Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 145gr | SUS-TAC HPT bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Alliant Reloder-26 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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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% | 56,826 psi | 89% | 2940 fps | 99.2% |
| Accurate 3100 | <<locked>> | 98% | 56,347 psi | 88% | 2992 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,768 psi | 89% | 2917 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,302 psi | 85% | 2982 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 57,711 psi | 90% | 3146 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 96% | 54,752 psi | 86% | 3081 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 56,260 psi | 88% | 2953 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,027 psi | 86% | 3028 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 98% | 56,478 psi | 89% | 3087 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,972 psi | 61% | 2789 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,203 psi | 90% | 2972 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,435 psi | 90% | 2999 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,882 psi | 86% | 3038 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,260 psi | 88% | 3058 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,636 psi | 86% | 3018 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,985 psi | 88% | 3081 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,695 psi | 89% | 3058 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,182 psi | 77% | 2995 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,493 psi | 90% | 3156 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,868 psi | 86% | 3061 fps | 98.6% |
| Bofors RP3 | <<locked>> | 82% | 54,665 psi | 86% | 2940 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,107 psi | 71% | 2917 fps | 96% |
| Bofors RP5 | <<locked>> | 98% | 55,985 psi | 88% | 3081 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 57,537 psi | 90% | 2986 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,428 psi | 76% | 2933 fps | 97% |
| Hodgdon H380 | <<locked>> | 82% | 54,781 psi | 86% | 2956 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,217 psi | 88% | 3035 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 55,492 psi | 87% | 2989 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 96% | 56,536 psi | 89% | 3025 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,434 psi | 87% | 3005 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,419 psi | 87% | 2963 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,022 psi | 75% | 3041 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 88% | 56,753 psi | 89% | 3074 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 58% | 1870 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,564 psi | 87% | 2930 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,085 psi | 86% | 2966 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,521 psi | 87% | 2956 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 54,781 psi | 86% | 2976 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,288 psi | 85% | 2953 fps | 96.9% |
| IMR 7828 SSC | <<locked>> | 98% | 54,128 psi | 85% | 3058 fps | 97.5% |
| Lovex S062 | <<locked>> | 82% | 55,883 psi | 88% | 2923 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,927 psi | 88% | 2953 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 57,377 psi | 90% | 2999 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,154 psi | 79% | 2897 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 56,724 psi | 89% | 2982 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,970 psi | 88% | 3018 fps | 98.6% |
| Norma MRP | <<locked>> | 96% | 55,811 psi | 87% | 3110 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 56,463 psi | 88% | 3022 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,711 psi | 90% | 3009 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,462 psi | 85% | 3077 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 90% | 55,187 psi | 86% | 3018 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,634 psi | 82% | 3012 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,550 psi | 59% | 1916 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,650 psi | 86% | 2943 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,840 psi | 88% | 3051 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,128 psi | 85% | 3002 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,376 psi | 88% | 3094 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,472 psi | 76% | 3041 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 84% | 55,042 psi | 86% | 2940 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,478 psi | 89% | 2995 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 96% | 57,740 psi | 90% | 3064 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 88% | 57,537 psi | 90% | 2986 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,927 psi | 88% | 2953 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 55,883 psi | 88% | 2923 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,377 psi | 90% | 2999 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,420 psi | 88% | 2999 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,288 psi | 87% | 2815 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,259 psi | 87% | 2904 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,261 psi | 90% | 3061 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 54,694 psi | 86% | 2930 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,810 psi | 86% | 2936 fps | 96.8% |
| Somchem S365 | <<locked>> | 92% | 56,304 psi | 88% | 3022 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,578 psi | 86% | 2979 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 55,898 psi | 88% | 2904 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,868 psi | 86% | 2959 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,740 psi | 90% | 3012 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 82% | 56,579 psi | 89% | 2900 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,493 psi | 90% | 3015 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,709 psi | 87% | 3035 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,854 psi | 88% | 3100 fps | 97.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,561 psi | 81% | 3005 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,447 psi | 85% | 2923 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,492 psi | 89% | 3041 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,185 psi | 83% | 3133 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,534 psi | 85% | 2972 fps | 98.5% |
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% | 53,127 psi | 83% | 2877 fps | 98.8% |
| Accurate 3100 | <<locked>> | 82% | 32,663 psi | 51% | 2530 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 53,258 psi | 83% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,220 psi | 65% | 2746 fps | 99.2% |
| Accurate High Country | <<locked>> | 88% | 43,656 psi | 68% | 2884 fps | 95% |
| Accurate MAGPRO | 69.7 gr | 94% | 50,937 psi | 80% | 3012 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 49,734 psi | 78% | 2848 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,395 psi | 66% | 2789 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 92% | 46,180 psi | 72% | 2894 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 98% | 36,593 psi | 57% | 2723 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,560 psi | 79% | 2871 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,867 psi | 84% | 2943 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,813 psi | 62% | 2756 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,411 psi | 71% | 2881 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 42,148 psi | 66% | 2779 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,045 psi | 63% | 2776 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,399 psi | 46% | 2503 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,299 psi | 49% | 2572 fps | 95.1% |
| Alliant Reloder-26 | 60 gr | 80% | 31,676 psi | 50% | 2625 fps | 96.3% |
| Bofors RP15 | <<locked>> | 92% | 42,250 psi | 66% | 2825 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 51,213 psi | 80% | 2884 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,192 psi | 66% | 2851 fps | 95% |
| Bofors RP5 | <<locked>> | 88% | 40,045 psi | 63% | 2776 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 44,730 psi | 70% | 2759 fps | 97.5% |
| Hodgdon H1000 | <<locked>> | 96% | 42,337 psi | 66% | 2805 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 51,343 psi | 80% | 2900 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 43,120 psi | 68% | 2795 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 80% | 45,759 psi | 72% | 2815 fps | 97% |
| Hodgdon H4831 | <<locked>> | 92% | 49,414 psi | 77% | 2904 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,472 psi | 76% | 2887 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,376 psi | 59% | 2641 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,450 psi | 62% | 2838 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 42,119 psi | 66% | 2812 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,456 psi | 43% | 1673 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,330 psi | 82% | 2881 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,248 psi | 63% | 2684 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,963 psi | 72% | 2785 fps | 98.1% |
| IMR 4831 | <<locked>> | 80% | 39,378 psi | 62% | 2694 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,848 psi | 75% | 2838 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 94% | 47,326 psi | 74% | 2933 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 52,634 psi | 82% | 2874 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,613 psi | 68% | 2736 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 41,887 psi | 66% | 2717 fps | 97.5% |
| Lovex S071 | <<locked>> | 88% | 34,127 psi | 53% | 2569 fps | 95.9% |
| Norma 203B | <<locked>> | 80% | 53,200 psi | 83% | 2927 fps | 100% |
| Norma 204 | <<locked>> | 82% | 42,801 psi | 67% | 2772 fps | 95.7% |
| Norma MRP | <<locked>> | 84% | 36,463 psi | 57% | 2720 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 40,741 psi | 64% | 2736 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 80% | 53,896 psi | 84% | 2953 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 43,976 psi | 69% | 2874 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 39,508 psi | 62% | 2723 fps | 97.5% |
| Ramshot Magnum | <<locked>> | 92% | 39,131 psi | 61% | 2743 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 44% | 1716 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,329 psi | 80% | 2884 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,211 psi | 76% | 2933 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,118 psi | 64% | 2766 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,450 psi | 62% | 2772 fps | 98.6% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,492 psi | 57% | 2753 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 48,240 psi | 76% | 2831 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 46,688 psi | 73% | 2825 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 86% | 41,234 psi | 65% | 2762 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 44,730 psi | 70% | 2759 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,613 psi | 68% | 2736 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 52,634 psi | 82% | 2874 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,887 psi | 66% | 2717 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,429 psi | 77% | 2884 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,994 psi | 77% | 2723 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,612 psi | 67% | 2677 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,915 psi | 64% | 2756 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 48,312 psi | 76% | 2828 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,921 psi | 75% | 2815 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 37,362 psi | 59% | 2694 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,738 psi | 58% | 2628 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 46,166 psi | 72% | 2753 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,148 psi | 66% | 2736 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 38,769 psi | 61% | 2667 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 53,142 psi | 83% | 2851 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,553 psi | 65% | 2736 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 32,735 psi | 51% | 2582 fps | 97.7% |
| Vihtavuori N560 | 67 gr | 92% | 48,631 psi | 76% | 2969 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 96% | 44,875 psi | 70% | 2877 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,292 psi | 65% | 2703 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,120 psi | 68% | 2795 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,976 psi | 41% | 2480 fps | 96.8% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,321 psi | 65% | 2730 fps | 95.5% |
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 85 powders for 7 mm Weath. Mag. loaded with the .284 | 145gr | SUS-TAC HPT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,156 fps. ADI AR 2225 gives the best case fill at 100 %, and 85 of the 85 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 145.0 gr projectile in 0.284" calls for a 1:8.5 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. Vihtavuori N560, Alliant Reloder-26, Accurate MAGPRO rank at the top here: for 7 mm Weath. Mag. with the .284 | 145gr | SUS-TAC HPT 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.