Load Specifications
Load data in caliber 7 mm WSM with .284 | 160gr | Speer TBBC bullet and 81 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 3100 | <<locked>> | 98% | 57,580 psi | 90% | 2871 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,682 psi | 90% | 2782 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,579 psi | 87% | 2858 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,825 psi | 87% | 2963 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 84% | 57,145 psi | 90% | 2818 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,246 psi | 88% | 2907 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 98% | 57,740 psi | 90% | 2966 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,063 psi | 71% | 2736 fps | 96.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,798 psi | 62% | 2694 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,781 psi | 86% | 2789 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,086 psi | 88% | 2907 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,508 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,622 psi | 87% | 2894 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,261 psi | 90% | 2963 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,549 psi | 85% | 2881 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,125 psi | 79% | 2877 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,679 psi | 86% | 2969 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,159 psi | 88% | 2943 fps | 99.3% |
| Bofors RP3 | <<locked>> | 82% | 55,825 psi | 87% | 2808 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,195 psi | 72% | 2808 fps | 97.2% |
| Bofors RP5 | <<locked>> | 98% | 57,261 psi | 90% | 2963 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 54,897 psi | 86% | 2802 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,472 psi | 78% | 2825 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 82% | 55,927 psi | 88% | 2828 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,363 psi | 90% | 2910 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 56,724 psi | 89% | 2867 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 96% | 57,595 psi | 90% | 2904 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,463 psi | 88% | 2887 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,463 psi | 88% | 2828 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,081 psi | 77% | 2930 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 86% | 53,722 psi | 84% | 2887 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 58% | 1765 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,536 psi | 89% | 2799 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,304 psi | 88% | 2841 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,478 psi | 89% | 2828 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 55,825 psi | 87% | 2844 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,347 psi | 87% | 2835 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 98% | 55,042 psi | 86% | 2940 fps | 98.4% |
| Lovex S062 | <<locked>> | 82% | 57,159 psi | 90% | 2792 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,797 psi | 89% | 2825 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,766 psi | 86% | 2818 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,198 psi | 80% | 2779 fps | 99.9% |
| Norma 204 | <<locked>> | 90% | 57,087 psi | 89% | 2894 fps | 99.2% |
| Norma MRP | <<locked>> | 96% | 57,014 psi | 89% | 2986 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 57,450 psi | 90% | 2887 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,825 psi | 87% | 2963 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 90% | 56,318 psi | 88% | 2897 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,780 psi | 84% | 2894 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,550 psi | 59% | 1804 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,680 psi | 87% | 2815 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,927 psi | 89% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,245 psi | 87% | 2877 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,638 psi | 90% | 2966 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,487 psi | 78% | 2930 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 84% | 55,927 psi | 88% | 2805 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,273 psi | 85% | 2825 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 55,201 psi | 87% | 2884 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 54,897 psi | 86% | 2802 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,797 psi | 89% | 2825 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,159 psi | 90% | 2792 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,766 psi | 86% | 2818 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,435 psi | 90% | 2861 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,217 psi | 88% | 2680 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,289 psi | 88% | 2779 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,752 psi | 86% | 2881 fps | 99.2% |
| Somchem S355 | <<locked>> | 84% | 55,709 psi | 87% | 2799 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,796 psi | 87% | 2815 fps | 97.7% |
| Somchem S365 | <<locked>> | 92% | 57,696 psi | 90% | 2890 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,680 psi | 87% | 2858 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 86% | 56,927 psi | 89% | 2772 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,970 psi | 88% | 2831 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,158 psi | 86% | 2835 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 57,667 psi | 90% | 2769 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,955 psi | 86% | 2835 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,826 psi | 89% | 2904 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,014 psi | 89% | 2979 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,678 psi | 83% | 2894 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,419 psi | 87% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,363 psi | 90% | 2910 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,839 psi | 86% | 3012 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,666 psi | 87% | 2854 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% | 31,314 psi | 49% | 2382 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 54,418 psi | 85% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 42,250 psi | 66% | 2638 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 90% | 45,179 psi | 71% | 2772 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 50,691 psi | 79% | 2720 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,855 psi | 59% | 2562 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 43,976 psi | 69% | 2720 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 98% | 42,206 psi | 66% | 2677 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 94% | 33,011 psi | 52% | 2513 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,474 psi | 81% | 2740 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,567 psi | 64% | 2641 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,630 psi | 73% | 2762 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 37,753 psi | 59% | 2559 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,305 psi | 60% | 2612 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,182 psi | 47% | 2411 fps | 98.8% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,950 psi | 47% | 2421 fps | 95.6% |
| Alliant Reloder-26 | 56.7 gr | 80% | 32,561 psi | 51% | 2536 fps | 97.7% |
| Bofors RP15 | <<locked>> | 88% | 37,826 psi | 59% | 2602 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 52,344 psi | 82% | 2759 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 40,234 psi | 63% | 2687 fps | 95.4% |
| Bofors RP5 | <<locked>> | 86% | 38,305 psi | 60% | 2612 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 45,484 psi | 71% | 2641 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 40,379 psi | 63% | 2641 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 52,257 psi | 82% | 2772 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,048 psi | 69% | 2684 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 46,775 psi | 73% | 2700 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 44,092 psi | 69% | 2674 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,137 psi | 72% | 2710 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,319 psi | 60% | 2533 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,811 psi | 59% | 2677 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 43,018 psi | 67% | 2700 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,659 psi | 43% | 1578 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,330 psi | 84% | 2753 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,031 psi | 64% | 2572 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,949 psi | 74% | 2671 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 40,480 psi | 63% | 2589 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,963 psi | 72% | 2671 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 90% | 42,119 psi | 66% | 2697 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 53,708 psi | 84% | 2743 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,570 psi | 70% | 2621 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 42,685 psi | 67% | 2605 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 30,705 psi | 48% | 2362 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 40,698 psi | 64% | 2602 fps | 96% |
| Norma MRP | 56.4 gr | 82% | 34,954 psi | 55% | 2562 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 41,611 psi | 65% | 2625 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 42,061 psi | 66% | 2707 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 40,422 psi | 63% | 2615 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 88% | 34,780 psi | 55% | 2523 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,166 psi | 44% | 1614 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,127 psi | 82% | 2759 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,516 psi | 78% | 2808 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,047 psi | 66% | 2654 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,364 psi | 63% | 2664 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,708 psi | 54% | 2595 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 49,211 psi | 77% | 2707 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,047 psi | 66% | 2602 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 36,999 psi | 58% | 2543 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 45,484 psi | 71% | 2641 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,570 psi | 70% | 2621 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 53,708 psi | 84% | 2743 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,685 psi | 67% | 2605 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,401 psi | 79% | 2759 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,705 psi | 78% | 2592 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,482 psi | 68% | 2569 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 36,651 psi | 57% | 2536 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 49,385 psi | 77% | 2703 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,788 psi | 72% | 2648 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 38,363 psi | 60% | 2582 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,273 psi | 55% | 2474 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 47,036 psi | 74% | 2628 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,062 psi | 67% | 2621 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 37,202 psi | 58% | 2513 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 53,998 psi | 85% | 2720 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,409 psi | 66% | 2621 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 33,721 psi | 53% | 2487 fps | 98.7% |
| Vihtavuori N560 | 60.5 gr | 88% | 43,294 psi | 68% | 2733 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 94% | 42,902 psi | 67% | 2713 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,003 psi | 66% | 2585 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,048 psi | 69% | 2684 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,643 psi | 42% | 2405 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,305 psi | 62% | 2562 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 87 powders for 7 mm WSM loaded with the .284 | 160gr | Speer TBBC. Winchester StaBALL HD delivers the highest muzzle velocity at 3,012 fps; across all powders the maximum-charge window runs from 1,765 fps to 3,012 fps. ADI AR 2217 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:10.5 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm WSM with the .284 | 160gr | Speer TBBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, ReloadSwiss RS 80, Vihtavuori N170 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.