Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 140gr | Ferrobull Tripple Expand Jagd bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Accurate MAGPRO.
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% | 57,174 psi | 90% | 3005 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 56,681 psi | 89% | 3058 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 56,391 psi | 88% | 2976 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,607 psi | 86% | 3048 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 54,505 psi | 85% | 3150 fps | 97.7% |
| Accurate MAGPRO | <<locked>> | 96% | 55,477 psi | 87% | 3150 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 56,536 psi | 89% | 3018 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,753 psi | 87% | 3100 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 98% | 57,246 psi | 90% | 3159 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,291 psi | 62% | 2848 fps | 96.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,956 psi | 88% | 3094 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 57,580 psi | 90% | 3041 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 57,595 psi | 90% | 3064 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,637 psi | 87% | 3110 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,029 psi | 89% | 3130 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,230 psi | 87% | 3087 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,710 psi | 89% | 3150 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,624 psi | 90% | 3127 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,748 psi | 78% | 3061 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,201 psi | 85% | 3159 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,579 psi | 87% | 3130 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 54,839 psi | 86% | 3002 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,556 psi | 71% | 2976 fps | 96% |
| Bofors RP5 | <<locked>> | 98% | 56,710 psi | 89% | 3150 fps | 98.9% |
| Bofors RP7 | <<locked>> | 86% | 54,114 psi | 85% | 2992 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,066 psi | 77% | 3002 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 82% | 55,216 psi | 87% | 3025 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,840 psi | 89% | 3107 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 56,072 psi | 88% | 3061 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 96% | 57,392 psi | 90% | 3097 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,086 psi | 88% | 3077 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,927 psi | 88% | 3028 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,675 psi | 76% | 3110 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 88% | 57,450 psi | 90% | 3143 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,637 psi | 57% | 1926 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,985 psi | 88% | 3002 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,709 psi | 87% | 3035 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,767 psi | 87% | 3025 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 55,056 psi | 86% | 3038 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,868 psi | 86% | 3022 fps | 97% |
| IMR 7828 SSC | <<locked>> | 98% | 54,650 psi | 86% | 3127 fps | 97.6% |
| Lovex S062 | <<locked>> | 82% | 56,101 psi | 88% | 2989 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,202 psi | 88% | 3022 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 57,638 psi | 90% | 3068 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,328 psi | 79% | 2956 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 56,898 psi | 89% | 3048 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,681 psi | 89% | 3091 fps | 98.6% |
| Norma MRP | <<locked>> | 96% | 56,507 psi | 89% | 3176 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 56,898 psi | 89% | 3087 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,347 psi | 87% | 3150 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 55,854 psi | 88% | 3091 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,606 psi | 84% | 3081 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,391 psi | 59% | 1969 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,013 psi | 86% | 3009 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,333 psi | 88% | 3114 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,766 psi | 86% | 3071 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,217 psi | 90% | 3163 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,066 psi | 77% | 3107 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 84% | 54,940 psi | 86% | 2999 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,159 psi | 90% | 3068 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 94% | 54,592 psi | 86% | 3074 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 86% | 54,114 psi | 85% | 2992 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,202 psi | 88% | 3022 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 56,101 psi | 88% | 2989 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,638 psi | 90% | 3068 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,811 psi | 89% | 3061 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,709 psi | 87% | 2884 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,579 psi | 87% | 2969 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,143 psi | 85% | 3068 fps | 98.5% |
| Somchem S355 | <<locked>> | 84% | 54,955 psi | 86% | 2999 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,158 psi | 86% | 2999 fps | 96.9% |
| Somchem S365 | <<locked>> | 92% | 56,855 psi | 89% | 3087 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,926 psi | 86% | 3041 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 56,275 psi | 88% | 2969 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,332 psi | 87% | 3028 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,491 psi | 85% | 3018 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 57,072 psi | 89% | 2969 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,447 psi | 85% | 3031 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,144 psi | 88% | 3100 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,536 psi | 89% | 3166 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,069 psi | 82% | 3068 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,955 psi | 86% | 2986 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,840 psi | 89% | 3107 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,563 psi | 86% | 3205 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,274 psi | 87% | 3041 fps | 98.5% |
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% | 53,301 psi | 84% | 2943 fps | 98.8% |
| Accurate 3100 | <<locked>> | 84% | 34,708 psi | 54% | 2631 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 52,968 psi | 83% | 2927 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,191 psi | 65% | 2802 fps | 99.1% |
| Accurate High Country | 67.6 gr | 88% | 43,932 psi | 69% | 2943 fps | 95% |
| Accurate MAGPRO | 73.5 gr | 94% | 51,474 psi | 81% | 3077 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 49,748 psi | 78% | 2907 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 42,424 psi | 66% | 2844 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 92% | 46,427 psi | 73% | 2956 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 98% | 36,753 psi | 58% | 2779 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 42,830 psi | 67% | 2848 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,676 psi | 79% | 2933 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 54,143 psi | 85% | 3009 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,769 psi | 62% | 2812 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,948 psi | 72% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 42,366 psi | 66% | 2838 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,234 psi | 63% | 2831 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,196 psi | 46% | 2543 fps | 97.3% |
| Alliant Reloder-25 | <<locked>> | 88% | 33,257 psi | 52% | 2680 fps | 96% |
| Alliant Reloder-26 | 63.3 gr | 80% | 31,560 psi | 49% | 2664 fps | 96% |
| Bofors RP15 | <<locked>> | 92% | 42,540 psi | 67% | 2881 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,198 psi | 80% | 2946 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,424 psi | 66% | 2907 fps | 95% |
| Bofors RP5 | <<locked>> | 88% | 40,234 psi | 63% | 2831 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 44,686 psi | 70% | 2815 fps | 97.4% |
| Hodgdon H1000 | <<locked>> | 96% | 42,583 psi | 67% | 2867 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 51,619 psi | 81% | 2963 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 43,178 psi | 68% | 2851 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 80% | 45,963 psi | 72% | 2877 fps | 97% |
| Hodgdon H4831 | <<locked>> | 92% | 49,908 psi | 78% | 2969 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,776 psi | 76% | 2946 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,434 psi | 59% | 2697 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,827 psi | 62% | 2897 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 42,424 psi | 66% | 2871 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 43% | 1719 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,344 psi | 82% | 2943 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,379 psi | 63% | 2740 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,267 psi | 73% | 2848 fps | 98.1% |
| IMR 4831 | <<locked>> | 80% | 39,407 psi | 62% | 2749 fps | 98.9% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,312 psi | 76% | 2904 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 94% | 47,718 psi | 75% | 2999 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 52,736 psi | 83% | 2940 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,569 psi | 68% | 2792 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 41,742 psi | 65% | 2772 fps | 97.4% |
| Lovex S071 | <<locked>> | 88% | 33,736 psi | 53% | 2608 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 53,505 psi | 84% | 2995 fps | 100% |
| Norma 204 | <<locked>> | 82% | 42,888 psi | 67% | 2831 fps | 95.6% |
| Norma MRP | <<locked>> | 84% | 36,593 psi | 57% | 2772 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 40,698 psi | 64% | 2792 fps | 99% |
| Ramshot Grand | <<locked>> | 92% | 44,454 psi | 70% | 2940 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 39,668 psi | 62% | 2779 fps | 97.4% |
| Ramshot Magnum | <<locked>> | 92% | 39,537 psi | 62% | 2805 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,833 psi | 44% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,300 psi | 80% | 2946 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,805 psi | 76% | 2999 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,147 psi | 64% | 2818 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,668 psi | 62% | 2831 fps | 98.5% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,593 psi | 57% | 2805 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 48,109 psi | 75% | 2890 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 46,920 psi | 74% | 2884 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 86% | 41,481 psi | 65% | 2818 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 44,686 psi | 70% | 2815 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,569 psi | 68% | 2792 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 52,736 psi | 83% | 2940 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,742 psi | 65% | 2772 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,734 psi | 78% | 2949 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,081 psi | 77% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,627 psi | 67% | 2736 fps | 97.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 41,104 psi | 64% | 2815 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 48,312 psi | 76% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,211 psi | 76% | 2877 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 37,507 psi | 59% | 2749 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 39,305 psi | 62% | 2740 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 46,151 psi | 72% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,264 psi | 66% | 2795 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 38,928 psi | 61% | 2723 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 53,490 psi | 84% | 2917 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,698 psi | 65% | 2792 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 32,503 psi | 51% | 2625 fps | 97.4% |
| Vihtavuori N560 | <<locked>> | 92% | 49,197 psi | 77% | 3035 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 98% | 48,544 psi | 76% | 3002 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,423 psi | 65% | 2759 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,352 psi | 68% | 2858 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,715 psi | 40% | 2513 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,423 psi | 65% | 2785 fps | 95.4% |
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 Weath. Mag. loaded with the .284 | 140gr | Ferrobull Tripple Expand Jagd. Winchester StaBALL HD delivers the highest muzzle velocity at 3,205 fps; across all powders the maximum-charge window runs from 1,926 fps to 3,205 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 140.0 gr projectile in 0.284" calls for a 1:11.5 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. Alliant Reloder-26, Accurate High Country, Accurate MAGPRO rank at the top here: for 7 mm Weath. Mag. with the .284 | 140gr | Ferrobull Tripple Expand Jagd 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.