Load Specifications
Load data in caliber 7 mm WSM with .284 | 160gr | Sierra GameKing bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ADI AR 2213.
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>> | 96% | 54,708 psi | 86% | 2835 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,202 psi | 88% | 2867 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 56,869 psi | 89% | 2982 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 82% | 54,346 psi | 85% | 2782 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,029 psi | 89% | 2923 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 54,766 psi | 86% | 2927 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,629 psi | 72% | 2753 fps | 96.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,524 psi | 64% | 2713 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,448 psi | 87% | 2802 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,072 psi | 89% | 2923 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,520 psi | 85% | 2887 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,362 psi | 88% | 2910 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,476 psi | 85% | 2923 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,376 psi | 87% | 2897 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,126 psi | 80% | 2897 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,535 psi | 87% | 2982 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 56,739 psi | 89% | 2884 fps | 95.8% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,898 psi | 89% | 2959 fps | 99.4% |
| Bofors RP3 | <<locked>> | 82% | 56,507 psi | 89% | 2822 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,876 psi | 73% | 2825 fps | 97.4% |
| Bofors RP5 | <<locked>> | 96% | 54,476 psi | 85% | 2923 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 55,463 psi | 87% | 2815 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,357 psi | 79% | 2844 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 82% | 56,608 psi | 89% | 2841 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,462 psi | 85% | 2871 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 57,290 psi | 90% | 2881 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 94% | 54,679 psi | 86% | 2864 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,479 psi | 90% | 2907 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,377 psi | 90% | 2844 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,024 psi | 78% | 2953 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 86% | 54,505 psi | 85% | 2904 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,927 psi | 58% | 1772 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,232 psi | 90% | 2812 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,826 psi | 89% | 2854 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,043 psi | 89% | 2841 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 56,652 psi | 89% | 2861 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,028 psi | 88% | 2851 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 98% | 56,115 psi | 88% | 2959 fps | 98.6% |
| Lovex S062 | <<locked>> | 82% | 57,566 psi | 90% | 2802 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,392 psi | 90% | 2835 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,593 psi | 87% | 2835 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,982 psi | 81% | 2795 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 54,099 psi | 85% | 2854 fps | 98.9% |
| Norma 217ᴾ | <<locked>> | 100% | 35,984 psi | 56% | 2631 fps | 96.1% |
| Norma MRP | <<locked>> | 94% | 53,896 psi | 84% | 2940 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 54,810 psi | 86% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,840 psi | 89% | 2982 fps | 99% |
| Ramshot Hunter | <<locked>> | 90% | 57,145 psi | 90% | 2910 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,766 psi | 86% | 2913 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 59% | 1811 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,275 psi | 88% | 2828 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,954 psi | 85% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,144 psi | 88% | 2894 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,288 psi | 85% | 2917 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,299 psi | 79% | 2949 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 56,608 psi | 89% | 2818 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,752 psi | 86% | 2838 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 94% | 55,767 psi | 87% | 2897 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 86% | 55,463 psi | 87% | 2815 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,392 psi | 90% | 2835 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,566 psi | 90% | 2802 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,593 psi | 87% | 2835 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,592 psi | 86% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,855 psi | 89% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,782 psi | 89% | 2792 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,303 psi | 87% | 2894 fps | 99.3% |
| Somchem S355 | <<locked>> | 84% | 56,347 psi | 88% | 2812 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,405 psi | 88% | 2831 fps | 97.9% |
| Somchem S365 | <<locked>> | 90% | 54,679 psi | 86% | 2854 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,449 psi | 88% | 2874 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 54,041 psi | 85% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,608 psi | 89% | 2844 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,854 psi | 88% | 2851 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 55,782 psi | 87% | 2851 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,725 psi | 90% | 2923 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,896 psi | 84% | 2933 fps | 97.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,388 psi | 84% | 2910 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,173 psi | 88% | 2805 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,462 psi | 85% | 2871 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,043 psi | 88% | 3028 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,420 psi | 88% | 2867 fps | 99.3% |
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% | 31,836 psi | 50% | 2398 fps | 96.1% |
| Accurate 4350 | <<locked>> | 80% | 42,931 psi | 67% | 2651 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 90% | 45,905 psi | 72% | 2792 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 51,082 psi | 80% | 2730 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,348 psi | 60% | 2579 fps | 95.4% |
| ADI AR 2213 | 59.4 gr | 88% | 41,887 psi | 66% | 2680 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 98% | 42,772 psi | 67% | 2694 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 94% | 33,504 psi | 53% | 2533 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,156 psi | 82% | 2756 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,220 psi | 65% | 2657 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,355 psi | 74% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,290 psi | 60% | 2572 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,856 psi | 61% | 2628 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,545 psi | 48% | 2425 fps | 98.9% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,371 psi | 48% | 2441 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,054 psi | 52% | 2549 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 53,359 psi | 84% | 2825 fps | 95% |
| Bofors RP15 | <<locked>> | 88% | 38,537 psi | 60% | 2621 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 53,040 psi | 83% | 2772 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 41,147 psi | 64% | 2710 fps | 95.8% |
| Bofors RP5 | <<locked>> | 86% | 38,856 psi | 61% | 2628 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 46,064 psi | 72% | 2657 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 40,944 psi | 64% | 2661 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 52,910 psi | 83% | 2785 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,657 psi | 70% | 2700 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 47,384 psi | 74% | 2717 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 44,585 psi | 70% | 2687 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 43,932 psi | 69% | 2674 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,754 psi | 61% | 2546 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,085 psi | 57% | 2638 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 43,816 psi | 69% | 2720 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,644 psi | 43% | 1581 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,780 psi | 84% | 2762 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,597 psi | 65% | 2589 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,311 psi | 74% | 2680 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 40,872 psi | 64% | 2598 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,656 psi | 68% | 2631 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 90% | 42,815 psi | 67% | 2717 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 54,143 psi | 85% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,947 psi | 70% | 2635 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 43,279 psi | 68% | 2621 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 31,212 psi | 49% | 2382 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 41,249 psi | 65% | 2618 fps | 96.3% |
| Norma 217 | <<locked>> | 98% | 33,750 psi | 53% | 2572 fps | 95.1% |
| Norma MRP | 55.7 gr | 80% | 33,083 psi | 52% | 2516 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 42,250 psi | 66% | 2641 fps | 99.7% |
| Ramshot Grand | <<locked>> | 90% | 42,496 psi | 67% | 2723 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 40,988 psi | 64% | 2631 fps | 98.6% |
| Ramshot Magnum | <<locked>> | 88% | 35,375 psi | 55% | 2543 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,137 psi | 44% | 1617 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,692 psi | 83% | 2772 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,212 psi | 79% | 2822 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,641 psi | 67% | 2671 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,118 psi | 64% | 2684 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,201 psi | 55% | 2615 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 49,879 psi | 78% | 2720 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,569 psi | 67% | 2618 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 37,565 psi | 59% | 2559 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 46,064 psi | 72% | 2657 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,947 psi | 70% | 2635 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 54,143 psi | 85% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,279 psi | 68% | 2621 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,039 psi | 80% | 2772 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,372 psi | 79% | 2605 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,005 psi | 69% | 2582 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,231 psi | 58% | 2552 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 49,806 psi | 78% | 2713 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,209 psi | 72% | 2661 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 39,030 psi | 61% | 2598 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,824 psi | 56% | 2490 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 47,645 psi | 75% | 2641 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,700 psi | 68% | 2638 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 35,143 psi | 55% | 2470 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 42,946 psi | 67% | 2638 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 34,171 psi | 54% | 2500 fps | 98.9% |
| Vihtavuori N560 | 61.3 gr | 88% | 44,034 psi | 69% | 2753 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 94% | 43,569 psi | 68% | 2730 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,540 psi | 67% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,657 psi | 70% | 2700 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,050 psi | 42% | 2425 fps | 98.8% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,275 psi | 58% | 2523 fps | 95.2% |
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 | Sierra GameKing. Winchester StaBALL HD delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,028 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 56–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.0 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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for 7 mm WSM with the .284 | 160gr | Sierra GameKing 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.