Load Specifications
Load data in caliber 7 mm WSM with .284 | 160gr | Winchester Silvertip bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, 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>> | 94% | 54,708 psi | 86% | 2844 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,985 psi | 88% | 2874 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,058 psi | 89% | 2995 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 82% | 57,029 psi | 89% | 2835 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,739 psi | 89% | 2933 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 54,447 psi | 85% | 2936 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,936 psi | 77% | 2835 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,497 psi | 68% | 2792 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,840 psi | 89% | 2930 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,143 psi | 85% | 2890 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,333 psi | 88% | 2923 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,476 psi | 85% | 2933 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,579 psi | 87% | 2907 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,056 psi | 86% | 2966 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,246 psi | 88% | 2999 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,347 psi | 88% | 2897 fps | 96.3% |
| Bofors RP15 | <<locked>> | 98% | 57,246 psi | 90% | 2976 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,894 psi | 80% | 2904 fps | 98.5% |
| Bofors RP5 | <<locked>> | 94% | 54,476 psi | 85% | 2933 fps | 99.4% |
| Bofors RP7 | <<locked>> | 84% | 54,839 psi | 86% | 2825 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,780 psi | 84% | 2920 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 86% | 57,667 psi | 90% | 2930 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 56,826 psi | 89% | 2890 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 54,433 psi | 85% | 2874 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,058 psi | 89% | 2917 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,232 psi | 90% | 2854 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,795 psi | 84% | 3035 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 54,360 psi | 85% | 2910 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,014 psi | 58% | 1795 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,420 psi | 88% | 2864 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,275 psi | 88% | 2848 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 56,289 psi | 88% | 2867 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,521 psi | 87% | 2858 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 96% | 56,072 psi | 88% | 2972 fps | 98.9% |
| Lovex S065 | <<locked>> | 86% | 56,942 psi | 89% | 2844 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,216 psi | 87% | 2844 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,738 psi | 87% | 2861 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,537 psi | 90% | 2920 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 39,218 psi | 61% | 2720 fps | 97.7% |
| Norma MRP | <<locked>> | 92% | 54,273 psi | 85% | 2956 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 54,592 psi | 86% | 2861 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,971 psi | 89% | 2995 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 88% | 56,985 psi | 89% | 2920 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,216 psi | 87% | 2930 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,927 psi | 59% | 1837 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,653 psi | 90% | 2930 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,941 psi | 88% | 2900 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,288 psi | 85% | 2930 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,476 psi | 85% | 3031 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,298 psi | 77% | 2910 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 82% | 56,318 psi | 88% | 2825 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,534 psi | 85% | 2848 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 92% | 55,854 psi | 88% | 2910 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 84% | 54,839 psi | 86% | 2825 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,942 psi | 89% | 2844 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,216 psi | 87% | 2844 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,725 psi | 90% | 2884 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,130 psi | 88% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,333 psi | 88% | 2802 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,419 psi | 87% | 2907 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 55,782 psi | 87% | 2815 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,883 psi | 88% | 2841 fps | 98.2% |
| Somchem S365 | <<locked>> | 88% | 54,853 psi | 86% | 2864 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,347 psi | 88% | 2884 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 57,130 psi | 90% | 2789 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,188 psi | 88% | 2851 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,811 psi | 87% | 2864 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 55,535 psi | 87% | 2858 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,404 psi | 85% | 2881 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,157 psi | 85% | 2949 fps | 98.2% |
| Vihtavuori N565 | <<locked>> | 98% | 53,925 psi | 85% | 2927 fps | 98.4% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,589 psi | 79% | 2920 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,825 psi | 87% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,143 psi | 85% | 2877 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,464 psi | 90% | 3045 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,246 psi | 88% | 2881 fps | 99.4% |
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% | 34,156 psi | 54% | 2461 fps | 97.2% |
| Accurate 4350 | <<locked>> | 80% | 45,774 psi | 72% | 2713 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 46,238 psi | 72% | 2805 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 53,563 psi | 84% | 2782 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,174 psi | 60% | 2585 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 86% | 41,626 psi | 65% | 2690 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 94% | 40,059 psi | 63% | 2651 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 92% | 33,591 psi | 53% | 2549 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,772 psi | 69% | 2717 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,676 psi | 79% | 2838 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,189 psi | 60% | 2579 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,318 psi | 57% | 2575 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,808 psi | 51% | 2490 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,572 psi | 45% | 2392 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,665 psi | 56% | 2621 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,968 psi | 83% | 2838 fps | 95.5% |
| Bofors RP15 | <<locked>> | 84% | 36,216 psi | 57% | 2572 fps | 95% |
| Bofors RP30 | <<locked>> | 92% | 38,841 psi | 61% | 2667 fps | 95.4% |
| Bofors RP5 | <<locked>> | 82% | 36,318 psi | 57% | 2575 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 48,341 psi | 76% | 2713 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 90% | 38,348 psi | 60% | 2615 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 47,427 psi | 74% | 2762 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 49,893 psi | 78% | 2776 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 86% | 44,483 psi | 70% | 2697 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,671 psi | 68% | 2680 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,249 psi | 65% | 2602 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,187 psi | 57% | 2651 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 46,760 psi | 73% | 2782 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,847 psi | 44% | 1608 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,932 psi | 69% | 2648 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,734 psi | 78% | 2740 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 43,497 psi | 68% | 2657 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,294 psi | 68% | 2638 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 86% | 40,016 psi | 63% | 2667 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,471 psi | 74% | 2694 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 45,774 psi | 72% | 2684 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 29,399 psi | 46% | 2336 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 43,801 psi | 69% | 2680 fps | 97.3% |
| Norma 217 | <<locked>> | 96% | 34,316 psi | 54% | 2595 fps | 95.8% |
| Norma MRP | 59.1 gr | 80% | 35,592 psi | 56% | 2589 fps | 96.5% |
| Norma URP | <<locked>> | 80% | 44,904 psi | 70% | 2700 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,784 psi | 62% | 2674 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 43,627 psi | 68% | 2694 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 86% | 35,404 psi | 55% | 2552 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,340 psi | 44% | 1640 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,882 psi | 84% | 2877 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,658 psi | 72% | 2733 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,845 psi | 69% | 2749 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,054 psi | 52% | 2562 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 45,774 psi | 72% | 2844 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 52,794 psi | 83% | 2776 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,552 psi | 62% | 2566 fps | 95% |
| Rottweil R 905 | <<locked>> | 80% | 37,565 psi | 59% | 2566 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 48,341 psi | 76% | 2713 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,471 psi | 74% | 2694 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 45,774 psi | 72% | 2684 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,983 psi | 85% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,678 psi | 83% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,296 psi | 73% | 2638 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,246 psi | 58% | 2562 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 52,605 psi | 82% | 2769 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 42,960 psi | 67% | 2612 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 41,901 psi | 66% | 2657 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,043 psi | 60% | 2549 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 80% | 50,314 psi | 79% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,296 psi | 73% | 2697 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,230 psi | 55% | 2480 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 45,614 psi | 71% | 2697 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,796 psi | 58% | 2562 fps | 99.5% |
| Vihtavuori N560 | 63.5 gr | 86% | 44,077 psi | 69% | 2762 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 90% | 41,147 psi | 64% | 2687 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 98% | 47,079 psi | 74% | 2854 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,324 psi | 71% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,427 psi | 74% | 2762 fps | 99.3% |
| Winchester StaBALL HD | 58.4 gr | 80% | 29,051 psi | 46% | 2497 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,144 psi | 58% | 2530 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 81 powders for 7 mm WSM loaded with the .284 | 160gr | Winchester Silvertip. Winchester StaBALL HD delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,795 fps to 3,045 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 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 160.0 gr projectile in 0.284" calls for a 1:16.0 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm WSM with the .284 | 160gr | Winchester Silvertip they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, 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.