Load Specifications
Load data in caliber 7 mm WSM with .284 | 140gr | Barnes XLC BT bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 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% | 56,710 psi | 89% | 2949 fps | 98.8% |
| Accurate 3100 | <<locked>> | 98% | 56,362 psi | 88% | 3015 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 57,711 psi | 90% | 2953 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,520 psi | 85% | 3009 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 57,638 psi | 90% | 3150 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 84% | 55,883 psi | 88% | 2969 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,476 psi | 85% | 3038 fps | 98% |
| ADI AR 2213 | <<locked>> | 98% | 55,651 psi | 87% | 3087 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,174 psi | 90% | 2995 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,334 psi | 90% | 3018 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,360 psi | 85% | 3054 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,579 psi | 87% | 3077 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 57,537 psi | 90% | 3087 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,201 psi | 87% | 3094 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,941 psi | 88% | 3077 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,834 psi | 77% | 3012 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 56,362 psi | 88% | 3173 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,114 psi | 85% | 3071 fps | 98% |
| Bofors RP3 | <<locked>> | 82% | 55,114 psi | 86% | 2966 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 55,201 psi | 87% | 3094 fps | 98.3% |
| Bofors RP7 | <<locked>> | 88% | 57,261 psi | 90% | 2999 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,298 psi | 76% | 2940 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 82% | 54,998 psi | 86% | 2979 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 55,608 psi | 87% | 3048 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 86% | 55,158 psi | 86% | 3002 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 96% | 55,869 psi | 88% | 3031 fps | 96.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,824 psi | 86% | 3015 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,984 psi | 86% | 2982 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,819 psi | 75% | 3051 fps | 97.6% |
| Hodgdon Superformance | <<locked>> | 88% | 55,724 psi | 87% | 3084 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,912 psi | 58% | 1883 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,477 psi | 87% | 2953 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 57,624 psi | 90% | 2982 fps | 99.4% |
| IMR 4350 | <<locked>> | 90% | 54,708 psi | 86% | 2976 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,158 psi | 86% | 2969 fps | 99.1% |
| IMR 4831 | <<locked>> | 90% | 54,679 psi | 86% | 2995 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,130 psi | 90% | 3018 fps | 96.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 56,768 psi | 89% | 3120 fps | 97.4% |
| Lovex S062 | <<locked>> | 82% | 56,188 psi | 88% | 2949 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,869 psi | 88% | 2972 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 57,334 psi | 90% | 3018 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,488 psi | 79% | 2920 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 56,681 psi | 89% | 3005 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,419 psi | 87% | 3028 fps | 98% |
| Norma MRP | <<locked>> | 96% | 55,013 psi | 86% | 3123 fps | 99.3% |
| Norma URP | <<locked>> | 90% | 56,130 psi | 88% | 3038 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,406 psi | 90% | 3031 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 57,740 psi | 90% | 3146 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 90% | 54,723 psi | 86% | 3038 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,895 psi | 81% | 3015 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,840 psi | 59% | 1929 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,578 psi | 86% | 2959 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,955 psi | 86% | 3068 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,537 psi | 90% | 3081 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,564 psi | 87% | 3104 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,993 psi | 75% | 3045 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 84% | 55,230 psi | 87% | 2963 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,985 psi | 88% | 3005 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 96% | 57,014 psi | 89% | 3074 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 57,261 psi | 90% | 2999 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,869 psi | 88% | 2972 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 56,188 psi | 88% | 2949 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,334 psi | 90% | 3018 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,159 psi | 88% | 3018 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,230 psi | 87% | 2835 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,274 psi | 87% | 2920 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,536 psi | 89% | 3068 fps | 98.5% |
| Somchem S355 | <<locked>> | 84% | 54,926 psi | 86% | 2956 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,360 psi | 85% | 2943 fps | 96% |
| Somchem S365 | <<locked>> | 92% | 55,898 psi | 88% | 3048 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,404 psi | 85% | 2995 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 86% | 56,115 psi | 88% | 2930 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,491 psi | 85% | 2976 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 56,797 psi | 89% | 3018 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 82% | 56,710 psi | 89% | 2927 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,392 psi | 90% | 3038 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,390 psi | 87% | 3054 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,042 psi | 86% | 3107 fps | 96.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,242 psi | 80% | 3022 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 57,276 psi | 90% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,869 psi | 88% | 3051 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,517 psi | 81% | 3153 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 57,653 psi | 90% | 3038 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% | 53,287 psi | 84% | 2894 fps | 98.4% |
| Accurate 3100 | <<locked>> | 82% | 34,069 psi | 53% | 2579 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 54,447 psi | 85% | 2904 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 42,279 psi | 66% | 2785 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 96% | 53,925 psi | 85% | 3087 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 49,676 psi | 78% | 2864 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 86% | 42,511 psi | 67% | 2805 fps | 95% |
| ADI AR 2213 | <<locked>> | 94% | 48,994 psi | 77% | 2966 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,821 psi | 80% | 2897 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 54,041 psi | 85% | 2966 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,074 psi | 63% | 2782 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,426 psi | 71% | 2907 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 42,322 psi | 66% | 2802 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 90% | 42,830 psi | 67% | 2854 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,400 psi | 48% | 2546 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 88% | 34,084 psi | 53% | 2664 fps | 95.8% |
| Alliant Reloder-26 | 57.5 gr | 80% | 32,663 psi | 51% | 2667 fps | 96.1% |
| Bofors RP15 | <<locked>> | 92% | 42,279 psi | 66% | 2841 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 51,692 psi | 81% | 2913 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 42,830 psi | 67% | 2854 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 45,266 psi | 71% | 2782 fps | 97% |
| Hodgdon H1000 | <<locked>> | 98% | 45,165 psi | 71% | 2874 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 51,648 psi | 81% | 2920 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 43,395 psi | 68% | 2818 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 80% | 45,745 psi | 72% | 2828 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 94% | 52,243 psi | 82% | 2969 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,300 psi | 80% | 2953 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,840 psi | 59% | 2671 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 96% | 42,322 psi | 66% | 2920 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 42,293 psi | 66% | 2831 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,731 psi | 43% | 1683 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,286 psi | 82% | 2900 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 54,288 psi | 85% | 2927 fps | 99% |
| IMR 4350 | <<locked>> | 80% | 40,669 psi | 64% | 2707 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,108 psi | 72% | 2802 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 40,147 psi | 63% | 2726 fps | 98.7% |
| IMR 4955 Enduron | <<locked>> | 92% | 50,850 psi | 80% | 2910 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 96% | 49,966 psi | 78% | 2999 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 52,982 psi | 83% | 2900 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,295 psi | 69% | 2762 fps | 98.5% |
| Lovex S070 | <<locked>> | 80% | 42,656 psi | 67% | 2749 fps | 97.2% |
| Lovex S071 | <<locked>> | 86% | 33,475 psi | 52% | 2562 fps | 95% |
| Norma 203B | <<locked>> | 80% | 53,432 psi | 84% | 2953 fps | 100% |
| Norma 204 | <<locked>> | 82% | 42,902 psi | 67% | 2792 fps | 95% |
| Norma MRP | 58.6 gr | 84% | 37,115 psi | 58% | 2753 fps | 95% |
| Norma URP | <<locked>> | 80% | 41,220 psi | 65% | 2766 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 80% | 53,867 psi | 84% | 2976 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 46,978 psi | 74% | 2949 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 39,900 psi | 63% | 2749 fps | 97.1% |
| Ramshot Magnum | <<locked>> | 92% | 39,624 psi | 62% | 2766 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,442 psi | 45% | 1729 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,256 psi | 80% | 2900 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,022 psi | 75% | 2959 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,539 psi | 65% | 2795 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,972 psi | 63% | 2802 fps | 98.2% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 39,392 psi | 62% | 2841 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 48,965 psi | 77% | 2861 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 46,731 psi | 73% | 2838 fps | 95% |
| Rottweil R 905 | <<locked>> | 86% | 41,510 psi | 65% | 2785 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 45,266 psi | 71% | 2782 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,295 psi | 69% | 2762 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 52,982 psi | 83% | 2900 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,656 psi | 67% | 2749 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,443 psi | 77% | 2907 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,182 psi | 77% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,453 psi | 68% | 2707 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 43,990 psi | 69% | 2841 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 48,849 psi | 77% | 2854 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,126 psi | 80% | 2884 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 37,971 psi | 60% | 2730 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 40,074 psi | 63% | 2720 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 46,630 psi | 73% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,612 psi | 67% | 2762 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 41,742 psi | 65% | 2746 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 53,258 psi | 83% | 2877 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,061 psi | 66% | 2762 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 33,895 psi | 53% | 2628 fps | 97.6% |
| Vihtavuori N560 | 65.6 gr | 94% | 51,561 psi | 81% | 3045 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 98% | 47,964 psi | 75% | 2959 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,336 psi | 65% | 2723 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 43,395 psi | 68% | 2818 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,325 psi | 43% | 2536 fps | 96.9% |
| Winchester Supreme 780 | <<locked>> | 90% | 44,237 psi | 69% | 2805 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 | 140gr | Barnes XLC BT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,173 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 55–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.5 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. Norma MRP, Alliant Reloder-26, Vihtavuori N560 rank at the top here: for 7 mm WSM with the .284 | 140gr | Barnes XLC BT 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.