Load Specifications
Load data in caliber 7 mm STW with .284 | 130gr | CutEdge ESP Raptor bullet and 79 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>> | 96% | 59,712 psi | 90% | 3136 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,768 psi | 85% | 3123 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 58,987 psi | 88% | 3238 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 57,479 psi | 86% | 3091 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 58,059 psi | 87% | 3182 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 96% | 60,104 psi | 90% | 3248 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,183 psi | 75% | 3061 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,875 psi | 67% | 3012 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 58,943 psi | 88% | 3114 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,783 psi | 87% | 3182 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 59,321 psi | 89% | 3199 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,435 psi | 86% | 3166 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 59,988 psi | 90% | 3235 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 57,159 psi | 86% | 3150 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 56,956 psi | 85% | 3209 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 58,102 psi | 87% | 3238 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,740 psi | 87% | 3133 fps | 96% |
| Bofors RP15 | <<locked>> | 98% | 58,813 psi | 88% | 3219 fps | 99.4% |
| Bofors RP3 | <<locked>> | 82% | 60,133 psi | 90% | 3130 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,620 psi | 79% | 3133 fps | 98.2% |
| Bofors RP5 | <<locked>> | 96% | 59,988 psi | 90% | 3235 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 59,059 psi | 89% | 3127 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 55,825 psi | 84% | 3163 fps | 99% |
| Hodgdon H414 | <<locked>> | 86% | 58,639 psi | 88% | 3179 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 57,493 psi | 86% | 3136 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 59,712 psi | 90% | 3179 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 58,479 psi | 88% | 3159 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 58,204 psi | 87% | 3100 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 55,753 psi | 84% | 3281 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 60,046 psi | 90% | 3222 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 55% | 2024 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,174 psi | 86% | 3107 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,913 psi | 85% | 3094 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 57,290 psi | 86% | 3114 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,608 psi | 85% | 3100 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 96% | 57,798 psi | 87% | 3219 fps | 98.6% |
| Lovex S065 | <<locked>> | 86% | 57,363 psi | 86% | 3091 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 59,263 psi | 89% | 3140 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 57,014 psi | 85% | 3097 fps | 100% |
| Norma 204 | <<locked>> | 88% | 58,653 psi | 88% | 3166 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 40,292 psi | 60% | 2923 fps | 97% |
| Norma MRP | <<locked>> | 94% | 60,278 psi | 90% | 3264 fps | 100% |
| Norma URP | <<locked>> | 88% | 58,885 psi | 88% | 3163 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 58,929 psi | 88% | 3241 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 58,088 psi | 87% | 3163 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 57,551 psi | 86% | 3166 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,739 psi | 57% | 2070 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 59,915 psi | 90% | 3136 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 58,943 psi | 88% | 3186 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 57,130 psi | 86% | 3143 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 60,046 psi | 90% | 3238 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 57,101 psi | 86% | 3278 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 51,779 psi | 78% | 3140 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 82% | 56,420 psi | 85% | 3071 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 59,190 psi | 89% | 3150 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 92% | 57,043 psi | 86% | 3156 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 86% | 59,059 psi | 89% | 3127 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,363 psi | 86% | 3091 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 59,263 psi | 89% | 3140 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 58,465 psi | 88% | 3133 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 60,075 psi | 90% | 2992 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,739 psi | 85% | 3038 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,608 psi | 85% | 3150 fps | 99.2% |
| Somchem S355 | <<locked>> | 84% | 59,843 psi | 90% | 3120 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 57,101 psi | 86% | 3074 fps | 97.8% |
| Somchem S365 | <<locked>> | 90% | 59,828 psi | 90% | 3163 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 57,551 psi | 86% | 3127 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 57,653 psi | 86% | 3038 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,087 psi | 86% | 3100 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 57,145 psi | 86% | 3100 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 60,089 psi | 90% | 3156 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 59,277 psi | 89% | 3179 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 59,944 psi | 90% | 3258 fps | 98.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 59,828 psi | 90% | 3228 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 52,779 psi | 79% | 3150 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 57,014 psi | 85% | 3051 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 58,856 psi | 88% | 3182 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 60,046 psi | 90% | 3287 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,856 psi | 87% | 3123 fps | 99.3% |
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% | 33,866 psi | 51% | 2644 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 45,774 psi | 69% | 2936 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 88% | 47,210 psi | 71% | 3025 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 53,940 psi | 81% | 3035 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 41,031 psi | 62% | 2861 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 88% | 45,179 psi | 68% | 2976 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 96% | 43,714 psi | 66% | 2930 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 94% | 36,463 psi | 55% | 2805 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 55,288 psi | 83% | 3061 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,019 psi | 66% | 2949 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,372 psi | 77% | 3081 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 41,089 psi | 62% | 2854 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 84% | 39,378 psi | 59% | 2844 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,706 psi | 49% | 2680 fps | 98.8% |
| Alliant Reloder-25 | <<locked>> | 84% | 32,692 psi | 49% | 2700 fps | 96.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,143 psi | 54% | 2822 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 54,230 psi | 81% | 3071 fps | 95.1% |
| Bofors RP15 | <<locked>> | 88% | 41,785 psi | 63% | 2900 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 56,347 psi | 84% | 3074 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 42,583 psi | 64% | 2936 fps | 95.5% |
| Bofors RP5 | <<locked>> | 84% | 39,378 psi | 59% | 2844 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 48,559 psi | 73% | 2949 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 92% | 41,785 psi | 63% | 2890 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 47,819 psi | 72% | 2992 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 80% | 50,386 psi | 76% | 3015 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 88% | 48,443 psi | 73% | 2986 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 88% | 47,442 psi | 71% | 2966 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,466 psi | 62% | 2828 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 39,233 psi | 59% | 2923 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 47,703 psi | 72% | 3012 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,630 psi | 41% | 1818 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,150 psi | 66% | 2874 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,966 psi | 75% | 2976 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 43,627 psi | 65% | 2881 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 46,630 psi | 70% | 2917 fps | 95.6% |
| IMR 7828 SSC | 73 gr | 88% | 43,540 psi | 65% | 2949 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 47,442 psi | 71% | 2923 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 45,745 psi | 69% | 2907 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 33,272 psi | 50% | 2628 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 44,266 psi | 66% | 2907 fps | 96.5% |
| Norma 217 | <<locked>> | 98% | 37,550 psi | 56% | 2854 fps | 95.9% |
| Norma MRP | 68.9 gr | 80% | 35,766 psi | 54% | 2782 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 45,020 psi | 67% | 2927 fps | 99.7% |
| Ramshot Grand | <<locked>> | 88% | 43,468 psi | 65% | 2959 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 44,077 psi | 66% | 2920 fps | 98.8% |
| Ramshot Magnum | <<locked>> | 88% | 38,841 psi | 58% | 2822 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,137 psi | 42% | 1857 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 56,057 psi | 84% | 3077 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 54,781 psi | 82% | 3127 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,035 psi | 69% | 2959 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,338 psi | 66% | 2972 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 36,100 psi | 54% | 2828 fps | 95.8% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 47,964 psi | 72% | 3068 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 52,823 psi | 79% | 3018 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 45,411 psi | 68% | 2904 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 82% | 40,350 psi | 60% | 2838 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,559 psi | 73% | 2949 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,442 psi | 71% | 2923 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 45,745 psi | 69% | 2907 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 54,650 psi | 82% | 3077 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,779 psi | 79% | 2894 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,499 psi | 70% | 2864 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 40,016 psi | 60% | 2831 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 52,649 psi | 79% | 3012 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 46,572 psi | 70% | 2890 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 42,076 psi | 63% | 2881 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,174 psi | 57% | 2756 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 50,444 psi | 76% | 2933 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,470 psi | 70% | 2923 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 37,840 psi | 57% | 2736 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 45,977 psi | 69% | 2923 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 36,579 psi | 55% | 2762 fps | 98.8% |
| Vihtavuori N560 | <<locked>> | 86% | 44,904 psi | 67% | 2982 fps | 95% |
| Vihtavuori N565 | <<locked>> | 92% | 44,962 psi | 67% | 2959 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 98% | 48,820 psi | 73% | 3074 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,050 psi | 69% | 2881 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,819 psi | 72% | 2992 fps | 98.8% |
| Winchester StaBALL HD | 68.2 gr | 80% | 29,037 psi | 44% | 2674 fps | 98.7% |
| Winchester Supreme 780 | <<locked>> | 84% | 40,248 psi | 60% | 2799 fps | 95.5% |
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 79 powders for 7 mm STW loaded with the .284 | 130gr | CutEdge ESP Raptor. Winchester StaBALL HD delivers the highest muzzle velocity at 3,287 fps; across all powders the maximum-charge window runs from 2,024 fps to 3,287 fps. ADI AR 2217 gives the best case fill at 100 %, and 79 of the 79 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 1:11.0 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 | CutEdge ESP Raptor 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.