 43,859 psi | 69% | 2841 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 92% | 44,034 psi | 69% | 2828 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,150 psi | 71% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,326 psi | 74% | 2851 fps | 99% |
| Winchester StaBALL HD | 61.3 gr | 80% | 28,935 psi | 45% | 2566 fps | 99.2% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,784 psi | 62% | 2667 fps | 95.8% |
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 75 powders for 7 mm Weath. Mag. loaded with the .284 | 150gr | Nosler SP SolBase. Winchester StaBALL HD delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,136 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 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 1:12.0 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 | 150gr | Nosler SP SolBase 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.