Load Specifications
Load data in caliber 7 mm WSM with .284 | 140gr | Remington PSP bullet and 85 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 Alliant Reloder-26.
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% | 56,275 psi | 88% | 2979 fps | 99.1% |
| Accurate 3100 | <<locked>> | 98% | 55,637 psi | 87% | 3031 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 56,057 psi | 88% | 2963 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 57,595 psi | 90% | 3084 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,186 psi | 85% | 3117 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 84% | 55,811 psi | 87% | 2995 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,520 psi | 85% | 3068 fps | 98.3% |
| ADI AR 2213 | <<locked>> | 98% | 56,043 psi | 88% | 3127 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,638 psi | 61% | 2818 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,971 psi | 89% | 3022 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,942 psi | 89% | 3041 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,462 psi | 85% | 3084 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,724 psi | 87% | 3100 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 57,682 psi | 90% | 3117 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,506 psi | 87% | 3120 fps | 98.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,202 psi | 88% | 3100 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,733 psi | 76% | 3038 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 56,782 psi | 89% | 3196 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,389 psi | 85% | 3100 fps | 98.4% |
| Bofors RP3 | <<locked>> | 82% | 54,128 psi | 85% | 2982 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 55,506 psi | 87% | 3120 fps | 98.6% |
| Bofors RP7 | <<locked>> | 88% | 56,985 psi | 89% | 3025 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,022 psi | 75% | 2966 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 82% | 54,505 psi | 85% | 3002 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,753 psi | 87% | 3077 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 86% | 55,114 psi | 86% | 3031 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 96% | 56,115 psi | 88% | 3064 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,071 psi | 86% | 3048 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,984 psi | 86% | 3005 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,572 psi | 75% | 3077 fps | 98% |
| Hodgdon Superformance | <<locked>> | 88% | 56,072 psi | 88% | 3114 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,608 psi | 57% | 1906 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,187 psi | 86% | 2979 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 57,609 psi | 90% | 3015 fps | 99.6% |
| IMR 4350 | <<locked>> | 90% | 54,694 psi | 86% | 3005 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,013 psi | 86% | 2995 fps | 99.3% |
| IMR 4831 | <<locked>> | 90% | 54,288 psi | 85% | 3018 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,261 psi | 90% | 3051 fps | 97.3% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,188 psi | 90% | 3159 fps | 97.9% |
| Lovex S062 | <<locked>> | 82% | 55,463 psi | 87% | 2969 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,405 psi | 87% | 2995 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 56,927 psi | 89% | 3041 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,559 psi | 78% | 2933 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 56,260 psi | 88% | 3025 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,492 psi | 87% | 3058 fps | 98.3% |
| Norma MRP | <<locked>> | 96% | 55,274 psi | 87% | 3150 fps | 99.5% |
| Norma URP | <<locked>> | 90% | 55,985 psi | 88% | 3064 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,305 psi | 90% | 3054 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,925 psi | 85% | 3114 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 90% | 54,694 psi | 86% | 3061 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,243 psi | 82% | 3048 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,420 psi | 59% | 1952 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,128 psi | 85% | 2979 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,042 psi | 86% | 3091 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,450 psi | 90% | 3104 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,738 psi | 87% | 3133 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,877 psi | 75% | 3071 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 82% | 57,290 psi | 90% | 2982 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 54,476 psi | 85% | 2979 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,246 psi | 88% | 3041 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 96% | 57,087 psi | 89% | 3104 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 88% | 56,985 psi | 89% | 3025 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,405 psi | 87% | 2995 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 55,463 psi | 87% | 2969 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,927 psi | 89% | 3041 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,072 psi | 88% | 3041 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,926 psi | 86% | 2858 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,955 psi | 86% | 2946 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,608 psi | 89% | 3097 fps | 98.7% |
| Somchem S355 | <<locked>> | 86% | 57,725 psi | 90% | 3028 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,172 psi | 85% | 2969 fps | 96.4% |
| Somchem S365 | <<locked>> | 92% | 55,724 psi | 87% | 3064 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,012 psi | 85% | 3018 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 86% | 55,579 psi | 87% | 2949 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,447 psi | 85% | 3005 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,000 psi | 89% | 3048 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 82% | 56,333 psi | 88% | 2949 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,203 psi | 90% | 3061 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,100 psi | 86% | 3074 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,288 psi | 87% | 3136 fps | 97% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,995 psi | 80% | 3041 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 57,682 psi | 90% | 3015 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,753 psi | 87% | 3077 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,431 psi | 82% | 3176 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,128 psi | 85% | 3012 fps | 98.2% |
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% | 52,895 psi | 83% | 2920 fps | 98.6% |
| Accurate 3100 | <<locked>> | 84% | 34,563 psi | 54% | 2618 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 52,808 psi | 83% | 2913 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,814 psi | 64% | 2782 fps | 99% |
| Accurate MAGPRO | <<locked>> | 94% | 50,415 psi | 79% | 3051 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 49,197 psi | 77% | 2887 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 41,901 psi | 66% | 2822 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 94% | 48,834 psi | 77% | 2992 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 98% | 36,274 psi | 57% | 2753 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,198 psi | 79% | 2913 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,461 psi | 84% | 2986 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,291 psi | 62% | 2789 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,092 psi | 71% | 2923 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 41,655 psi | 65% | 2812 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 90% | 42,395 psi | 66% | 2871 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,109 psi | 46% | 2533 fps | 97.2% |
| Alliant Reloder-25 | <<locked>> | 88% | 32,967 psi | 52% | 2661 fps | 95.6% |
| Alliant Reloder-26 | 60.8 gr | 80% | 31,212 psi | 49% | 2648 fps | 95.6% |
| Bofors RP15 | <<locked>> | 92% | 41,829 psi | 66% | 2858 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 50,720 psi | 79% | 2927 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 42,395 psi | 66% | 2871 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 44,208 psi | 69% | 2795 fps | 97.1% |
| Hodgdon H1000 | <<locked>> | 98% | 44,904 psi | 70% | 2904 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 50,894 psi | 80% | 2940 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 42,685 psi | 67% | 2831 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 80% | 45,368 psi | 71% | 2851 fps | 96.7% |
| Hodgdon H4831 | <<locked>> | 92% | 48,892 psi | 77% | 2940 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,271 psi | 80% | 2982 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,854 psi | 58% | 2674 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 96% | 41,800 psi | 66% | 2940 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 41,553 psi | 65% | 2841 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,485 psi | 43% | 1706 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,750 psi | 81% | 2920 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,896 psi | 84% | 2956 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 39,900 psi | 63% | 2720 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,643 psi | 72% | 2825 fps | 97.9% |
| IMR 4831 | <<locked>> | 80% | 39,001 psi | 61% | 2730 fps | 98.7% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,500 psi | 74% | 2874 fps | 95% |
| IMR 7828 SSC | <<locked>> | 94% | 46,775 psi | 73% | 2966 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 52,286 psi | 82% | 2920 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,323 psi | 68% | 2776 fps | 98.5% |
| Lovex S070 | <<locked>> | 80% | 41,582 psi | 65% | 2756 fps | 97.2% |
| Lovex S071 | <<locked>> | 88% | 33,721 psi | 53% | 2598 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 52,794 psi | 83% | 2972 fps | 100% |
| Norma 204 | <<locked>> | 82% | 42,293 psi | 66% | 2808 fps | 95.2% |
| Norma MRP | 63.5 gr | 86% | 38,798 psi | 61% | 2818 fps | 96% |
| Norma URP | <<locked>> | 80% | 40,350 psi | 63% | 2772 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 80% | 53,548 psi | 84% | 2999 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 46,731 psi | 73% | 2976 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 39,117 psi | 61% | 2759 fps | 97.1% |
| Ramshot Magnum | <<locked>> | 92% | 38,841 psi | 61% | 2779 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,905 psi | 44% | 1745 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,850 psi | 80% | 2923 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,877 psi | 75% | 2976 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,625 psi | 64% | 2802 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,160 psi | 61% | 2808 fps | 98.3% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 38,754 psi | 61% | 2858 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 54,041 psi | 85% | 2933 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,848 psi | 75% | 2871 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 46,369 psi | 73% | 2864 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 86% | 40,973 psi | 64% | 2799 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 44,208 psi | 69% | 2795 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,323 psi | 68% | 2776 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 52,286 psi | 82% | 2920 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,582 psi | 65% | 2756 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,936 psi | 77% | 2927 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,501 psi | 76% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,279 psi | 66% | 2717 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,596 psi | 64% | 2795 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 47,964 psi | 75% | 2867 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 50,705 psi | 79% | 2910 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 36,970 psi | 58% | 2730 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 38,957 psi | 61% | 2723 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 45,832 psi | 72% | 2792 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,727 psi | 65% | 2772 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 41,060 psi | 64% | 2759 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 52,707 psi | 83% | 2894 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,147 psi | 64% | 2772 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 32,401 psi | 51% | 2615 fps | 97.3% |
| Vihtavuori N560 | 67.9 gr | 92% | 48,051 psi | 75% | 3002 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 98% | 47,485 psi | 74% | 2976 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,799 psi | 64% | 2736 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 42,685 psi | 67% | 2831 fps | 97.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,701 psi | 40% | 2503 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,915 psi | 64% | 2762 fps | 95% |
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 91 powders for 7 mm WSM loaded with the .284 | 140gr | Remington PSP. Alliant Reloder-26 delivers the highest muzzle velocity at 3,196 fps; across all powders the maximum-charge window runs from 1,906 fps to 3,196 fps. ADI AR 2217 gives the best case fill at 100 %, and 91 of the 91 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 140.0 gr projectile in 0.284" calls for a 1:15.0 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for 7 mm WSM with the .284 | 140gr | Remington PSP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Norma 217 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.