Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 155gr | CutEdge MTH bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Ramshot Grand and Accurate MAGPRO.
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>> | 96% | 55,680 psi | 87% | 2907 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,305 psi | 90% | 2946 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 57,508 psi | 90% | 3064 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 94% | 54,447 psi | 85% | 3002 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 55,216 psi | 87% | 2858 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 54,665 psi | 86% | 2946 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 55,927 psi | 88% | 3005 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,746 psi | 73% | 2835 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,321 psi | 65% | 2785 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,463 psi | 88% | 2881 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 54,853 psi | 86% | 2953 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,898 psi | 88% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,027 psi | 85% | 2930 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,680 psi | 87% | 2999 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,826 psi | 89% | 2972 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,533 psi | 82% | 2976 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 57,508 psi | 90% | 3064 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 54,795 psi | 86% | 2982 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 57,159 psi | 90% | 2894 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 2904 fps | 97.7% |
| Bofors RP5 | <<locked>> | 96% | 55,680 psi | 87% | 2999 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 56,289 psi | 88% | 2894 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,721 psi | 81% | 2930 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 82% | 57,493 psi | 90% | 2920 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,608 psi | 87% | 2946 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 54,795 psi | 86% | 2907 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 55,927 psi | 88% | 2943 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,897 psi | 86% | 2927 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,868 psi | 86% | 2871 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,271 psi | 80% | 3035 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 86% | 55,956 psi | 88% | 2982 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,753 psi | 58% | 1824 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,578 psi | 86% | 2881 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,462 psi | 85% | 2864 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 57,682 psi | 90% | 2936 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,145 psi | 90% | 2930 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 98% | 57,508 psi | 90% | 3041 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 54,781 psi | 86% | 2861 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,434 psi | 88% | 2910 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,055 psi | 83% | 2867 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,245 psi | 87% | 2930 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 36,811 psi | 58% | 2700 fps | 96.4% |
| Norma MRP | <<locked>> | 94% | 55,637 psi | 87% | 3022 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 55,825 psi | 87% | 2930 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,389 psi | 85% | 3002 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 54,592 psi | 86% | 2930 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,652 psi | 89% | 2995 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,594 psi | 59% | 1867 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,305 psi | 90% | 2907 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,390 psi | 87% | 2953 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,450 psi | 90% | 2972 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,912 psi | 88% | 3002 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,924 psi | 81% | 3035 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 57,566 psi | 90% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,912 psi | 88% | 2917 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 94% | 57,276 psi | 90% | 2979 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 56,289 psi | 88% | 2894 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,781 psi | 86% | 2861 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,434 psi | 88% | 2910 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,535 psi | 87% | 2904 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,740 psi | 90% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,740 psi | 90% | 2871 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,855 psi | 89% | 2979 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 57,145 psi | 90% | 2884 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 57,522 psi | 90% | 2910 fps | 98.1% |
| Somchem S365 | <<locked>> | 90% | 56,144 psi | 88% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,638 psi | 90% | 2949 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 54,998 psi | 86% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,172 psi | 85% | 2871 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,145 psi | 90% | 2930 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 56,971 psi | 89% | 2930 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,434 psi | 87% | 2946 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,579 psi | 87% | 3018 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,998 psi | 86% | 2992 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,566 psi | 90% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,608 psi | 87% | 2946 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,128 psi | 85% | 3051 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,954 psi | 85% | 2890 fps | 99% |
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% | 31,952 psi | 50% | 2448 fps | 96% |
| Accurate 4350 | <<locked>> | 80% | 43,410 psi | 68% | 2717 fps | 99.8% |
| Accurate High Country | <<locked>> | 86% | 43,163 psi | 68% | 2802 fps | 95.9% |
| Accurate MAGPRO | 68.3 gr | 90% | 47,224 psi | 74% | 2871 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 51,808 psi | 81% | 2805 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,972 psi | 61% | 2644 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 88% | 42,612 psi | 67% | 2756 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 96% | 40,857 psi | 64% | 2710 fps | 95% |
| ADI AR 2225 | <<locked>> | 94% | 33,881 psi | 53% | 2592 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,982 psi | 83% | 2828 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,872 psi | 66% | 2726 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,385 psi | 76% | 2851 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,885 psi | 61% | 2641 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,927 psi | 58% | 2635 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,763 psi | 48% | 2477 fps | 98.9% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,690 psi | 48% | 2497 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,591 psi | 53% | 2608 fps | 98% |
| Bofors RP15 | <<locked>> | 88% | 39,175 psi | 61% | 2684 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 53,577 psi | 84% | 2841 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 39,233 psi | 61% | 2717 fps | 95% |
| Bofors RP5 | <<locked>> | 84% | 36,927 psi | 58% | 2635 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 46,499 psi | 73% | 2726 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 92% | 39,073 psi | 61% | 2671 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 53,693 psi | 84% | 2861 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,382 psi | 71% | 2769 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 80% | 48,037 psi | 75% | 2789 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 88% | 45,600 psi | 71% | 2762 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 88% | 44,759 psi | 70% | 2746 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,320 psi | 62% | 2612 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,680 psi | 57% | 2703 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 44,773 psi | 70% | 2789 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 43% | 1631 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,163 psi | 66% | 2657 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,051 psi | 75% | 2756 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 41,394 psi | 65% | 2664 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,237 psi | 69% | 2700 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 90% | 43,714 psi | 69% | 2792 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 45,339 psi | 71% | 2700 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 43,787 psi | 69% | 2690 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 31,328 psi | 49% | 2431 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 41,887 psi | 66% | 2687 fps | 96.4% |
| Norma 217 | <<locked>> | 98% | 34,418 psi | 54% | 2638 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 33,562 psi | 53% | 2575 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 42,902 psi | 67% | 2707 fps | 99.7% |
| Ramshot Grand | 65 gr | 88% | 40,524 psi | 64% | 2733 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 41,611 psi | 65% | 2697 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 35,984 psi | 56% | 2608 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 44% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,621 psi | 84% | 2848 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,474 psi | 81% | 2897 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,366 psi | 68% | 2736 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,771 psi | 65% | 2753 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,431 psi | 52% | 2612 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 50,517 psi | 79% | 2789 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 43,163 psi | 68% | 2687 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 82% | 38,130 psi | 60% | 2625 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 46,499 psi | 73% | 2726 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,339 psi | 71% | 2700 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 43,787 psi | 69% | 2690 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,866 psi | 81% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,981 psi | 80% | 2674 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,425 psi | 70% | 2648 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,797 psi | 59% | 2618 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 50,328 psi | 79% | 2782 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,874 psi | 69% | 2671 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 39,682 psi | 62% | 2664 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,071 psi | 57% | 2546 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 48,341 psi | 76% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,324 psi | 69% | 2707 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 35,665 psi | 56% | 2533 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 43,569 psi | 68% | 2703 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 34,592 psi | 54% | 2559 fps | 98.9% |
| Vihtavuori N560 | 65.5 gr | 88% | 44,918 psi | 70% | 2825 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 94% | 44,657 psi | 70% | 2802 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,323 psi | 68% | 2667 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,382 psi | 71% | 2769 fps | 98.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,151 psi | 43% | 2470 fps | 98.7% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,884 psi | 59% | 2589 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 78 powders for 7 mm Weath. Mag. loaded with the .284 | 155gr | CutEdge MTH. Accurate High Country delivers the highest muzzle velocity at 3,064 fps; across all powders the maximum-charge window runs from 1,824 fps to 3,064 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 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 155.0 gr projectile in 0.284" calls for a 1:9.5 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. Vihtavuori N560, Ramshot Grand, Accurate MAGPRO rank at the top here: for 7 mm Weath. Mag. with the .284 | 155gr | CutEdge MTH 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.