Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 150gr | Rhino Solid Shank bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, IMR 7828 SSC and Norma MRP.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 54,375 psi | 85% | 2930 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,782 psi | 87% | 2966 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 56,753 psi | 89% | 3081 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 82% | 56,840 psi | 89% | 2927 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,608 psi | 89% | 3022 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 94% | 54,288 psi | 85% | 3022 fps | 98.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,704 psi | 76% | 2913 fps | 97.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,381 psi | 68% | 2867 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 56,869 psi | 89% | 3022 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,637 psi | 89% | 3025 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,925 psi | 85% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,159 psi | 88% | 3012 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,302 psi | 85% | 3018 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,506 psi | 87% | 2995 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,752 psi | 86% | 3054 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,941 psi | 88% | 3087 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 56,884 psi | 89% | 3058 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,778 psi | 80% | 2986 fps | 98% |
| Bofors RP5 | <<locked>> | 94% | 54,302 psi | 85% | 3018 fps | 99.1% |
| Bofors RP7 | <<locked>> | 84% | 54,665 psi | 86% | 2913 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,664 psi | 84% | 3005 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 86% | 57,537 psi | 90% | 3025 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 56,463 psi | 88% | 2976 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 92% | 54,404 psi | 85% | 2963 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,898 psi | 89% | 3005 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,927 psi | 89% | 2946 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,664 psi | 84% | 3120 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 84% | 54,041 psi | 85% | 2995 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,115 psi | 58% | 1870 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,101 psi | 88% | 2949 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,101 psi | 88% | 2940 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 56,188 psi | 88% | 2959 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,390 psi | 87% | 2946 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 96% | 55,753 psi | 87% | 3058 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 56,623 psi | 89% | 2936 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,824 psi | 86% | 2927 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,593 psi | 87% | 2949 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,159 psi | 90% | 3009 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 39,030 psi | 61% | 2789 fps | 97% |
| Norma MRP | <<locked>> | 92% | 54,012 psi | 85% | 3038 fps | 99.7% |
| Norma URP | <<locked>> | 86% | 54,172 psi | 85% | 2946 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,681 psi | 89% | 3084 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 56,637 psi | 89% | 3009 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,868 psi | 86% | 3012 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,956 psi | 59% | 1916 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,406 psi | 90% | 3025 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,898 psi | 88% | 2992 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,085 psi | 85% | 3018 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,317 psi | 85% | 3117 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,313 psi | 77% | 2992 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 82% | 55,956 psi | 88% | 2917 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,128 psi | 85% | 2933 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 92% | 55,448 psi | 87% | 2999 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 84% | 54,665 psi | 86% | 2913 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,623 psi | 89% | 2936 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,824 psi | 86% | 2927 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,348 psi | 90% | 2972 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,869 psi | 88% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,130 psi | 88% | 2890 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,013 psi | 86% | 2992 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 55,492 psi | 87% | 2907 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,680 psi | 87% | 2927 fps | 97.7% |
| Somchem S365 | <<locked>> | 88% | 54,447 psi | 85% | 2953 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,115 psi | 88% | 2972 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 56,913 psi | 89% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,970 psi | 88% | 2943 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,535 psi | 87% | 2949 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 86% | 55,201 psi | 87% | 2946 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,085 psi | 85% | 2969 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,867 psi | 84% | 3031 fps | 97.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 57,551 psi | 90% | 3071 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,593 psi | 87% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,911 psi | 84% | 2966 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,116 psi | 90% | 3136 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,956 psi | 88% | 2963 fps | 99.2% |
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 3100 | <<locked>> | 80% | 33,939 psi | 53% | 2530 fps | 96.5% |
| Accurate 4350 | <<locked>> | 80% | 45,527 psi | 71% | 2795 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 88% | 45,934 psi | 72% | 2884 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 53,301 psi | 84% | 2874 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,014 psi | 60% | 2661 fps | 95% |
| ADI AR 2213 | <<locked>> | 88% | 44,266 psi | 69% | 2828 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 96% | 42,685 psi | 67% | 2789 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 92% | 33,431 psi | 52% | 2612 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,334 psi | 60% | 2661 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,453 psi | 68% | 2799 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,343 psi | 79% | 2927 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,000 psi | 60% | 2654 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,696 psi | 61% | 2710 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,561 psi | 51% | 2559 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,240 psi | 47% | 2513 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,476 psi | 56% | 2690 fps | 98.4% |
| Bofors RP15 | <<locked>> | 86% | 38,377 psi | 60% | 2700 fps | 95.2% |
| Bofors RP30 | <<locked>> | 94% | 41,220 psi | 65% | 2795 fps | 95.5% |
| Bofors RP5 | <<locked>> | 84% | 38,696 psi | 61% | 2710 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 48,240 psi | 76% | 2802 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 40,756 psi | 64% | 2746 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 47,079 psi | 74% | 2844 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 49,632 psi | 78% | 2861 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 86% | 44,193 psi | 69% | 2776 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 88% | 46,456 psi | 73% | 2818 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,002 psi | 64% | 2684 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 38,363 psi | 60% | 2785 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 46,601 psi | 73% | 2867 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,789 psi | 44% | 1673 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,743 psi | 69% | 2730 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,603 psi | 78% | 2828 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 43,294 psi | 68% | 2740 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 86% | 45,934 psi | 72% | 2776 fps | 95.8% |
| IMR 7828 SSC | 65.5 gr | 88% | 42,583 psi | 67% | 2805 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 47,152 psi | 74% | 2776 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 45,382 psi | 71% | 2759 fps | 98.8% |
| Lovex S071 | <<locked>> | 82% | 31,256 psi | 49% | 2461 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 43,613 psi | 68% | 2762 fps | 96.7% |
| Norma 217 | <<locked>> | 98% | 36,434 psi | 57% | 2726 fps | 96% |
| Norma MRP | 61.9 gr | 80% | 35,360 psi | 55% | 2657 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 44,541 psi | 70% | 2779 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 42,482 psi | 67% | 2815 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 43,439 psi | 68% | 2772 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 86% | 35,317 psi | 55% | 2621 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,427 psi | 45% | 1713 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,505 psi | 84% | 2969 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,353 psi | 71% | 2812 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,497 psi | 68% | 2825 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 35,302 psi | 55% | 2697 fps | 95.9% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 45,701 psi | 72% | 2920 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 52,402 psi | 82% | 2861 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,945 psi | 66% | 2700 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 80% | 37,217 psi | 58% | 2638 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 48,240 psi | 76% | 2802 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,152 psi | 74% | 2776 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 45,382 psi | 71% | 2759 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,766 psi | 84% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,562 psi | 82% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,108 psi | 72% | 2720 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 39,523 psi | 62% | 2694 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 52,272 psi | 82% | 2858 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,701 psi | 72% | 2749 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 41,669 psi | 65% | 2740 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,826 psi | 59% | 2621 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 80% | 49,937 psi | 78% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,093 psi | 72% | 2779 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 37,362 psi | 59% | 2605 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 45,484 psi | 71% | 2782 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 36,463 psi | 57% | 2638 fps | 99.1% |
| Vihtavuori N560 | <<locked>> | 86% | 43,816 psi | 69% | 2838 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 92% | 43,772 psi | 69% | 2822 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,121 psi | 71% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,268 psi | 74% | 2848 fps | 99% |
| Winchester StaBALL HD | 61.2 gr | 80% | 28,892 psi | 45% | 2562 fps | 99.2% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,711 psi | 62% | 2664 fps | 95.8% |
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 75 powders for 7 mm Weath. Mag. loaded with the .284 | 150gr | Rhino Solid Shank. Winchester StaBALL HD delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,136 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 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 1:12.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Winchester StaBALL HD, IMR 7828 SSC, Norma MRP rank at the top here: for 7 mm Weath. Mag. with the .284 | 150gr | Rhino Solid Shank 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.