Load Specifications
Load data in caliber 7 mm WSM with .284 | 157gr | CutEdge MTAC bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, 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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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>> | 86% | 56,333 psi | 88% | 2799 fps | 99.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 57,203 psi | 90% | 2890 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 57,638 psi | 90% | 2812 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,506 psi | 87% | 2884 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 56,507 psi | 89% | 2986 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 54,418 psi | 85% | 2802 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,608 psi | 89% | 2936 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 54,172 psi | 85% | 2930 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 36,898 psi | 58% | 2638 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,245 psi | 87% | 2822 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,405 psi | 87% | 2844 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,478 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,983 psi | 85% | 2907 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,825 psi | 87% | 2920 fps | 99% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 57,174 psi | 90% | 2986 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 2904 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,630 psi | 73% | 2841 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,389 psi | 85% | 2992 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,301 psi | 82% | 2907 fps | 98.6% |
| Bofors RP3 | <<locked>> | 84% | 56,115 psi | 88% | 2838 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 57,174 psi | 90% | 2986 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 55,347 psi | 87% | 2831 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 84% | 56,507 psi | 89% | 2861 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,216 psi | 87% | 2904 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 90% | 55,608 psi | 87% | 2874 fps | 99.1% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 53,447 psi | 84% | 2861 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,927 psi | 89% | 2913 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,840 psi | 89% | 2861 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,418 psi | 85% | 2841 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,629 psi | 72% | 2881 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 88% | 54,085 psi | 85% | 2917 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,535 psi | 57% | 1768 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,348 psi | 90% | 2838 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,058 psi | 89% | 2808 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,753 psi | 89% | 2825 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,390 psi | 87% | 2808 fps | 99.7% |
| IMR 4350 | <<locked>> | 92% | 56,623 psi | 89% | 2871 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 57,159 psi | 90% | 2861 fps | 99.7% |
| IMR 4831 | <<locked>> | 96% | 56,884 psi | 89% | 2887 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,869 psi | 89% | 2871 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,825 psi | 87% | 2861 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 98% | 55,724 psi | 87% | 2969 fps | 98.2% |
| Lovex S062 | <<locked>> | 84% | 57,406 psi | 90% | 2822 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,203 psi | 90% | 2854 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 55,056 psi | 86% | 2848 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,398 psi | 74% | 2743 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 54,708 psi | 86% | 2831 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,766 psi | 84% | 2867 fps | 98.6% |
| Norma MRP | <<locked>> | 98% | 56,782 psi | 89% | 3005 fps | 99.8% |
| Norma URP | <<locked>> | 90% | 54,114 psi | 85% | 2864 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,521 psi | 87% | 2858 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,550 psi | 87% | 2979 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 92% | 56,739 psi | 89% | 2927 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,362 psi | 88% | 2953 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,173 psi | 58% | 1811 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,405 psi | 88% | 2848 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 57,392 psi | 90% | 2949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,347 psi | 87% | 2904 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,795 psi | 84% | 2933 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,774 psi | 72% | 2881 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 82% | 55,782 psi | 87% | 2785 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,260 psi | 88% | 2838 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,578 psi | 86% | 2848 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 96% | 55,042 psi | 86% | 2904 fps | 99% |
| Rottweil R 907 | <<locked>> | 88% | 55,347 psi | 87% | 2831 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,203 psi | 90% | 2854 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 57,406 psi | 90% | 2822 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,056 psi | 86% | 2848 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,476 psi | 85% | 2848 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 57,101 psi | 89% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,927 psi | 89% | 2808 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,578 psi | 86% | 2900 fps | 98.9% |
| Somchem S355 | <<locked>> | 86% | 56,188 psi | 88% | 2831 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,217 psi | 88% | 2841 fps | 97.5% |
| Somchem S365 | <<locked>> | 94% | 57,566 psi | 90% | 2917 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,709 psi | 87% | 2881 fps | 99.5% |
| Unknown powder | <<locked>> | 88% | 54,810 psi | 86% | 2874 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 56,304 psi | 88% | 2740 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,550 psi | 89% | 2756 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,334 psi | 90% | 2802 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,391 psi | 88% | 2861 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,143 psi | 86% | 2858 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 82% | 54,592 psi | 86% | 2753 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,230 psi | 87% | 2864 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,507 psi | 89% | 2930 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,898 psi | 89% | 2999 fps | 98% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,501 psi | 76% | 2844 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,014 psi | 88% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,216 psi | 87% | 2904 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,024 psi | 78% | 2976 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,722 psi | 84% | 2844 fps | 98.7% |
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% | 46,209 psi | 72% | 2635 fps | 98% |
| Accurate 3100 | <<locked>> | 82% | 30,560 psi | 48% | 2388 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 50,763 psi | 80% | 2717 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,001 psi | 61% | 2598 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 98% | 52,736 psi | 83% | 2927 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 48,008 psi | 75% | 2700 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 40,553 psi | 64% | 2644 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 92% | 44,164 psi | 69% | 2746 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 98% | 34,577 psi | 54% | 2575 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,718 psi | 76% | 2723 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,924 psi | 81% | 2792 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,116 psi | 60% | 2612 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,366 psi | 68% | 2733 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,321 psi | 63% | 2638 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 88% | 37,956 psi | 59% | 2628 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,746 psi | 43% | 2365 fps | 97.5% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,589 psi | 50% | 2493 fps | 96.1% |
| Alliant Reloder-26 | 55.4 gr | 80% | 29,718 psi | 47% | 2477 fps | 96% |
| Bofors RP15 | <<locked>> | 92% | 40,074 psi | 63% | 2674 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 49,066 psi | 77% | 2736 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 37,956 psi | 59% | 2628 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 43,018 psi | 67% | 2618 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 80% | 49,269 psi | 77% | 2749 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 44,802 psi | 70% | 2723 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 80% | 40,466 psi | 63% | 2595 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 96% | 46,876 psi | 73% | 2746 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,369 psi | 73% | 2736 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,476 psi | 56% | 2500 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,952 psi | 80% | 2789 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,550 psi | 59% | 2690 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 40,089 psi | 63% | 2664 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 43% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,618 psi | 79% | 2740 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,577 psi | 84% | 2759 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,282 psi | 74% | 2680 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,108 psi | 72% | 2651 fps | 98.6% |
| IMR 4350 | <<locked>> | 80% | 38,551 psi | 60% | 2543 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,469 psi | 70% | 2644 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 33,924 psi | 53% | 2470 fps | 98.1% |
| IMR 4895 | <<locked>> | 80% | 53,272 psi | 83% | 2818 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,035 psi | 72% | 2694 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 92% | 45,107 psi | 71% | 2779 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 50,647 psi | 79% | 2723 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,858 psi | 66% | 2592 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 40,118 psi | 63% | 2579 fps | 97.5% |
| Lovex S071 | <<locked>> | 88% | 31,908 psi | 50% | 2421 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 51,242 psi | 80% | 2776 fps | 100% |
| Norma 204 | <<locked>> | 82% | 40,843 psi | 64% | 2628 fps | 95.7% |
| Norma MRP | 56.4 gr | 84% | 34,476 psi | 54% | 2575 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 38,957 psi | 61% | 2595 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 80% | 52,011 psi | 82% | 2805 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 44,382 psi | 70% | 2779 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 37,724 psi | 59% | 2582 fps | 97.5% |
| Ramshot Magnum | <<locked>> | 90% | 38,203 psi | 60% | 2625 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,775 psi | 44% | 1617 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,385 psi | 77% | 2736 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,093 psi | 72% | 2782 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,015 psi | 61% | 2621 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,753 psi | 59% | 2631 fps | 98.6% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,767 psi | 58% | 2671 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 80% | 52,533 psi | 82% | 2736 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,224 psi | 72% | 2684 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 44,976 psi | 70% | 2684 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 86% | 39,436 psi | 62% | 2621 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 43,018 psi | 67% | 2618 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,858 psi | 66% | 2592 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 50,647 psi | 79% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,118 psi | 63% | 2579 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,543 psi | 75% | 2740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,253 psi | 74% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,843 psi | 64% | 2539 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,073 psi | 61% | 2615 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 46,369 psi | 73% | 2680 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 45,977 psi | 72% | 2671 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 35,302 psi | 55% | 2549 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 37,362 psi | 59% | 2546 fps | 95.9% |
| Unknown powder | <<locked>> | 80% | 41,872 psi | 66% | 2648 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 80% | 52,910 psi | 83% | 2694 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,243 psi | 83% | 2713 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,411 psi | 70% | 2612 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,263 psi | 63% | 2592 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 36,883 psi | 58% | 2530 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 51,227 psi | 80% | 2707 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,610 psi | 62% | 2592 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 30,748 psi | 48% | 2441 fps | 97.5% |
| Vihtavuori N560 | 61.8 gr | 92% | 46,224 psi | 72% | 2812 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 98% | 45,281 psi | 71% | 2785 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,291 psi | 62% | 2559 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,802 psi | 70% | 2723 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,366 psi | 38% | 2339 fps | 96.5% |
| Winchester Supreme 780 | <<locked>> | 86% | 40,205 psi | 63% | 2605 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 91 powders for 7 mm WSM loaded with the .284 | 157gr | CutEdge MTAC. Norma MRP delivers the highest muzzle velocity at 3,005 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,005 fps. Accurate 3100 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 157.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2225 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm WSM with the .284 | 157gr | CutEdge MTAC 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.