Load Specifications
Load data in caliber 7 mm WSM with .284 | 150gr | Nosler Partition bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, 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>> | 82% | 56,724 psi | 89% | 2884 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 55,767 psi | 87% | 2933 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,318 psi | 88% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 57,638 psi | 90% | 2979 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,360 psi | 85% | 3025 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 55,869 psi | 88% | 2894 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,752 psi | 86% | 2972 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 56,231 psi | 88% | 3031 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,841 psi | 61% | 2740 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,130 psi | 90% | 2917 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,058 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,795 psi | 86% | 2982 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,043 psi | 88% | 3002 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,143 psi | 85% | 2959 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,709 psi | 87% | 3028 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,260 psi | 88% | 2999 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,675 psi | 76% | 2940 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,058 psi | 89% | 3097 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,578 psi | 86% | 3009 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 54,621 psi | 86% | 2884 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,672 psi | 70% | 2861 fps | 96.2% |
| Bofors RP5 | <<locked>> | 98% | 55,709 psi | 87% | 3028 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 57,203 psi | 90% | 2927 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,298 psi | 76% | 2884 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 54,781 psi | 86% | 2900 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,782 psi | 87% | 2976 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 55,376 psi | 87% | 2936 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 56,217 psi | 88% | 2969 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,071 psi | 86% | 2949 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,158 psi | 86% | 2904 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,834 psi | 75% | 2989 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 88% | 56,405 psi | 88% | 3018 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,637 psi | 57% | 1827 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,361 psi | 87% | 2874 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,897 psi | 86% | 2910 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,376 psi | 87% | 2900 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 54,505 psi | 85% | 2920 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,450 psi | 90% | 2953 fps | 97.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,450 psi | 90% | 3064 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 55,680 psi | 87% | 2867 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,579 psi | 87% | 2897 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,087 psi | 89% | 2943 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,661 psi | 78% | 2841 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 56,405 psi | 88% | 2923 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,666 psi | 87% | 2963 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 55,259 psi | 87% | 3051 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 56,202 psi | 88% | 2963 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,624 psi | 90% | 2956 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,331 psi | 85% | 3025 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 54,868 psi | 86% | 2966 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,127 psi | 82% | 2953 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,507 psi | 59% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,520 psi | 85% | 2887 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,492 psi | 87% | 2989 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,766 psi | 84% | 2946 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,941 psi | 88% | 3031 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,906 psi | 75% | 2982 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 57,711 psi | 90% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 54,708 psi | 86% | 2881 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,449 psi | 88% | 2946 fps | 98% |
| Rottweil R 905 | <<locked>> | 96% | 57,232 psi | 90% | 3005 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 88% | 57,203 psi | 90% | 2927 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,579 psi | 87% | 2897 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 55,680 psi | 87% | 2867 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,087 psi | 89% | 2943 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,057 psi | 88% | 2936 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,114 psi | 86% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,969 psi | 86% | 2848 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,753 psi | 89% | 2999 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 54,621 psi | 86% | 2874 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,288 psi | 85% | 2877 fps | 96.9% |
| Somchem S365 | <<locked>> | 92% | 56,130 psi | 88% | 2966 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,143 psi | 85% | 2920 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 55,724 psi | 87% | 2848 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,549 psi | 85% | 2904 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,276 psi | 90% | 2953 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 82% | 56,579 psi | 89% | 2848 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,392 psi | 90% | 2963 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,143 psi | 86% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,347 psi | 87% | 3041 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,952 psi | 80% | 2949 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,983 psi | 85% | 2864 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,043 psi | 88% | 2979 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,736 psi | 83% | 3077 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,244 psi | 85% | 2917 fps | 98.6% |
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% | 52,866 psi | 83% | 2822 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 32,401 psi | 51% | 2484 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 52,939 psi | 83% | 2812 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,046 psi | 64% | 2697 fps | 99.3% |
| Accurate MAGPRO | 67.4 gr | 94% | 50,430 psi | 79% | 2956 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 49,458 psi | 78% | 2789 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,465 psi | 62% | 2677 fps | 95% |
| ADI AR 2213 | <<locked>> | 92% | 45,934 psi | 72% | 2841 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 98% | 36,361 psi | 57% | 2677 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,328 psi | 79% | 2815 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,693 psi | 84% | 2887 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,581 psi | 62% | 2707 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,150 psi | 71% | 2828 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,276 psi | 62% | 2671 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,653 psi | 62% | 2723 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,196 psi | 46% | 2457 fps | 97.8% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,024 psi | 49% | 2523 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,386 psi | 49% | 2575 fps | 96.5% |
| Bofors RP15 | <<locked>> | 90% | 39,320 psi | 62% | 2713 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 51,039 psi | 80% | 2828 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,669 psi | 65% | 2795 fps | 95.2% |
| Bofors RP5 | <<locked>> | 88% | 39,653 psi | 62% | 2723 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 44,512 psi | 70% | 2707 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 42,032 psi | 66% | 2753 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 51,242 psi | 80% | 2844 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,815 psi | 67% | 2743 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 45,658 psi | 72% | 2762 fps | 97.3% |
| Hodgdon H4831 | <<locked>> | 92% | 49,153 psi | 77% | 2851 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,211 psi | 76% | 2831 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,115 psi | 58% | 2592 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,291 psi | 62% | 2792 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 41,887 psi | 66% | 2759 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,485 psi | 43% | 1634 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,054 psi | 82% | 2822 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,074 psi | 63% | 2631 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,992 psi | 72% | 2736 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 39,175 psi | 61% | 2641 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,674 psi | 75% | 2785 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 92% | 43,990 psi | 69% | 2815 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 52,373 psi | 82% | 2815 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,395 psi | 68% | 2684 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 41,713 psi | 65% | 2667 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 31,749 psi | 50% | 2467 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 53,026 psi | 83% | 2871 fps | 100% |
| Norma 204 | <<locked>> | 80% | 39,798 psi | 62% | 2664 fps | 95% |
| Norma MRP | 59.2 gr | 84% | 36,361 psi | 57% | 2674 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 40,524 psi | 64% | 2687 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 80% | 53,679 psi | 84% | 2897 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 43,787 psi | 69% | 2825 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 39,436 psi | 62% | 2677 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 38,827 psi | 61% | 2694 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,934 psi | 44% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,053 psi | 80% | 2831 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,935 psi | 75% | 2877 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,886 psi | 64% | 2713 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,320 psi | 62% | 2723 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,114 psi | 57% | 2703 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 54,302 psi | 85% | 2831 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,993 psi | 75% | 2776 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,569 psi | 68% | 2713 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 84% | 38,522 psi | 60% | 2654 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 44,512 psi | 70% | 2707 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,395 psi | 68% | 2684 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 52,373 psi | 82% | 2815 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,713 psi | 65% | 2667 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,356 psi | 77% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,834 psi | 77% | 2667 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,482 psi | 67% | 2628 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,741 psi | 64% | 2707 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 48,066 psi | 75% | 2772 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,688 psi | 75% | 2762 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 37,188 psi | 58% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,709 psi | 58% | 2585 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 45,992 psi | 72% | 2700 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,945 psi | 66% | 2684 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 38,551 psi | 60% | 2618 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 53,040 psi | 83% | 2799 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,437 psi | 65% | 2687 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 32,532 psi | 51% | 2536 fps | 97.9% |
| Vihtavuori N560 | 63.4 gr | 90% | 45,092 psi | 71% | 2851 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 44,599 psi | 70% | 2828 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,944 psi | 64% | 2651 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,033 psi | 67% | 2746 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,947 psi | 41% | 2444 fps | 97.2% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,147 psi | 64% | 2680 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 90 powders for 7 mm WSM loaded with the .284 | 150gr | Nosler Partition. Alliant Reloder-26 delivers the highest muzzle velocity at 3,097 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,097 fps. ADI AR 2217 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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. Accurate MAGPRO, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm WSM with the .284 | 150gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Norma 217, ReloadSwiss RS 80 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.