Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 161gr | SUS-TAC LRT 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, Accurate MAGPRO and Alliant Reloder-26.
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% | 56,289 psi | 88% | 2854 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,259 psi | 85% | 2838 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 53,911 psi | 84% | 2943 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 94% | 54,810 psi | 86% | 2946 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 55,608 psi | 87% | 2799 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,085 psi | 86% | 2894 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 96% | 56,217 psi | 88% | 2949 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,065 psi | 74% | 2782 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,814 psi | 66% | 2740 fps | 98.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 55,216 psi | 87% | 2887 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,826 psi | 89% | 2818 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,129 psi | 86% | 2894 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,144 psi | 88% | 2907 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,534 psi | 85% | 2881 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,028 psi | 88% | 2943 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,101 psi | 89% | 2913 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,823 psi | 83% | 2920 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 53,621 psi | 84% | 2949 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 55,187 psi | 86% | 2930 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,907 psi | 77% | 2854 fps | 98% |
| Bofors RP5 | <<locked>> | 96% | 56,028 psi | 88% | 2943 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 56,913 psi | 89% | 2838 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,808 psi | 81% | 2871 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 86% | 55,898 psi | 88% | 2887 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 55,042 psi | 86% | 2844 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 94% | 56,434 psi | 88% | 2890 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,361 psi | 87% | 2871 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,361 psi | 87% | 2815 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,619 psi | 81% | 2979 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 86% | 56,405 psi | 88% | 2930 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,057 psi | 58% | 1778 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,781 psi | 86% | 2822 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,824 psi | 86% | 2805 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 54,694 psi | 86% | 2828 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,421 psi | 90% | 2871 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 96% | 54,041 psi | 85% | 2923 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 55,405 psi | 87% | 2805 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,014 psi | 89% | 2854 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,606 psi | 84% | 2815 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,651 psi | 87% | 2874 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 37,391 psi | 59% | 2664 fps | 96.9% |
| Norma MRP | <<locked>> | 94% | 56,115 psi | 88% | 2969 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 56,304 psi | 88% | 2871 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,607 psi | 86% | 2943 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 55,100 psi | 86% | 2877 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,043 psi | 89% | 2940 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,753 psi | 59% | 1818 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,653 psi | 90% | 2844 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,738 psi | 87% | 2894 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,186 psi | 85% | 2858 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,246 psi | 88% | 2943 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,243 psi | 82% | 2979 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 47,181 psi | 74% | 2858 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 82% | 54,505 psi | 85% | 2785 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,318 psi | 88% | 2861 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 94% | 57,696 psi | 90% | 2923 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 86% | 56,913 psi | 89% | 2838 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,405 psi | 87% | 2805 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,014 psi | 89% | 2854 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,086 psi | 88% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,708 psi | 86% | 2664 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,679 psi | 86% | 2759 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,232 psi | 90% | 2920 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 54,302 psi | 85% | 2779 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,143 psi | 85% | 2795 fps | 97.7% |
| Somchem S365 | <<locked>> | 90% | 56,594 psi | 89% | 2874 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,563 psi | 86% | 2844 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 55,579 psi | 87% | 2753 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,607 psi | 86% | 2812 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,624 psi | 90% | 2874 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 57,450 psi | 90% | 2871 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,927 psi | 88% | 2890 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,999 psi | 88% | 2963 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,376 psi | 87% | 2936 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,696 psi | 90% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,188 psi | 88% | 2890 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,520 psi | 85% | 2999 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,259 psi | 85% | 2835 fps | 99.1% |
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% | 32,938 psi | 52% | 2418 fps | 96.6% |
| Accurate 4350 | <<locked>> | 80% | 44,280 psi | 69% | 2674 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 40,828 psi | 64% | 2694 fps | 95.4% |
| Accurate MAGPRO | 64.1 gr | 88% | 44,483 psi | 70% | 2759 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 52,373 psi | 82% | 2749 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,999 psi | 58% | 2543 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 88% | 43,018 psi | 67% | 2707 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 96% | 41,220 psi | 65% | 2661 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 92% | 32,387 psi | 51% | 2500 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,318 psi | 58% | 2546 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,505 psi | 84% | 2772 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,308 psi | 66% | 2674 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,950 psi | 77% | 2799 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,999 psi | 58% | 2539 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 84% | 37,478 psi | 59% | 2592 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,618 psi | 50% | 2448 fps | 99.3% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,399 psi | 46% | 2405 fps | 95.6% |
| Alliant Reloder-26 | 58.9 gr | 80% | 34,287 psi | 54% | 2575 fps | 98.5% |
| Bofors RP15 | <<locked>> | 86% | 37,173 psi | 58% | 2582 fps | 95.2% |
| Bofors RP30 | <<locked>> | 94% | 39,900 psi | 63% | 2677 fps | 95.6% |
| Bofors RP5 | <<locked>> | 84% | 37,478 psi | 59% | 2592 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 47,268 psi | 74% | 2677 fps | 98.8% |
| Hodgdon H1000 | <<locked>> | 92% | 39,552 psi | 62% | 2628 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 45,876 psi | 72% | 2720 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 48,573 psi | 76% | 2736 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 86% | 43,004 psi | 67% | 2651 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 88% | 45,136 psi | 71% | 2694 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,016 psi | 63% | 2566 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 37,304 psi | 58% | 2667 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 45,136 psi | 71% | 2740 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,789 psi | 44% | 1588 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,714 psi | 67% | 2608 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,457 psi | 76% | 2700 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 42,119 psi | 66% | 2618 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,047 psi | 66% | 2598 fps | 95% |
| IMR 7828 SSC | <<locked>> | 88% | 41,292 psi | 65% | 2680 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 46,122 psi | 72% | 2654 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 44,469 psi | 70% | 2641 fps | 98.9% |
| Lovex S071 | <<locked>> | 82% | 30,255 psi | 47% | 2349 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 42,598 psi | 67% | 2644 fps | 96.8% |
| Norma 217 | <<locked>> | 98% | 35,114 psi | 55% | 2605 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 34,258 psi | 54% | 2543 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 43,497 psi | 68% | 2661 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 41,147 psi | 64% | 2690 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 42,337 psi | 66% | 2654 fps | 99% |
| Ramshot Magnum | <<locked>> | 86% | 33,968 psi | 53% | 2503 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,282 psi | 44% | 1624 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 54,143 psi | 85% | 2795 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,967 psi | 81% | 2841 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,092 psi | 69% | 2690 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,206 psi | 66% | 2703 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,982 psi | 53% | 2575 fps | 95.8% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 43,772 psi | 69% | 2792 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 51,271 psi | 80% | 2736 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,031 psi | 64% | 2585 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 80% | 36,318 psi | 57% | 2526 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 47,268 psi | 74% | 2677 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,122 psi | 72% | 2654 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 44,469 psi | 70% | 2641 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,591 psi | 82% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,430 psi | 81% | 2618 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,121 psi | 71% | 2602 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,984 psi | 56% | 2520 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 51,126 psi | 80% | 2730 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 44,570 psi | 70% | 2628 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 40,408 psi | 63% | 2618 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,883 psi | 58% | 2510 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 80% | 48,936 psi | 77% | 2657 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,947 psi | 70% | 2657 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 36,332 psi | 57% | 2493 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 44,324 psi | 69% | 2661 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 35,404 psi | 55% | 2523 fps | 99.2% |
| Vihtavuori N560 | 61.4 gr | 86% | 42,337 psi | 66% | 2713 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 92% | 42,264 psi | 66% | 2700 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,787 psi | 69% | 2618 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,093 psi | 72% | 2723 fps | 99% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,065 psi | 44% | 2454 fps | 99.3% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,479 psi | 60% | 2546 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 78 powders for 7 mm Weath. Mag. loaded with the .284 | 161gr | SUS-TAC LRT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,778 fps to 2,999 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 161.0 gr projectile in 0.284" calls for a 1:8.0 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. Vihtavuori N560, Accurate MAGPRO, Alliant Reloder-26 rank at the top here: for 7 mm Weath. Mag. with the .284 | 161gr | SUS-TAC LRT 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.