Load Specifications
Load data in caliber 7 mm STW with .284 | 130gr | Fox Classic Hunter bullet and 81 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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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 3100 | <<locked>> | 96% | 59,321 psi | 89% | 3133 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,318 psi | 84% | 3117 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 58,639 psi | 88% | 3235 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 82% | 57,305 psi | 86% | 3084 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,653 psi | 86% | 3173 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 96% | 59,741 psi | 90% | 3241 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,879 psi | 75% | 3054 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,599 psi | 67% | 3005 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 58,508 psi | 88% | 3107 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,595 psi | 86% | 3182 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 59,103 psi | 89% | 3196 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,290 psi | 86% | 3163 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 59,611 psi | 89% | 3228 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,739 psi | 85% | 3143 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 56,536 psi | 85% | 3202 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 57,696 psi | 86% | 3232 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,508 psi | 86% | 3130 fps | 95.9% |
| Bofors RP15 | <<locked>> | 98% | 58,436 psi | 88% | 3212 fps | 99.3% |
| Bofors RP3 | <<locked>> | 82% | 59,915 psi | 90% | 3127 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,272 psi | 78% | 3127 fps | 98.1% |
| Bofors RP5 | <<locked>> | 96% | 59,611 psi | 89% | 3228 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 58,668 psi | 88% | 3120 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 55,259 psi | 83% | 3153 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 82% | 59,930 psi | 90% | 3146 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 58,450 psi | 88% | 3176 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 57,087 psi | 86% | 3130 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 59,350 psi | 89% | 3173 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 58,117 psi | 87% | 3153 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,769 psi | 87% | 3094 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 55,405 psi | 83% | 3274 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 59,669 psi | 89% | 3215 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,898 psi | 55% | 2021 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 60,321 psi | 90% | 3120 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,043 psi | 86% | 3104 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,739 psi | 85% | 3094 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 56,869 psi | 85% | 3107 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 60,147 psi | 90% | 3156 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 96% | 57,421 psi | 86% | 3212 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 57,217 psi | 86% | 3087 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 59,103 psi | 89% | 3136 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,623 psi | 85% | 3091 fps | 100% |
| Norma 204 | <<locked>> | 88% | 58,262 psi | 87% | 3159 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 39,987 psi | 60% | 2913 fps | 96.9% |
| Norma MRP | <<locked>> | 94% | 59,857 psi | 90% | 3258 fps | 100% |
| Norma URP | <<locked>> | 88% | 58,697 psi | 88% | 3156 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 58,537 psi | 88% | 3235 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 57,696 psi | 86% | 3159 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 57,203 psi | 86% | 3163 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,608 psi | 56% | 2067 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 59,770 psi | 90% | 3133 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 58,450 psi | 88% | 3182 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,753 psi | 85% | 3140 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 59,611 psi | 89% | 3232 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 56,739 psi | 85% | 3271 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 51,430 psi | 77% | 3133 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 84% | 60,046 psi | 90% | 3123 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 58,798 psi | 88% | 3146 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 92% | 56,637 psi | 85% | 3150 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 58,668 psi | 88% | 3120 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,217 psi | 86% | 3087 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 59,103 psi | 89% | 3136 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 58,059 psi | 87% | 3127 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 59,640 psi | 89% | 2989 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,637 psi | 85% | 3038 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 60,147 psi | 90% | 3205 fps | 99.5% |
| Somchem S355 | <<locked>> | 84% | 59,654 psi | 89% | 3117 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,782 psi | 85% | 3071 fps | 97.7% |
| Somchem S365 | <<locked>> | 90% | 59,408 psi | 89% | 3156 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 57,174 psi | 86% | 3120 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 57,246 psi | 86% | 3031 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,666 psi | 85% | 3094 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,797 psi | 85% | 3094 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 59,727 psi | 90% | 3150 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 58,900 psi | 88% | 3173 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 59,553 psi | 89% | 3251 fps | 98.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 59,466 psi | 89% | 3222 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 52,243 psi | 78% | 3140 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,652 psi | 85% | 3045 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 58,682 psi | 88% | 3182 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 59,640 psi | 89% | 3284 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,493 psi | 86% | 3117 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% | 33,678 psi | 50% | 2641 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 45,542 psi | 68% | 2933 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 90% | 50,575 psi | 76% | 3094 fps | 96% |
| ADI AR 2208 | <<locked>> | 80% | 53,751 psi | 81% | 3031 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 40,872 psi | 61% | 2854 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 88% | 45,063 psi | 68% | 2972 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 96% | 43,410 psi | 65% | 2923 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 94% | 36,201 psi | 54% | 2799 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 54,882 psi | 82% | 3051 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,801 psi | 66% | 2946 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,952 psi | 76% | 3074 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 40,756 psi | 61% | 2848 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 84% | 39,059 psi | 59% | 2838 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,503 psi | 49% | 2677 fps | 98.8% |
| Alliant Reloder-25 | <<locked>> | 84% | 32,387 psi | 49% | 2694 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,795 psi | 54% | 2812 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,983 psi | 81% | 3068 fps | 95% |
| Bofors RP15 | <<locked>> | 88% | 41,597 psi | 62% | 2894 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 55,898 psi | 84% | 3068 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 42,221 psi | 63% | 2930 fps | 95.4% |
| Bofors RP5 | <<locked>> | 84% | 39,059 psi | 59% | 2838 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 48,356 psi | 72% | 2946 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 92% | 41,481 psi | 62% | 2884 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 55,956 psi | 84% | 3087 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 47,456 psi | 71% | 2986 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 49,995 psi | 75% | 3005 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 48,109 psi | 72% | 2976 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 88% | 47,282 psi | 71% | 2963 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,234 psi | 62% | 2822 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 38,914 psi | 58% | 2917 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 47,326 psi | 71% | 3005 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 41% | 1811 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 56,550 psi | 85% | 3068 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,787 psi | 66% | 2864 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,806 psi | 75% | 2976 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 43,439 psi | 65% | 2877 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 46,296 psi | 69% | 2913 fps | 95.5% |
| IMR 7828 SSC | 72.6 gr | 88% | 43,207 psi | 65% | 2943 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,239 psi | 71% | 2920 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 45,542 psi | 68% | 2900 fps | 98.5% |
| Lovex S071 | <<locked>> | 84% | 32,967 psi | 49% | 2621 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 43,918 psi | 66% | 2900 fps | 96.3% |
| Norma 217 | <<locked>> | 98% | 37,246 psi | 56% | 2848 fps | 95.8% |
| Norma MRP | 68.6 gr | 80% | 35,578 psi | 53% | 2779 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 44,846 psi | 67% | 2923 fps | 99.7% |
| Ramshot Grand | <<locked>> | 88% | 43,120 psi | 65% | 2949 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 43,714 psi | 66% | 2910 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 38,522 psi | 58% | 2815 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,152 psi | 42% | 1857 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 55,666 psi | 83% | 3071 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 54,302 psi | 81% | 3123 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,672 psi | 68% | 2949 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,179 psi | 66% | 2969 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 35,824 psi | 54% | 2818 fps | 95.6% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 47,398 psi | 71% | 3054 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 52,620 psi | 79% | 3012 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 45,092 psi | 68% | 2897 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 82% | 39,972 psi | 60% | 2828 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 48,356 psi | 72% | 2946 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,239 psi | 71% | 2920 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 45,542 psi | 68% | 2900 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 54,230 psi | 81% | 3068 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,591 psi | 79% | 2894 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,166 psi | 69% | 2858 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 39,653 psi | 59% | 2822 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 52,460 psi | 79% | 3009 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 46,267 psi | 69% | 2884 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 41,684 psi | 62% | 2874 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,840 psi | 57% | 2749 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 50,270 psi | 75% | 2927 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,267 psi | 69% | 2920 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 37,666 psi | 56% | 2733 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 45,629 psi | 68% | 2920 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 36,361 psi | 55% | 2759 fps | 98.7% |
| Vihtavuori N560 | <<locked>> | 88% | 47,892 psi | 72% | 3045 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 92% | 44,657 psi | 67% | 2953 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 98% | 48,486 psi | 73% | 3071 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,701 psi | 69% | 2877 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,630 psi | 71% | 2989 fps | 98.8% |
| Winchester StaBALL HD | 67.8 gr | 80% | 28,761 psi | 43% | 2667 fps | 98.6% |
| Winchester Supreme 780 | <<locked>> | 84% | 40,118 psi | 60% | 2795 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 81 powders for 7 mm STW loaded with the .284 | 130gr | Fox Classic Hunter. Winchester StaBALL HD delivers the highest muzzle velocity at 3,284 fps; across all powders the maximum-charge window runs from 2,021 fps to 3,284 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (460 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.284" calls for a 1:10.5 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 STW with the .284 | 130gr | Fox Classic 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.