Load Specifications
Load data in caliber 7 mm WSM with .284 | 150gr | Berger Classic Hybrid Hunter 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% | 56,637 psi | 89% | 2884 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 55,985 psi | 88% | 2940 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,565 psi | 89% | 2864 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,244 psi | 85% | 2933 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,549 psi | 85% | 3031 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 56,115 psi | 88% | 2897 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,984 psi | 86% | 2979 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 56,420 psi | 88% | 3035 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,972 psi | 61% | 2746 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,116 psi | 90% | 2917 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,319 psi | 90% | 2943 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,781 psi | 86% | 2986 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,260 psi | 88% | 3005 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,360 psi | 85% | 2963 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,927 psi | 88% | 3035 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,492 psi | 89% | 3005 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,849 psi | 77% | 2943 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,276 psi | 90% | 3100 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,781 psi | 86% | 3012 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 54,607 psi | 86% | 2884 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,860 psi | 70% | 2864 fps | 96.2% |
| Bofors RP5 | <<locked>> | 98% | 55,927 psi | 88% | 3035 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 57,392 psi | 90% | 2933 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,472 psi | 76% | 2890 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 82% | 54,752 psi | 86% | 2904 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,999 psi | 88% | 2982 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 55,622 psi | 87% | 2943 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 56,420 psi | 88% | 2972 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,274 psi | 87% | 2956 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,390 psi | 87% | 2910 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,008 psi | 75% | 2995 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 88% | 56,637 psi | 89% | 3025 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,709 psi | 58% | 1831 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,593 psi | 87% | 2881 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,071 psi | 86% | 2913 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,303 psi | 87% | 2900 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 54,462 psi | 85% | 2920 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,595 psi | 90% | 2959 fps | 97.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,653 psi | 90% | 3068 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 55,883 psi | 88% | 2871 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,796 psi | 87% | 2904 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,334 psi | 90% | 2946 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,893 psi | 78% | 2844 fps | 99.6% |
| Norma 203B | <<locked>> | 82% | 56,637 psi | 89% | 2930 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,883 psi | 88% | 2969 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 55,477 psi | 87% | 3054 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 56,405 psi | 88% | 2966 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,595 psi | 90% | 2956 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,534 psi | 85% | 3028 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 55,100 psi | 86% | 2969 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,605 psi | 82% | 2963 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,579 psi | 59% | 1877 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,462 psi | 85% | 2887 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,477 psi | 87% | 2992 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,983 psi | 85% | 2953 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,115 psi | 88% | 3038 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,312 psi | 76% | 2992 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 82% | 57,711 psi | 90% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 54,694 psi | 86% | 2881 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,376 psi | 88% | 2946 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 96% | 57,464 psi | 90% | 3012 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 88% | 57,392 psi | 90% | 2933 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,796 psi | 87% | 2904 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 55,883 psi | 88% | 2871 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,334 psi | 90% | 2946 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,260 psi | 88% | 2943 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,347 psi | 87% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,216 psi | 87% | 2854 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,985 psi | 89% | 3005 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 54,578 psi | 86% | 2877 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,462 psi | 85% | 2881 fps | 97% |
| Somchem S365 | <<locked>> | 92% | 56,086 psi | 88% | 2966 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,317 psi | 85% | 2927 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 86% | 55,941 psi | 88% | 2851 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,752 psi | 86% | 2910 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,464 psi | 90% | 2959 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 56,565 psi | 89% | 2848 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,566 psi | 90% | 2966 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,390 psi | 87% | 2979 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,550 psi | 87% | 3045 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,126 psi | 80% | 2953 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,186 psi | 85% | 2867 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,289 psi | 88% | 2986 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,939 psi | 83% | 3084 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,447 psi | 85% | 2923 fps | 98.6% |
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% | 53,113 psi | 83% | 2828 fps | 99% |
| Accurate 3100 | <<locked>> | 82% | 32,605 psi | 51% | 2487 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 53,185 psi | 83% | 2815 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,307 psi | 65% | 2703 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 94% | 50,633 psi | 79% | 2963 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 49,676 psi | 78% | 2795 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,639 psi | 62% | 2680 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 92% | 46,122 psi | 72% | 2848 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 98% | 36,506 psi | 57% | 2684 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,560 psi | 79% | 2822 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,925 psi | 85% | 2890 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,595 psi | 62% | 2707 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,397 psi | 71% | 2835 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,465 psi | 62% | 2677 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,827 psi | 62% | 2730 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,356 psi | 46% | 2464 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,183 psi | 49% | 2533 fps | 95.5% |
| Alliant Reloder-26 | 58.2 gr | 80% | 31,546 psi | 49% | 2582 fps | 96.6% |
| Bofors RP15 | <<locked>> | 90% | 39,494 psi | 62% | 2717 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 51,039 psi | 80% | 2831 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,843 psi | 66% | 2802 fps | 95.3% |
| Bofors RP5 | <<locked>> | 88% | 39,827 psi | 62% | 2730 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 44,744 psi | 70% | 2710 fps | 97.7% |
| Hodgdon H1000 | <<locked>> | 96% | 42,192 psi | 66% | 2759 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 51,227 psi | 80% | 2848 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,033 psi | 67% | 2749 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 45,629 psi | 72% | 2762 fps | 97.3% |
| Hodgdon H4831 | <<locked>> | 90% | 46,079 psi | 72% | 2792 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,385 psi | 76% | 2838 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,318 psi | 58% | 2598 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,465 psi | 62% | 2795 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 41,930 psi | 66% | 2762 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,383 psi | 43% | 1634 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,286 psi | 82% | 2828 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,248 psi | 63% | 2638 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,977 psi | 72% | 2740 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 39,363 psi | 62% | 2648 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,834 psi | 75% | 2792 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 44,135 psi | 69% | 2822 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 52,591 psi | 82% | 2822 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,598 psi | 68% | 2690 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 41,887 psi | 66% | 2674 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 31,923 psi | 50% | 2470 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 53,287 psi | 84% | 2877 fps | 100% |
| Norma 204 | <<locked>> | 80% | 39,798 psi | 62% | 2664 fps | 95% |
| Norma MRP | 59.3 gr | 84% | 36,347 psi | 57% | 2677 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 40,741 psi | 64% | 2690 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 80% | 53,911 psi | 84% | 2904 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 43,743 psi | 69% | 2825 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 39,436 psi | 62% | 2680 fps | 97.8% |
| Ramshot Magnum | <<locked>> | 92% | 39,001 psi | 61% | 2700 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,050 psi | 44% | 1677 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,053 psi | 80% | 2831 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,167 psi | 75% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,886 psi | 64% | 2717 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,508 psi | 62% | 2730 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,230 psi | 57% | 2710 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 54,302 psi | 85% | 2831 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,269 psi | 76% | 2782 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,772 psi | 69% | 2720 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 84% | 38,508 psi | 60% | 2657 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 44,744 psi | 70% | 2710 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,598 psi | 68% | 2690 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 52,591 psi | 82% | 2822 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,887 psi | 66% | 2674 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,356 psi | 77% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,849 psi | 77% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,699 psi | 67% | 2635 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,944 psi | 64% | 2713 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 48,298 psi | 76% | 2779 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,877 psi | 75% | 2769 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 37,376 psi | 59% | 2651 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,695 psi | 57% | 2585 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 46,180 psi | 72% | 2703 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,177 psi | 66% | 2690 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 38,725 psi | 61% | 2625 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 53,026 psi | 83% | 2799 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,437 psi | 65% | 2687 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 32,735 psi | 51% | 2543 fps | 97.9% |
| Vihtavuori N560 | 63.6 gr | 90% | 45,237 psi | 71% | 2854 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 96% | 44,788 psi | 70% | 2835 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,133 psi | 64% | 2654 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,033 psi | 67% | 2749 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,933 psi | 41% | 2444 fps | 97.3% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,104 psi | 64% | 2680 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 85 powders for 7 mm WSM loaded with the .284 | 150gr | Berger Classic Hybrid Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 3,100 fps; across all powders the maximum-charge window runs from 1,831 fps to 3,100 fps. ADI AR 2225 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.0 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 | 150gr | Berger Classic Hybrid Hunter 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.