Load Specifications
Load data in caliber 7 mm WSM with .284 | 140gr | Nosler CT FailSafe bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.
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.
A valid access license is required to use the Personalized Load Calculator.
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 2495 | <<locked>> | 82% | 57,725 psi | 90% | 2927 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 55,027 psi | 86% | 2949 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 57,580 psi | 90% | 3054 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 54,665 psi | 86% | 2936 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,637 psi | 87% | 3048 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 56,072 psi | 88% | 3143 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 54,404 psi | 85% | 2966 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,565 psi | 89% | 3094 fps | 98.5% |
| ADI AR 2213 | <<locked>> | 98% | 54,302 psi | 85% | 3087 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,740 psi | 90% | 3150 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 56,855 psi | 89% | 3091 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,463 psi | 87% | 2992 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,448 psi | 87% | 3012 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,449 psi | 88% | 3107 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,012 psi | 85% | 3074 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,072 psi | 88% | 3084 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 57,348 psi | 90% | 3146 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 3068 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,079 psi | 74% | 2999 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,389 psi | 85% | 3156 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,533 psi | 82% | 3064 fps | 97.9% |
| Bofors RP3 | <<locked>> | 84% | 56,260 psi | 88% | 3009 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 57,348 psi | 90% | 3146 fps | 98.8% |
| Bofors RP7 | <<locked>> | 88% | 55,448 psi | 87% | 2992 fps | 99% |
| Hodgdon H380 | <<locked>> | 84% | 56,710 psi | 89% | 3028 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 53,969 psi | 85% | 3041 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 88% | 57,159 psi | 90% | 3058 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 96% | 54,346 psi | 85% | 3028 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 57,058 psi | 89% | 3074 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,811 psi | 89% | 3028 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,006 psi | 72% | 3035 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 88% | 54,389 psi | 85% | 3081 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,593 psi | 57% | 1896 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,334 psi | 90% | 3002 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,347 psi | 88% | 2986 fps | 99.4% |
| IMR 4350 | <<locked>> | 92% | 56,797 psi | 89% | 3031 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 57,058 psi | 89% | 3022 fps | 99.4% |
| IMR 4831 | <<locked>> | 92% | 56,057 psi | 88% | 3038 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,898 psi | 89% | 3041 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,825 psi | 87% | 3018 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,376 psi | 87% | 3120 fps | 97.3% |
| Lovex S062 | <<locked>> | 84% | 57,551 psi | 90% | 2992 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,435 psi | 90% | 3022 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 55,448 psi | 87% | 3012 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,921 psi | 75% | 2897 fps | 99% |
| Norma 203B | <<locked>> | 82% | 54,737 psi | 86% | 2999 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,085 psi | 85% | 3028 fps | 97.9% |
| Norma MRP | <<locked>> | 98% | 57,116 psi | 90% | 3176 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 54,375 psi | 85% | 3035 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,637 psi | 87% | 3025 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,043 psi | 88% | 3140 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 56,811 psi | 89% | 3091 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,096 psi | 79% | 3005 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,188 psi | 58% | 1939 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,333 psi | 88% | 3009 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 57,363 psi | 90% | 3120 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,637 psi | 87% | 3071 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,998 psi | 85% | 3100 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,253 psi | 72% | 3031 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 56,028 psi | 88% | 2956 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,376 psi | 88% | 3002 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,607 psi | 86% | 3005 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 96% | 55,361 psi | 87% | 3071 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 55,448 psi | 87% | 2992 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,435 psi | 90% | 3022 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 57,551 psi | 90% | 2992 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,448 psi | 87% | 3012 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,433 psi | 85% | 3012 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 57,130 psi | 90% | 2884 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 57,101 psi | 89% | 2972 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,882 psi | 86% | 3064 fps | 98.4% |
| Somchem S355 | <<locked>> | 86% | 56,304 psi | 88% | 3002 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,304 psi | 88% | 2995 fps | 96.7% |
| Somchem S365 | <<locked>> | 94% | 57,566 psi | 90% | 3087 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,956 psi | 88% | 3045 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 56,623 psi | 89% | 2913 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,623 psi | 89% | 2923 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,653 psi | 90% | 2972 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,217 psi | 88% | 3025 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,245 psi | 87% | 3015 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 54,969 psi | 86% | 2923 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,506 psi | 87% | 3031 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,681 psi | 89% | 3097 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 57,217 psi | 90% | 3163 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,101 psi | 88% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,215 psi | 85% | 3045 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,082 psi | 78% | 3140 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 56,130 psi | 88% | 3035 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 2495 | <<locked>> | 80% | 54,215 psi | 85% | 2877 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,634 psi | 81% | 2890 fps | 98.3% |
| Accurate 3100 | <<locked>> | 84% | 33,359 psi | 52% | 2585 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 51,416 psi | 81% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,610 psi | 62% | 2753 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 96% | 52,083 psi | 82% | 3074 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 48,008 psi | 75% | 2858 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,395 psi | 68% | 2848 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 94% | 47,427 psi | 74% | 2959 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,954 psi | 85% | 3091 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 43,743 psi | 69% | 2851 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,921 psi | 77% | 2887 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,185 psi | 82% | 2959 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,159 psi | 60% | 2759 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,685 psi | 68% | 2894 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 43,265 psi | 68% | 2844 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 92% | 43,729 psi | 69% | 2897 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,210 psi | 44% | 2503 fps | 96.6% |
| Alliant Reloder-25 | <<locked>> | 90% | 34,040 psi | 53% | 2690 fps | 96% |
| Alliant Reloder-26 | 60.7 gr | 82% | 32,489 psi | 51% | 2684 fps | 96.2% |
| Bofors RP15 | <<locked>> | 94% | 43,105 psi | 68% | 2881 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 49,487 psi | 78% | 2900 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 43,729 psi | 69% | 2897 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 43,120 psi | 68% | 2762 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 49,719 psi | 78% | 2913 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 41,365 psi | 65% | 2799 fps | 96.8% |
| Hodgdon H4350 | <<locked>> | 80% | 44,280 psi | 69% | 2822 fps | 96.2% |
| Hodgdon H4831 | <<locked>> | 94% | 50,749 psi | 80% | 2963 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,777 psi | 78% | 2946 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,868 psi | 56% | 2648 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,292 psi | 63% | 2894 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 40,306 psi | 63% | 2808 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 43% | 1696 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,517 psi | 79% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,837 psi | 83% | 2927 fps | 99% |
| IMR 4350 | <<locked>> | 80% | 38,870 psi | 61% | 2687 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,599 psi | 70% | 2795 fps | 97.5% |
| IMR 4831 | <<locked>> | 80% | 37,855 psi | 59% | 2700 fps | 98.3% |
| IMR 4895 | <<locked>> | 80% | 53,563 psi | 84% | 2989 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,342 psi | 77% | 2904 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 96% | 48,515 psi | 76% | 2992 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 51,024 psi | 80% | 2894 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,221 psi | 66% | 2746 fps | 98.2% |
| Lovex S070 | <<locked>> | 80% | 40,480 psi | 63% | 2726 fps | 96.7% |
| Lovex S071 | <<locked>> | 90% | 34,722 psi | 54% | 2621 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 51,561 psi | 81% | 2946 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,990 psi | 69% | 2838 fps | 95.6% |
| Norma MRP | 61.8 gr | 86% | 37,478 psi | 59% | 2782 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 39,204 psi | 61% | 2746 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 80% | 52,141 psi | 82% | 2969 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 45,049 psi | 71% | 2933 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 38,043 psi | 60% | 2730 fps | 96.6% |
| Ramshot Magnum | <<locked>> | 94% | 40,306 psi | 63% | 2805 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,847 psi | 44% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,559 psi | 78% | 2894 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,398 psi | 73% | 2949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,305 psi | 62% | 2769 fps | 98.3% |
| ReloadSwiss RS 70 | 58.7 gr | 80% | 38,043 psi | 60% | 2776 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,246 psi | 58% | 2805 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 52,765 psi | 83% | 2904 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,586 psi | 73% | 2844 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 48,109 psi | 75% | 2887 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 88% | 42,366 psi | 66% | 2825 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 43,120 psi | 68% | 2762 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,221 psi | 66% | 2746 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 51,024 psi | 80% | 2894 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,480 psi | 63% | 2726 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,776 psi | 75% | 2900 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,485 psi | 74% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,307 psi | 65% | 2687 fps | 96.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,974 psi | 66% | 2818 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 46,731 psi | 73% | 2841 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,400 psi | 77% | 2877 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 35,723 psi | 56% | 2700 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 40,219 psi | 63% | 2746 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 53,229 psi | 83% | 2864 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,330 psi | 84% | 2877 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,657 psi | 70% | 2766 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,611 psi | 64% | 2746 fps | 98.7% |
| Vihtavuori N165 | <<locked>> | 90% | 39,595 psi | 62% | 2723 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 51,605 psi | 81% | 2874 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,074 psi | 63% | 2746 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 31,270 psi | 49% | 2582 fps | 96.7% |
| Vihtavuori N560 | <<locked>> | 94% | 49,734 psi | 78% | 3031 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,697 psi | 62% | 2710 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 41,582 psi | 65% | 2802 fps | 96.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,961 psi | 39% | 2467 fps | 95.2% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,525 psi | 67% | 2792 fps | 95.3% |
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 88 powders for 7 mm WSM loaded with the .284 | 140gr | Nosler CT FailSafe. Norma MRP delivers the highest muzzle velocity at 3,176 fps; across all powders the maximum-charge window runs from 1,896 fps to 3,176 fps. Accurate 3100 gives the best case fill at 100 %, and 88 of the 88 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 140.0 gr projectile in 0.284" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, 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. Alliant Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for 7 mm WSM with the .284 | 140gr | Nosler CT FailSafe 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.