Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 150gr | Remington PSP Core-Lokt 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, IMR 7828 SSC 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 54,433 psi | 85% | 2930 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,869 psi | 88% | 2969 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 55,912 psi | 88% | 3081 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 94% | 56,869 psi | 89% | 3084 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 82% | 56,695 psi | 89% | 2927 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,434 psi | 88% | 3022 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 94% | 54,157 psi | 85% | 3018 fps | 98.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,617 psi | 76% | 2910 fps | 97.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,308 psi | 68% | 2867 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,449 psi | 88% | 3022 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,998 psi | 85% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,014 psi | 88% | 3009 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,143 psi | 85% | 3015 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,347 psi | 87% | 2992 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,621 psi | 86% | 3051 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,796 psi | 87% | 3084 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 57,043 psi | 89% | 3061 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,647 psi | 79% | 2982 fps | 98% |
| Bofors RP5 | <<locked>> | 94% | 54,143 psi | 85% | 3015 fps | 99.1% |
| Bofors RP7 | <<locked>> | 84% | 54,534 psi | 85% | 2910 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,505 psi | 84% | 3005 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 86% | 57,377 psi | 90% | 3022 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 56,536 psi | 89% | 2979 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 92% | 54,259 psi | 85% | 2963 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,724 psi | 89% | 3002 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,739 psi | 89% | 2943 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,534 psi | 84% | 3120 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 84% | 53,940 psi | 85% | 2995 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,970 psi | 58% | 1867 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,173 psi | 88% | 2953 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,956 psi | 88% | 2936 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 56,043 psi | 88% | 2956 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,259 psi | 87% | 2943 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 96% | 55,912 psi | 88% | 3061 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 56,739 psi | 89% | 2936 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,897 psi | 86% | 2930 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,434 psi | 87% | 2946 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,319 psi | 90% | 3012 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 38,914 psi | 61% | 2785 fps | 96.9% |
| Norma MRP | <<locked>> | 92% | 54,099 psi | 85% | 3041 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 57,711 psi | 90% | 3002 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,521 psi | 89% | 3081 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 56,753 psi | 89% | 3012 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,984 psi | 86% | 3015 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,811 psi | 59% | 1913 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,493 psi | 90% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,767 psi | 87% | 2989 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,969 psi | 85% | 3015 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,447 psi | 85% | 3120 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,197 psi | 77% | 2992 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 82% | 55,782 psi | 87% | 2913 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 57,653 psi | 90% | 2989 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 92% | 55,564 psi | 87% | 2999 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 84% | 54,534 psi | 85% | 2910 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,739 psi | 89% | 2936 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,897 psi | 86% | 2930 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,435 psi | 90% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,724 psi | 87% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,970 psi | 88% | 2887 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,129 psi | 86% | 2995 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 55,622 psi | 87% | 2910 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,782 psi | 87% | 2927 fps | 97.8% |
| Somchem S365 | <<locked>> | 88% | 54,563 psi | 86% | 2953 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,941 psi | 88% | 2969 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 56,782 psi | 89% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,072 psi | 88% | 2943 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,695 psi | 87% | 2949 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 86% | 55,042 psi | 86% | 2943 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 57,682 psi | 90% | 3022 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 57,711 psi | 90% | 3094 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 57,406 psi | 90% | 3071 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,463 psi | 87% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,653 psi | 90% | 3025 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,029 psi | 89% | 3133 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,086 psi | 88% | 2966 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% | 33,852 psi | 53% | 2526 fps | 96.5% |
| Accurate 4350 | <<locked>> | 80% | 45,411 psi | 71% | 2792 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 42,235 psi | 66% | 2815 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 88% | 45,832 psi | 72% | 2881 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 53,359 psi | 84% | 2874 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,913 psi | 59% | 2657 fps | 95% |
| ADI AR 2213 | <<locked>> | 88% | 44,150 psi | 69% | 2825 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 96% | 42,569 psi | 67% | 2785 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 92% | 33,475 psi | 52% | 2615 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,555 psi | 68% | 2802 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,212 psi | 79% | 2923 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,898 psi | 59% | 2654 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,754 psi | 61% | 2713 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,430 psi | 51% | 2556 fps | 99.1% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,298 psi | 47% | 2513 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,549 psi | 56% | 2694 fps | 98.4% |
| Bofors RP15 | <<locked>> | 86% | 38,464 psi | 60% | 2703 fps | 95.2% |
| Bofors RP30 | <<locked>> | 94% | 41,292 psi | 65% | 2799 fps | 95.5% |
| Bofors RP5 | <<locked>> | 84% | 38,754 psi | 61% | 2713 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 48,138 psi | 75% | 2799 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 40,843 psi | 64% | 2749 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 47,152 psi | 74% | 2844 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 49,690 psi | 78% | 2861 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 86% | 44,309 psi | 69% | 2776 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 88% | 46,325 psi | 73% | 2818 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,060 psi | 64% | 2684 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 38,435 psi | 60% | 2785 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 46,688 psi | 73% | 2867 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,818 psi | 44% | 1673 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,627 psi | 68% | 2726 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,487 psi | 78% | 2825 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 43,178 psi | 68% | 2736 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 86% | 45,818 psi | 72% | 2772 fps | 95.7% |
| IMR 7828 SSC | 65.4 gr | 88% | 42,482 psi | 67% | 2802 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 47,050 psi | 74% | 2772 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 45,455 psi | 71% | 2762 fps | 98.8% |
| Lovex S071 | <<locked>> | 82% | 31,154 psi | 49% | 2454 fps | 95.3% |
| Norma 204 | <<locked>> | 80% | 43,511 psi | 68% | 2759 fps | 96.7% |
| Norma 217 | <<locked>> | 98% | 36,347 psi | 57% | 2723 fps | 95.9% |
| Norma MRP | 61.8 gr | 80% | 35,288 psi | 55% | 2654 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 44,599 psi | 70% | 2782 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 42,351 psi | 66% | 2812 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 43,323 psi | 68% | 2772 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 86% | 35,201 psi | 55% | 2621 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,297 psi | 44% | 1709 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,330 psi | 84% | 2966 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,237 psi | 71% | 2812 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,555 psi | 68% | 2828 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 35,201 psi | 55% | 2697 fps | 95.9% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 45,629 psi | 72% | 2920 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 52,475 psi | 82% | 2864 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,814 psi | 66% | 2697 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 80% | 37,275 psi | 58% | 2638 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 48,138 psi | 75% | 2799 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,050 psi | 74% | 2772 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 45,455 psi | 71% | 2762 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,635 psi | 84% | 2917 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,402 psi | 82% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,992 psi | 72% | 2720 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 39,392 psi | 62% | 2690 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 52,127 psi | 82% | 2854 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,585 psi | 71% | 2746 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 41,539 psi | 65% | 2736 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,884 psi | 59% | 2625 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 80% | 50,038 psi | 78% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,963 psi | 72% | 2776 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 37,434 psi | 59% | 2608 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 45,368 psi | 71% | 2779 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 36,521 psi | 57% | 2638 fps | 99.1% |
| Vihtavuori N560 | <<locked>> | 86% | 43,714 psi | 69% | 2835 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 92% | 43,845 psi | 69% | 2822 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,991 psi | 71% | 2736 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,152 psi | 74% | 2844 fps | 99% |
| Winchester StaBALL HD | 61.1 gr | 80% | 28,805 psi | 45% | 2559 fps | 99.2% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,639 psi | 62% | 2664 fps | 95.7% |
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 | Remington PSP Core-Lokt. Winchester StaBALL HD delivers the highest muzzle velocity at 3,133 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,133 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, IMR 7828 SSC, Norma MRP rank at the top here: for 7 mm Weath. Mag. with the .284 | 150gr | Remington PSP Core-Lokt 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.