Load Specifications
Load data in caliber 7 mm WSM with .283 | 160gr | Rhino Penetrator 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% | 56,811 psi | 89% | 2789 fps | 99.5% |
| Accurate 3100 | <<locked>> | 98% | 55,985 psi | 88% | 2844 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 56,550 psi | 89% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,259 psi | 85% | 2831 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,331 psi | 85% | 2930 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 84% | 56,188 psi | 88% | 2799 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,911 psi | 86% | 2881 fps | 99% |
| ADI AR 2213 | <<locked>> | 98% | 56,260 psi | 88% | 2936 fps | 98.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,957 psi | 61% | 2664 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,056 psi | 86% | 2877 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,305 psi | 90% | 2818 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,450 psi | 90% | 2844 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,810 psi | 86% | 2884 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,260 psi | 88% | 2907 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,346 psi | 85% | 2867 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,709 psi | 87% | 2933 fps | 99.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,536 psi | 89% | 2907 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,979 psi | 77% | 2854 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,145 psi | 90% | 3002 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,592 psi | 86% | 2913 fps | 99% |
| Bofors RP3 | <<locked>> | 82% | 54,781 psi | 86% | 2789 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,802 psi | 70% | 2779 fps | 96.7% |
| Bofors RP5 | <<locked>> | 98% | 55,709 psi | 87% | 2933 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 57,334 psi | 90% | 2831 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,211 psi | 76% | 2792 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 54,737 psi | 86% | 2802 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,985 psi | 88% | 2884 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 55,593 psi | 87% | 2844 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 96% | 56,376 psi | 88% | 2877 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,230 psi | 87% | 2861 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,288 psi | 87% | 2808 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,008 psi | 75% | 2904 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 88% | 56,347 psi | 88% | 2923 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,695 psi | 57% | 1752 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,535 psi | 87% | 2779 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,998 psi | 86% | 2815 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,390 psi | 87% | 2805 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 54,665 psi | 86% | 2825 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,711 psi | 90% | 2864 fps | 98.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,624 psi | 90% | 2969 fps | 98.6% |
| Lovex S062 | <<locked>> | 82% | 56,130 psi | 88% | 2772 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,724 psi | 87% | 2802 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,188 psi | 90% | 2848 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,879 psi | 78% | 2753 fps | 99.7% |
| Norma 203B | <<locked>> | 82% | 56,739 psi | 89% | 2828 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,811 psi | 87% | 2871 fps | 99% |
| Norma MRP | <<locked>> | 96% | 55,390 psi | 87% | 2956 fps | 99.8% |
| Norma URP | <<locked>> | 90% | 56,289 psi | 88% | 2867 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,580 psi | 90% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,317 psi | 85% | 2930 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 55,027 psi | 86% | 2871 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,402 psi | 82% | 2867 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,623 psi | 59% | 1798 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,592 psi | 86% | 2792 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,564 psi | 87% | 2890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,099 psi | 85% | 2854 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,985 psi | 88% | 2936 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,022 psi | 75% | 2897 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 54,940 psi | 86% | 2785 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,521 psi | 89% | 2851 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 96% | 57,595 psi | 90% | 2913 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 88% | 57,334 psi | 90% | 2831 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,724 psi | 87% | 2802 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,130 psi | 88% | 2772 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,188 psi | 90% | 2848 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,478 psi | 89% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,230 psi | 87% | 2661 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,274 psi | 87% | 2756 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,116 psi | 90% | 2910 fps | 99.3% |
| Somchem S355 | <<locked>> | 84% | 54,737 psi | 86% | 2782 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,462 psi | 85% | 2789 fps | 97.3% |
| Somchem S365 | <<locked>> | 92% | 56,144 psi | 88% | 2867 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,433 psi | 85% | 2835 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 56,014 psi | 88% | 2756 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,824 psi | 86% | 2812 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,377 psi | 90% | 2861 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 82% | 56,536 psi | 89% | 2749 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,406 psi | 90% | 2864 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,390 psi | 87% | 2881 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,477 psi | 87% | 2946 fps | 97.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,256 psi | 80% | 2864 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,186 psi | 85% | 2772 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,260 psi | 88% | 2887 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,881 psi | 83% | 2982 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,186 psi | 85% | 2825 fps | 98.9% |
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% | 2730 fps | 99.2% |
| Accurate 3100 | <<locked>> | 80% | 30,530 psi | 48% | 2356 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 53,272 psi | 83% | 2717 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,249 psi | 65% | 2612 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 92% | 47,282 psi | 74% | 2808 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 49,748 psi | 78% | 2700 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,639 psi | 62% | 2595 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 90% | 43,105 psi | 68% | 2697 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 34,301 psi | 54% | 2546 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,885 psi | 63% | 2598 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,676 psi | 79% | 2723 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,896 psi | 84% | 2792 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,842 psi | 62% | 2621 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,411 psi | 71% | 2740 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,479 psi | 62% | 2592 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,362 psi | 59% | 2589 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,428 psi | 46% | 2388 fps | 98.4% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,327 psi | 46% | 2398 fps | 95.1% |
| Alliant Reloder-26 | 55.5 gr | 80% | 31,647 psi | 50% | 2507 fps | 97.3% |
| Bofors RP15 | <<locked>> | 90% | 39,421 psi | 62% | 2631 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,314 psi | 80% | 2740 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,843 psi | 66% | 2717 fps | 95.8% |
| Bofors RP5 | <<locked>> | 86% | 37,362 psi | 59% | 2589 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 44,802 psi | 70% | 2621 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 96% | 42,148 psi | 66% | 2674 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 51,300 psi | 80% | 2749 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,178 psi | 68% | 2661 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 80% | 45,890 psi | 72% | 2677 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 90% | 46,137 psi | 72% | 2707 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,223 psi | 71% | 2687 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,362 psi | 59% | 2510 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,999 psi | 58% | 2651 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 41,989 psi | 66% | 2674 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,528 psi | 43% | 1568 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,301 psi | 82% | 2730 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,205 psi | 63% | 2549 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,122 psi | 72% | 2648 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 39,537 psi | 62% | 2566 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,063 psi | 71% | 2648 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 92% | 44,048 psi | 69% | 2730 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 52,678 psi | 83% | 2723 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,671 psi | 68% | 2598 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 41,843 psi | 66% | 2585 fps | 98.1% |
| Lovex S071 | <<locked>> | 84% | 29,878 psi | 47% | 2339 fps | 95% |
| Norma 203B | <<locked>> | 80% | 53,229 psi | 83% | 2776 fps | 100% |
| Norma 204 | <<locked>> | 80% | 39,900 psi | 63% | 2582 fps | 95.6% |
| Norma MRP | 55.2 gr | 82% | 34,040 psi | 53% | 2536 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 40,669 psi | 64% | 2602 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 80% | 54,041 psi | 85% | 2805 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 40,930 psi | 64% | 2677 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 39,595 psi | 62% | 2595 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 36,419 psi | 57% | 2559 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,036 psi | 44% | 1604 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,271 psi | 80% | 2740 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,196 psi | 76% | 2785 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,118 psi | 64% | 2635 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,581 psi | 62% | 2644 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,881 psi | 53% | 2562 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 48,153 psi | 75% | 2684 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,845 psi | 69% | 2635 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 84% | 38,696 psi | 61% | 2575 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 44,802 psi | 70% | 2621 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,671 psi | 68% | 2598 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 52,678 psi | 83% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,843 psi | 66% | 2585 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,472 psi | 78% | 2740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,936 psi | 77% | 2575 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,641 psi | 67% | 2546 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,348 psi | 60% | 2569 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 48,385 psi | 76% | 2680 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,715 psi | 70% | 2621 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 37,347 psi | 59% | 2562 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,490 psi | 54% | 2451 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 46,093 psi | 72% | 2608 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,177 psi | 66% | 2602 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,260 psi | 57% | 2487 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 53,113 psi | 83% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,510 psi | 65% | 2602 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 32,808 psi | 51% | 2464 fps | 98.4% |
| Vihtavuori N560 | 60.6 gr | 90% | 45,237 psi | 71% | 2766 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 96% | 44,614 psi | 70% | 2743 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,075 psi | 64% | 2566 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,178 psi | 68% | 2661 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,049 psi | 41% | 2379 fps | 98% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,377 psi | 60% | 2539 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 85 powders for 7 mm WSM loaded with the .283 | 160gr | Rhino Penetrator. Alliant Reloder-26 delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,752 fps to 3,002 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 57–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.283" calls for a 1:9.5 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 .283 | 160gr | Rhino Penetrator 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.