Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:140 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7 mm WSM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:81.1 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:9.0
Load data in caliber 7 mm WSM with .284 | 140gr | Peregrine Plainsmaster (VLR-4) bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-16 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.
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>> | 84% | 56,623 psi | 89% | 2910 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,998 psi | 86% | 2936 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,417 psi | 82% | 2972 fps | 99.4% |
| Accurate 4064 | <<locked>> | 86% | 57,145 psi | 90% | 2969 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 54,737 psi | 86% | 3028 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 56,478 psi | 89% | 3005 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 54,418 psi | 85% | 2959 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 55,956 psi | 88% | 3074 fps | 98.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,650 psi | 84% | 3061 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 57,464 psi | 90% | 3143 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 56,115 psi | 88% | 3071 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,955 psi | 86% | 2979 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,158 psi | 86% | 3002 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,753 psi | 87% | 3091 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 57,058 psi | 89% | 3117 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,317 psi | 87% | 3061 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,359 psi | 82% | 3058 fps | 97.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,429 psi | 77% | 2992 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,844 psi | 67% | 2904 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 57,203 psi | 90% | 3199 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 56,724 psi | 89% | 3025 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,964 psi | 75% | 2976 fps | 96.6% |
| Bofors RP3 | <<locked>> | 86% | 55,593 psi | 87% | 2992 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,359 psi | 82% | 3058 fps | 97.7% |
| Bofors RP7 | <<locked>> | 90% | 55,347 psi | 87% | 2982 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 86% | 56,391 psi | 88% | 3015 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 57,072 psi | 89% | 3084 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 90% | 56,956 psi | 89% | 3045 fps | 98.5% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 57,580 psi | 90% | 3068 fps | 96.6% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,405 psi | 88% | 3051 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 82% | 57,130 psi | 90% | 3012 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,854 psi | 88% | 3009 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,911 psi | 84% | 2995 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 53,461 psi | 84% | 3058 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,100 psi | 57% | 1870 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,650 psi | 86% | 2959 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 57,305 psi | 90% | 2992 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,579 psi | 89% | 2979 fps | 99.2% |
| IMR 4350 | <<locked>> | 94% | 56,260 psi | 88% | 3015 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,971 psi | 89% | 3009 fps | 99.2% |
| IMR 4831 | <<locked>> | 94% | 55,274 psi | 87% | 3022 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 56,623 psi | 89% | 3031 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,361 psi | 87% | 2999 fps | 96.3% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,097 psi | 80% | 3031 fps | 95.9% |
| Lovex D073.6 | <<locked>> | 82% | 57,058 psi | 89% | 2976 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 55,492 psi | 87% | 2927 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 57,305 psi | 90% | 2982 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,811 psi | 89% | 3002 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 54,737 psi | 86% | 2992 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,192 psi | 68% | 2808 fps | 97.9% |
| Norma 201 | <<locked>> | 82% | 55,187 psi | 86% | 2946 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,767 psi | 87% | 2940 fps | 100% |
| Norma 203B | <<locked>> | 84% | 54,447 psi | 85% | 2986 fps | 100% |
| Norma 204 | <<locked>> | 94% | 57,421 psi | 90% | 3074 fps | 98.2% |
| Norma MRPᴾ | <<locked>> | 100% | 55,680 psi | 87% | 3146 fps | 99.3% |
| Norma URP | <<locked>> | 94% | 57,188 psi | 90% | 3071 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,376 psi | 87% | 3015 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,343 psi | 80% | 3045 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 94% | 56,115 psi | 88% | 3074 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,542 psi | 71% | 2910 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,883 psi | 58% | 1916 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,304 psi | 88% | 2999 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 56,391 psi | 88% | 3077 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,739 psi | 89% | 3110 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 54,563 psi | 86% | 3051 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 57,334 psi | 90% | 3146 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,959 psi | 66% | 2920 fps | 96.7% |
| Rottweil R 902 | <<locked>> | 84% | 55,854 psi | 88% | 2946 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,709 psi | 87% | 2989 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,128 psi | 85% | 2986 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 98% | 54,389 psi | 85% | 3045 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 55,347 psi | 87% | 2982 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,811 psi | 89% | 3002 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 57,058 psi | 89% | 2976 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 57,305 psi | 90% | 2982 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,737 psi | 86% | 2992 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 57,667 psi | 90% | 3054 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,158 psi | 86% | 2976 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,028 psi | 88% | 2874 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 57,000 psi | 89% | 2874 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,884 psi | 89% | 2956 fps | 99.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 57,696 psi | 90% | 3100 fps | 98.5% |
| Somchem S335 | <<locked>> | 82% | 55,782 psi | 87% | 2871 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 57,696 psi | 90% | 2995 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,796 psi | 87% | 2989 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 56,043 psi | 88% | 2982 fps | 96.2% |
| Somchem S365 | <<locked>> | 96% | 56,362 psi | 88% | 3068 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,071 psi | 86% | 3022 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 82% | 56,565 psi | 89% | 2854 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 56,014 psi | 88% | 2900 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,492 psi | 89% | 2920 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 57,246 psi | 90% | 2963 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,854 psi | 88% | 3012 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,821 psi | 80% | 2936 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 84% | 54,679 psi | 86% | 2913 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,868 psi | 86% | 3015 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,172 psi | 86% | 3071 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 56,043 psi | 88% | 3136 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,463 psi | 87% | 2976 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 57,363 psi | 90% | 3091 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,440 psi | 70% | 3045 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,114 psi | 86% | 2979 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,405 psi | 87% | 3015 fps | 98% |
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% | 49,763 psi | 78% | 2815 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,167 psi | 75% | 2818 fps | 97.3% |
| Accurate 3100 | <<locked>> | 88% | 34,258 psi | 54% | 2612 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 47,181 psi | 74% | 2818 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,679 psi | 56% | 2664 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 80% | 52,982 psi | 83% | 2949 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,078 psi | 71% | 2795 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 45,788 psi | 72% | 2887 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 98% | 50,154 psi | 79% | 2999 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,705 psi | 78% | 3015 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 42,873 psi | 67% | 2825 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,426 psi | 71% | 2822 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,472 psi | 76% | 2890 fps | 99.9% |
| Alliant Reloder-16 | 50.9 gr | 80% | 35,114 psi | 55% | 2677 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,972 psi | 63% | 2815 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 45,455 psi | 71% | 2884 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,569 psi | 67% | 2867 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,253 psi | 43% | 2474 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,011 psi | 52% | 2654 fps | 95% |
| Alliant Reloder-26 | 59 gr | 84% | 31,241 psi | 49% | 2648 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,997 psi | 83% | 2966 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 44,875 psi | 70% | 2913 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 45,484 psi | 71% | 2828 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 42,569 psi | 67% | 2867 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 40,030 psi | 63% | 2690 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 45,861 psi | 72% | 2835 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 38,014 psi | 60% | 2720 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 82% | 43,830 psi | 69% | 2805 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 98% | 53,809 psi | 84% | 3009 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,692 psi | 83% | 2989 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 53,592 psi | 84% | 2959 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,605 psi | 51% | 2569 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,241 psi | 79% | 2940 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,697 psi | 62% | 2789 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,905 psi | 42% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,227 psi | 80% | 2907 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,398 psi | 74% | 2831 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,617 psi | 78% | 2858 fps | 98.3% |
| IMR 4350 | <<locked>> | 84% | 40,843 psi | 64% | 2726 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,698 psi | 65% | 2726 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 34,519 psi | 54% | 2618 fps | 97.1% |
| IMR 4895 | <<locked>> | 80% | 49,719 psi | 78% | 2920 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,953 psi | 81% | 2940 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 98% | 47,761 psi | 75% | 2969 fps | 95% |
| Lovex D073.6 | <<locked>> | 80% | 53,185 psi | 83% | 2920 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,083 psi | 82% | 2874 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,442 psi | 74% | 2828 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,044 psi | 61% | 2674 fps | 97.1% |
| Lovex S070 | <<locked>> | 80% | 37,115 psi | 58% | 2644 fps | 95.3% |
| Lovex S071 | <<locked>> | 94% | 35,375 psi | 55% | 2638 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 51,735 psi | 81% | 2890 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,518 psi | 82% | 2890 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,805 psi | 75% | 2877 fps | 100% |
| Norma 204 | <<locked>> | 86% | 43,497 psi | 68% | 2822 fps | 95.1% |
| Norma MRP | <<locked>> | 90% | 39,030 psi | 61% | 2818 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 35,694 psi | 56% | 2664 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 80% | 48,167 psi | 75% | 2897 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 47,616 psi | 75% | 2972 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 34,708 psi | 54% | 2644 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 98% | 42,221 psi | 66% | 2841 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,470 psi | 43% | 1713 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,079 psi | 72% | 2822 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 52,460 psi | 82% | 3012 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,525 psi | 67% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,578 psi | 56% | 2680 fps | 97.1% |
| ReloadSwiss RS 70 | 55.7 gr | 80% | 34,766 psi | 54% | 2687 fps | 96.3% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,015 psi | 61% | 2848 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 49,081 psi | 77% | 2841 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,641 psi | 67% | 2769 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 47,500 psi | 74% | 2867 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 92% | 44,353 psi | 70% | 2861 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 40,030 psi | 63% | 2690 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,044 psi | 61% | 2674 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 53,185 psi | 83% | 2920 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,442 psi | 74% | 2828 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,115 psi | 58% | 2644 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,048 psi | 69% | 2825 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,517 psi | 81% | 2920 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,736 psi | 83% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,454 psi | 70% | 2687 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,130 psi | 60% | 2612 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,932 psi | 69% | 2858 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 52,373 psi | 82% | 2822 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,882 psi | 84% | 2940 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,250 psi | 68% | 2772 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 52,315 psi | 82% | 2920 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 32,155 psi | 50% | 2615 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 39,349 psi | 62% | 2723 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 53,316 psi | 84% | 2812 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,516 psi | 78% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,647 psi | 78% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,133 psi | 64% | 2700 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,173 psi | 58% | 2664 fps | 97.7% |
| Vihtavuori N165 | <<locked>> | 94% | 41,495 psi | 65% | 2759 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 47,921 psi | 75% | 2812 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,550 psi | 57% | 2664 fps | 97.3% |
| Vihtavuori N555 | <<locked>> | 82% | 29,936 psi | 47% | 2549 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 98% | 52,431 psi | 82% | 3074 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,521 psi | 57% | 2638 fps | 99.3% |
| Winchester 760 | <<locked>> | 80% | 38,014 psi | 60% | 2720 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,556 psi | 40% | 2490 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,677 psi | 81% | 2927 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 44,730 psi | 70% | 2831 fps | 95.6% |
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 103 powders for 7 mm WSM loaded with the .284 | 140gr | Peregrine Plainsmaster (VLR-4). Alliant Reloder-26 delivers the highest muzzle velocity at 3,199 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,199 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 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 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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. ReloadSwiss RS 70, Alliant Reloder-16, Alliant Reloder-26 rank at the top here: for 7 mm WSM with the .284 | 140gr | Peregrine Plainsmaster (VLR-4) 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.