Load Specifications
Load data in caliber 7 mm STW with .284 | 135gr | CutEdge ER Raptor bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 and Winchester StaBALL HD.
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% | 58,581 psi | 88% | 3074 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 59,872 psi | 90% | 3120 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,812 psi | 87% | 3176 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 82% | 56,768 psi | 85% | 3028 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,203 psi | 86% | 3120 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 96% | 59,103 psi | 89% | 3186 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,400 psi | 74% | 3002 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,990 psi | 66% | 2953 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 57,392 psi | 86% | 3117 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 58,247 psi | 87% | 3051 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,087 psi | 86% | 3123 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 58,450 psi | 88% | 3136 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,652 psi | 85% | 3107 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 58,929 psi | 88% | 3173 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 59,901 psi | 90% | 3140 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,695 psi | 83% | 3146 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,739 psi | 85% | 3176 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,000 psi | 85% | 3074 fps | 95.9% |
| Bofors RP15 | <<locked>> | 98% | 57,783 psi | 87% | 3156 fps | 99.4% |
| Bofors RP3 | <<locked>> | 82% | 59,292 psi | 89% | 3068 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,503 psi | 77% | 3074 fps | 98.1% |
| Bofors RP5 | <<locked>> | 96% | 58,929 psi | 88% | 3173 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 58,160 psi | 87% | 3064 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,607 psi | 82% | 3100 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 82% | 59,379 psi | 89% | 3091 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 57,841 psi | 87% | 3117 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 56,594 psi | 85% | 3074 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 58,914 psi | 88% | 3120 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,667 psi | 86% | 3100 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,101 psi | 86% | 3038 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,650 psi | 82% | 3215 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 58,929 psi | 88% | 3156 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,927 psi | 55% | 1978 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 59,756 psi | 90% | 3064 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 60,249 psi | 90% | 3104 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 59,915 psi | 90% | 3091 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 60,118 psi | 90% | 3107 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 59,422 psi | 89% | 3100 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 96% | 56,724 psi | 85% | 3156 fps | 98.6% |
| Lovex S062 | <<locked>> | 82% | 60,234 psi | 90% | 3051 fps | 100% |
| Lovex S065 | <<locked>> | 86% | 56,681 psi | 85% | 3031 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 58,479 psi | 88% | 3077 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,825 psi | 84% | 3035 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,812 psi | 87% | 3107 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 39,276 psi | 59% | 2861 fps | 96.9% |
| Norma MRP | <<locked>> | 94% | 58,929 psi | 88% | 3196 fps | 100% |
| Norma URP | <<locked>> | 88% | 58,044 psi | 87% | 3100 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 57,667 psi | 86% | 3179 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 57,246 psi | 86% | 3104 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 56,028 psi | 84% | 3104 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,652 psi | 56% | 2021 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 59,074 psi | 89% | 3074 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,870 psi | 87% | 3123 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 60,147 psi | 90% | 3140 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 58,726 psi | 88% | 3173 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,840 psi | 84% | 3215 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,589 psi | 76% | 3081 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 84% | 59,611 psi | 89% | 3068 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 58,146 psi | 87% | 3087 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 94% | 59,959 psi | 90% | 3156 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 86% | 58,160 psi | 87% | 3064 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,681 psi | 85% | 3031 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 60,234 psi | 90% | 3051 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 58,479 psi | 88% | 3077 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,537 psi | 86% | 3071 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 59,350 psi | 89% | 2933 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 59,843 psi | 90% | 3038 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 59,509 psi | 89% | 3150 fps | 99.6% |
| Somchem S355 | <<locked>> | 84% | 59,205 psi | 89% | 3061 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 60,176 psi | 90% | 3077 fps | 98.4% |
| Somchem S365 | <<locked>> | 90% | 58,769 psi | 88% | 3100 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,565 psi | 85% | 3061 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 56,884 psi | 85% | 2979 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 60,133 psi | 90% | 3094 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 60,089 psi | 90% | 3097 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 59,205 psi | 89% | 3094 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 58,189 psi | 87% | 3117 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 58,668 psi | 88% | 3192 fps | 98.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 58,581 psi | 88% | 3166 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,474 psi | 77% | 3087 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 60,176 psi | 90% | 3045 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 58,088 psi | 87% | 3123 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 58,595 psi | 88% | 3228 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,826 psi | 85% | 3061 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% | 33,286 psi | 50% | 2595 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 45,034 psi | 68% | 2877 fps | 99.8% |
| Accurate MAGPRO | 74.3 gr | 88% | 46,311 psi | 69% | 2969 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 53,388 psi | 80% | 2976 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 40,495 psi | 61% | 2805 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 88% | 44,396 psi | 67% | 2917 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 96% | 42,859 psi | 64% | 2867 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 94% | 35,810 psi | 54% | 2753 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 40,770 psi | 61% | 2802 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 54,505 psi | 82% | 2995 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,424 psi | 65% | 2894 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,357 psi | 75% | 3015 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 40,379 psi | 61% | 2795 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,609 psi | 58% | 2789 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,198 psi | 48% | 2631 fps | 98.9% |
| Alliant Reloder-25 | <<locked>> | 84% | 31,981 psi | 48% | 2644 fps | 96.1% |
| Alliant Reloder-26 | 68.3 gr | 80% | 35,346 psi | 53% | 2766 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,403 psi | 80% | 3012 fps | 95% |
| Bofors RP15 | <<locked>> | 88% | 41,031 psi | 62% | 2844 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 55,405 psi | 83% | 3012 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 41,684 psi | 62% | 2881 fps | 95.5% |
| Bofors RP5 | <<locked>> | 84% | 38,609 psi | 58% | 2789 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 48,037 psi | 72% | 2894 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 92% | 41,031 psi | 62% | 2831 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 55,535 psi | 83% | 3031 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 47,036 psi | 71% | 2933 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 80% | 49,559 psi | 74% | 2953 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 88% | 47,630 psi | 71% | 2923 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 88% | 46,615 psi | 70% | 2907 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,857 psi | 61% | 2772 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 38,522 psi | 58% | 2864 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 46,789 psi | 70% | 2949 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,514 psi | 41% | 1772 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 56,159 psi | 84% | 3012 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,526 psi | 65% | 2815 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,530 psi | 74% | 2923 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 42,931 psi | 64% | 2825 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 45,905 psi | 69% | 2861 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 88% | 42,699 psi | 64% | 2890 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 56,405 psi | 85% | 2999 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 46,934 psi | 70% | 2867 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 45,063 psi | 68% | 2848 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 32,692 psi | 49% | 2579 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 43,584 psi | 65% | 2848 fps | 96.5% |
| Norma 217 | <<locked>> | 98% | 36,506 psi | 55% | 2795 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 35,085 psi | 53% | 2730 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 44,309 psi | 66% | 2867 fps | 99.7% |
| Ramshot Grand | <<locked>> | 88% | 42,540 psi | 64% | 2897 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 43,337 psi | 65% | 2861 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 38,043 psi | 57% | 2766 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,050 psi | 42% | 1811 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 55,347 psi | 83% | 3018 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,621 psi | 80% | 3064 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,324 psi | 68% | 2900 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,671 psi | 65% | 2917 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 35,288 psi | 53% | 2769 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 46,543 psi | 70% | 3002 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 52,069 psi | 78% | 2956 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 44,773 psi | 67% | 2848 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 82% | 39,581 psi | 59% | 2779 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,037 psi | 72% | 2894 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,934 psi | 70% | 2867 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 56,405 psi | 85% | 2999 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 45,063 psi | 68% | 2848 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,838 psi | 81% | 3018 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,330 psi | 78% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,934 psi | 69% | 2808 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 39,233 psi | 59% | 2772 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 52,069 psi | 78% | 2956 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,861 psi | 69% | 2831 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 41,350 psi | 62% | 2822 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,449 psi | 56% | 2700 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 49,734 psi | 75% | 2874 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,803 psi | 69% | 2864 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 37,246 psi | 56% | 2684 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 45,223 psi | 68% | 2867 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 36,027 psi | 54% | 2713 fps | 98.8% |
| Vihtavuori N560 | <<locked>> | 86% | 44,048 psi | 66% | 2923 fps | 95% |
| Vihtavuori N565 | <<locked>> | 92% | 44,150 psi | 66% | 2904 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 98% | 47,674 psi | 71% | 3015 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,295 psi | 68% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,253 psi | 71% | 2940 fps | 98.9% |
| Winchester StaBALL HD | 65.6 gr | 80% | 28,471 psi | 43% | 2625 fps | 98.8% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,566 psi | 59% | 2743 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 84 powders for 7 mm STW loaded with the .284 | 135gr | CutEdge ER Raptor. Winchester StaBALL HD delivers the highest muzzle velocity at 3,228 fps; across all powders the maximum-charge window runs from 1,978 fps to 3,228 fps. ADI AR 2217 gives the best case fill at 100 %, and 84 of the 84 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 135.0 gr projectile in 0.284" calls for a 1:8.5 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. Accurate MAGPRO, Alliant Reloder-26, Winchester StaBALL HD rank at the top here: for 7 mm STW with the .284 | 135gr | CutEdge ER 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.