Load Specifications
Load data in caliber 7 mm WSM with .284 | 150gr | Barnes X BT bullet and 76 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 55,492 psi | 87% | 2910 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 57,145 psi | 90% | 2949 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 56,782 psi | 89% | 3048 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 54,534 psi | 85% | 2851 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,695 psi | 89% | 2986 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 54,578 psi | 86% | 2986 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,278 psi | 65% | 2779 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,927 psi | 88% | 2881 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,913 psi | 89% | 2999 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,592 psi | 86% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,463 psi | 88% | 2979 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,433 psi | 85% | 2989 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,230 psi | 87% | 2969 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,184 psi | 80% | 2966 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,390 psi | 87% | 3058 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,739 psi | 89% | 3025 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 57,406 psi | 90% | 2904 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,253 psi | 74% | 2894 fps | 96.7% |
| Bofors RP5 | <<locked>> | 96% | 54,433 psi | 85% | 2989 fps | 98.7% |
| Bofors RP7 | <<locked>> | 86% | 55,985 psi | 88% | 2887 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,502 psi | 79% | 2904 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 82% | 57,217 psi | 90% | 2917 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,766 psi | 86% | 2940 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 86% | 57,392 psi | 90% | 2949 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 94% | 54,752 psi | 86% | 2927 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,174 psi | 90% | 2966 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,522 psi | 90% | 2920 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,154 psi | 79% | 3015 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 54,665 psi | 86% | 2972 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,086 psi | 58% | 1821 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,435 psi | 90% | 2884 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,942 psi | 89% | 2923 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,130 psi | 90% | 2910 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 56,913 psi | 89% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,941 psi | 88% | 2913 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 98% | 55,854 psi | 88% | 3018 fps | 97.9% |
| Lovex S065 | <<locked>> | 86% | 54,665 psi | 86% | 2861 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 56,260 psi | 88% | 2910 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,939 psi | 83% | 2871 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 54,302 psi | 85% | 2920 fps | 98.4% |
| Norma MRP | <<locked>> | 94% | 54,099 psi | 85% | 3015 fps | 99.5% |
| Norma URP | <<locked>> | 88% | 55,172 psi | 86% | 2930 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,550 psi | 89% | 3041 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 57,334 psi | 90% | 2982 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,752 psi | 86% | 2976 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,058 psi | 60% | 1867 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,637 psi | 89% | 2897 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,696 psi | 90% | 3005 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,637 psi | 89% | 2969 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,360 psi | 85% | 2992 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,531 psi | 79% | 3015 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 57,493 psi | 90% | 2900 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,955 psi | 86% | 2900 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 56,014 psi | 88% | 2969 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 55,985 psi | 88% | 2887 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,665 psi | 86% | 2861 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 56,260 psi | 88% | 2910 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,853 psi | 86% | 2900 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,087 psi | 89% | 2766 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,406 psi | 90% | 2864 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,550 psi | 87% | 2963 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 57,014 psi | 89% | 2890 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,536 psi | 89% | 2894 fps | 97.2% |
| Somchem S365 | <<locked>> | 90% | 55,071 psi | 86% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,710 psi | 89% | 2943 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 54,607 psi | 86% | 2812 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,826 psi | 89% | 2917 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,869 psi | 88% | 2917 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 88% | 56,289 psi | 88% | 2927 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,955 psi | 86% | 2953 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,027 psi | 85% | 3002 fps | 97.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,795 psi | 84% | 2979 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,028 psi | 88% | 2877 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,766 psi | 86% | 2940 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,332 psi | 87% | 3104 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,391 psi | 88% | 2930 fps | 98.8% |
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% | 33,707 psi | 53% | 2490 fps | 96% |
| Accurate 4350 | <<locked>> | 80% | 44,237 psi | 69% | 2736 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 92% | 49,705 psi | 78% | 2923 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 51,416 psi | 81% | 2802 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 41,568 psi | 65% | 2703 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 90% | 45,179 psi | 71% | 2808 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 36,593 psi | 57% | 2661 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,736 psi | 83% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,756 psi | 65% | 2733 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,630 psi | 75% | 2851 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 41,452 psi | 65% | 2700 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 86% | 39,711 psi | 62% | 2703 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,807 psi | 50% | 2510 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 31,676 psi | 50% | 2520 fps | 95.6% |
| Alliant Reloder-26 | 57 gr | 80% | 34,374 psi | 54% | 2638 fps | 97.7% |
| Bofors RP15 | <<locked>> | 88% | 39,421 psi | 62% | 2694 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 54,056 psi | 85% | 2854 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 41,829 psi | 66% | 2782 fps | 95.1% |
| Bofors RP5 | <<locked>> | 86% | 39,711 psi | 62% | 2703 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 46,891 psi | 73% | 2730 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 44,382 psi | 70% | 2782 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 53,635 psi | 84% | 2864 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,281 psi | 71% | 2772 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 47,776 psi | 75% | 2782 fps | 97.6% |
| Hodgdon H4831 | <<locked>> | 90% | 48,182 psi | 76% | 2812 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 47,282 psi | 74% | 2795 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,784 psi | 62% | 2625 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 39,349 psi | 62% | 2769 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 44,280 psi | 69% | 2789 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,992 psi | 44% | 1631 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,056 psi | 85% | 2835 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,250 psi | 66% | 2657 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,935 psi | 75% | 2753 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 42,119 psi | 66% | 2680 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 46,905 psi | 74% | 2753 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 92% | 46,180 psi | 72% | 2841 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 45,905 psi | 72% | 2710 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 44,338 psi | 69% | 2697 fps | 98.2% |
| Lovex S071 | <<locked>> | 82% | 31,285 psi | 49% | 2428 fps | 95% |
| Norma 204 | <<locked>> | 80% | 41,945 psi | 66% | 2690 fps | 95.6% |
| Norma MRP | 56.7 gr | 82% | 36,550 psi | 57% | 2657 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 43,062 psi | 67% | 2717 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 43,250 psi | 68% | 2789 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 41,771 psi | 65% | 2707 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 38,827 psi | 61% | 2671 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,543 psi | 45% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,229 psi | 83% | 2844 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,401 psi | 79% | 2897 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,569 psi | 68% | 2746 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,814 psi | 66% | 2759 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 36,434 psi | 57% | 2690 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 50,966 psi | 80% | 2799 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 45,847 psi | 72% | 2740 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 84% | 40,930 psi | 64% | 2687 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 46,891 psi | 73% | 2730 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,905 psi | 72% | 2710 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 44,338 psi | 69% | 2697 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,459 psi | 81% | 2848 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,807 psi | 80% | 2677 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,034 psi | 71% | 2654 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 40,553 psi | 64% | 2684 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 50,633 psi | 79% | 2792 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,920 psi | 74% | 2726 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 39,914 psi | 63% | 2680 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,086 psi | 58% | 2569 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 48,457 psi | 76% | 2717 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,411 psi | 70% | 2710 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 38,653 psi | 61% | 2598 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 43,888 psi | 69% | 2713 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 35,795 psi | 56% | 2592 fps | 98.7% |
| Vihtavuori N560 | 62.2 gr | 90% | 47,398 psi | 74% | 2877 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 94% | 44,570 psi | 70% | 2808 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,134 psi | 68% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,281 psi | 71% | 2772 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,616 psi | 45% | 2516 fps | 98.7% |
| Winchester Supreme 780 | <<locked>> | 86% | 40,828 psi | 64% | 2654 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 76 powders for 7 mm WSM loaded with the .284 | 150gr | Barnes X BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,104 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,104 fps. ADI AR 2225 gives the best case fill at 100 %, and 76 of the 76 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 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 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 | 150gr | Barnes X BT 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.