Load Specifications
Load data in caliber 7 mm WSM with .284 | 145gr | Speer Hot-Cor bullet and 84 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% | 56,536 psi | 89% | 2930 fps | 99.2% |
| Accurate 3100 | <<locked>> | 98% | 55,898 psi | 88% | 2986 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,362 psi | 88% | 2910 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 53,969 psi | 85% | 2976 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,288 psi | 85% | 3071 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 84% | 55,898 psi | 88% | 2943 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,810 psi | 86% | 3025 fps | 98.5% |
| ADI AR 2213 | <<locked>> | 98% | 56,043 psi | 88% | 3077 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,841 psi | 61% | 2782 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,087 psi | 89% | 2969 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,058 psi | 89% | 2989 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,824 psi | 86% | 3035 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,927 psi | 88% | 3054 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,172 psi | 85% | 3009 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,535 psi | 87% | 3074 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,420 psi | 88% | 3051 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,747 psi | 76% | 2989 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 56,971 psi | 89% | 3146 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,418 psi | 85% | 3054 fps | 98.6% |
| Bofors RP3 | <<locked>> | 82% | 54,563 psi | 86% | 2933 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 55,535 psi | 87% | 3074 fps | 98.8% |
| Bofors RP7 | <<locked>> | 88% | 57,246 psi | 90% | 2979 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,356 psi | 76% | 2930 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 82% | 54,694 psi | 86% | 2949 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,941 psi | 88% | 3028 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 55,448 psi | 87% | 2989 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 96% | 56,347 psi | 88% | 3022 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,984 psi | 86% | 2999 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,114 psi | 86% | 2956 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,848 psi | 75% | 3035 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 88% | 56,289 psi | 88% | 3068 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,680 psi | 57% | 1867 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,448 psi | 87% | 2930 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,824 psi | 86% | 2956 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,230 psi | 87% | 2949 fps | 99.4% |
| IMR 4831 | <<locked>> | 90% | 54,491 psi | 85% | 2969 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,667 psi | 90% | 3005 fps | 97.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,479 psi | 90% | 3114 fps | 98.1% |
| Lovex S062 | <<locked>> | 82% | 55,724 psi | 87% | 2920 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,666 psi | 87% | 2949 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 57,029 psi | 89% | 2992 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,661 psi | 78% | 2887 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 56,347 psi | 88% | 2976 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,753 psi | 87% | 3015 fps | 98.5% |
| Norma MRP | <<locked>> | 96% | 55,317 psi | 87% | 3100 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 56,159 psi | 88% | 3012 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,392 psi | 90% | 3002 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,317 psi | 85% | 3071 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 90% | 54,969 psi | 86% | 3015 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,243 psi | 82% | 2999 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,521 psi | 59% | 1913 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,375 psi | 85% | 2933 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,492 psi | 87% | 3045 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,882 psi | 84% | 2999 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,869 psi | 88% | 3081 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,153 psi | 75% | 3031 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 82% | 57,580 psi | 90% | 2930 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 54,694 psi | 86% | 2933 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,246 psi | 88% | 2989 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 96% | 57,246 psi | 90% | 3054 fps | 99% |
| Rottweil R 907 | <<locked>> | 88% | 57,246 psi | 90% | 2979 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,666 psi | 87% | 2949 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 55,724 psi | 87% | 2920 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,029 psi | 89% | 2992 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,086 psi | 88% | 2989 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,187 psi | 86% | 2812 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,998 psi | 86% | 2897 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,782 psi | 89% | 3051 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 54,578 psi | 86% | 2927 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,389 psi | 85% | 2923 fps | 96.7% |
| Somchem S365 | <<locked>> | 92% | 55,985 psi | 88% | 3015 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,114 psi | 85% | 2969 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 86% | 55,840 psi | 88% | 2900 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,563 psi | 86% | 2953 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,319 psi | 90% | 3005 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 82% | 56,507 psi | 89% | 2897 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,203 psi | 90% | 3012 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,172 psi | 86% | 3025 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,361 psi | 87% | 3087 fps | 97.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,126 psi | 80% | 2995 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,969 psi | 85% | 2913 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,941 psi | 88% | 3028 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,011 psi | 83% | 3133 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,085 psi | 85% | 2963 fps | 98.4% |
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 2700 | <<locked>> | 80% | 53,055 psi | 83% | 2874 fps | 98.8% |
| Accurate 3100 | <<locked>> | 82% | 32,401 psi | 51% | 2523 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 53,069 psi | 83% | 2864 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,075 psi | 64% | 2743 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 94% | 50,502 psi | 79% | 3002 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 49,385 psi | 77% | 2838 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,105 psi | 66% | 2782 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 92% | 45,977 psi | 72% | 2890 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 98% | 36,448 psi | 57% | 2720 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,430 psi | 79% | 2867 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,751 psi | 84% | 2940 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,494 psi | 62% | 2749 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,295 psi | 71% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 41,872 psi | 66% | 2772 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,798 psi | 62% | 2769 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,269 psi | 46% | 2500 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,111 psi | 49% | 2566 fps | 95% |
| Alliant Reloder-26 | 59.5 gr | 80% | 31,415 psi | 49% | 2615 fps | 96.2% |
| Bofors RP15 | <<locked>> | 92% | 41,989 psi | 66% | 2815 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,082 psi | 80% | 2881 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 39,798 psi | 62% | 2769 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 44,411 psi | 70% | 2753 fps | 97.4% |
| Hodgdon H1000 | <<locked>> | 98% | 45,121 psi | 71% | 2864 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 51,227 psi | 80% | 2897 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 42,801 psi | 67% | 2789 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 80% | 45,658 psi | 72% | 2808 fps | 97% |
| Hodgdon H4831 | <<locked>> | 92% | 49,197 psi | 77% | 2897 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,254 psi | 76% | 2881 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,246 psi | 58% | 2638 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,276 psi | 62% | 2831 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 41,858 psi | 66% | 2802 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 43% | 1673 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,953 psi | 81% | 2871 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,118 psi | 63% | 2677 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,876 psi | 72% | 2782 fps | 98.1% |
| IMR 4831 | <<locked>> | 80% | 39,233 psi | 61% | 2687 fps | 98.9% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,616 psi | 75% | 2831 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 94% | 46,876 psi | 73% | 2920 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 52,504 psi | 82% | 2871 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,511 psi | 68% | 2733 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 41,785 psi | 65% | 2717 fps | 97.5% |
| Lovex S071 | <<locked>> | 88% | 33,881 psi | 53% | 2562 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 53,113 psi | 83% | 2927 fps | 100% |
| Norma 204 | <<locked>> | 82% | 42,496 psi | 67% | 2766 fps | 95.6% |
| Norma MRP | 60.7 gr | 84% | 36,361 psi | 57% | 2717 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 40,611 psi | 64% | 2733 fps | 99% |
| Ramshot Big Game | <<locked>> | 80% | 53,824 psi | 84% | 2949 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 43,772 psi | 69% | 2867 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 39,407 psi | 62% | 2720 fps | 97.5% |
| Ramshot Magnum | <<locked>> | 92% | 39,001 psi | 61% | 2740 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 44% | 1709 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,039 psi | 80% | 2877 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,095 psi | 75% | 2930 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,799 psi | 64% | 2759 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,392 psi | 62% | 2769 fps | 98.5% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,158 psi | 57% | 2743 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 54,215 psi | 85% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,080 psi | 75% | 2825 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 46,441 psi | 73% | 2818 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 86% | 41,176 psi | 65% | 2759 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 44,411 psi | 70% | 2753 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,511 psi | 68% | 2733 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 52,504 psi | 82% | 2871 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,785 psi | 65% | 2717 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,313 psi | 77% | 2881 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,602 psi | 76% | 2713 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,554 psi | 67% | 2674 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,799 psi | 64% | 2753 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 48,196 psi | 76% | 2825 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,732 psi | 75% | 2808 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 37,231 psi | 58% | 2690 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,651 psi | 57% | 2625 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 46,064 psi | 72% | 2749 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,018 psi | 66% | 2733 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 38,522 psi | 60% | 2661 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 53,055 psi | 83% | 2848 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,437 psi | 65% | 2733 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 32,619 psi | 51% | 2579 fps | 97.6% |
| Vihtavuori N560 | 66.4 gr | 92% | 48,182 psi | 76% | 2956 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 98% | 47,805 psi | 75% | 2936 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,017 psi | 64% | 2697 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,018 psi | 67% | 2792 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,918 psi | 41% | 2477 fps | 96.8% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,104 psi | 64% | 2723 fps | 95.4% |
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 84 powders for 7 mm WSM loaded with the .284 | 145gr | Speer Hot-Cor. Alliant Reloder-26 delivers the highest muzzle velocity at 3,146 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,146 fps. ADI AR 2225 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, 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, Alliant Reloder-26 rank at the top here: for 7 mm WSM with the .284 | 145gr | Speer Hot-Cor 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.