Load Specifications
Load data in caliber 7 mm STW with .284 | 127gr | RWS Evolution Green bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ADI AR 2213.
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% | 59,451 psi | 89% | 3120 fps | 99.5% |
| Accurate 3100 | <<locked>> | 96% | 56,304 psi | 84% | 3114 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 58,813 psi | 88% | 3091 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,421 psi | 86% | 3163 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 59,364 psi | 89% | 3271 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 84% | 58,508 psi | 88% | 3130 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 58,856 psi | 88% | 3219 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 56,550 psi | 85% | 3212 fps | 97.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,210 psi | 71% | 3022 fps | 96.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,945 psi | 63% | 2969 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 59,886 psi | 90% | 3153 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 59,944 psi | 90% | 3179 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 58,465 psi | 88% | 3225 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 60,263 psi | 90% | 3241 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 58,189 psi | 87% | 3202 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,333 psi | 84% | 3205 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,450 psi | 86% | 3186 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,040 psi | 80% | 3179 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 58,436 psi | 88% | 3278 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 59,132 psi | 89% | 3248 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 57,174 psi | 86% | 3114 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,124 psi | 74% | 3097 fps | 97% |
| Bofors RP5 | <<locked>> | 96% | 56,333 psi | 84% | 3205 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 60,118 psi | 90% | 3166 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,388 psi | 79% | 3127 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 82% | 57,363 psi | 86% | 3136 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 59,509 psi | 89% | 3219 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 58,566 psi | 88% | 3179 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 94% | 56,536 psi | 85% | 3153 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 59,321 psi | 89% | 3196 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,798 psi | 88% | 3140 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,996 psi | 78% | 3238 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 56,637 psi | 85% | 3196 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,709 psi | 55% | 2031 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,928 psi | 87% | 3114 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 58,146 psi | 87% | 3146 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 58,044 psi | 87% | 3136 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 57,812 psi | 87% | 3150 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,551 psi | 86% | 3136 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 98% | 58,175 psi | 87% | 3251 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 58,117 psi | 87% | 3100 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,479 psi | 88% | 3133 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 60,263 psi | 90% | 3179 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,388 psi | 80% | 3068 fps | 99.8% |
| Norma 203B | <<locked>> | 82% | 59,234 psi | 89% | 3163 fps | 100% |
| Norma 204 | <<locked>> | 90% | 59,538 psi | 89% | 3205 fps | 99% |
| Norma MRP | <<locked>> | 94% | 56,159 psi | 84% | 3228 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 59,741 psi | 90% | 3202 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 59,379 psi | 89% | 3274 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 90% | 58,784 psi | 88% | 3202 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,870 psi | 87% | 3199 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,405 psi | 56% | 2077 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,130 psi | 86% | 3120 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 59,727 psi | 90% | 3232 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,885 psi | 87% | 3186 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,362 psi | 84% | 3215 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,953 psi | 79% | 3232 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 82% | 60,031 psi | 90% | 3117 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 57,508 psi | 86% | 3114 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 59,886 psi | 90% | 3182 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 94% | 57,537 psi | 86% | 3189 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 88% | 60,118 psi | 90% | 3166 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,479 psi | 88% | 3133 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 58,117 psi | 87% | 3100 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 60,263 psi | 90% | 3179 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 59,495 psi | 89% | 3176 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,624 psi | 86% | 2989 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 58,131 psi | 87% | 3084 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,072 psi | 86% | 3186 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 57,246 psi | 86% | 3110 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 58,204 psi | 87% | 3114 fps | 97.6% |
| Somchem S365 | <<locked>> | 92% | 60,336 psi | 90% | 3202 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 58,088 psi | 87% | 3159 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 58,769 psi | 88% | 3081 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,899 psi | 87% | 3136 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,870 psi | 87% | 3133 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 82% | 59,088 psi | 89% | 3074 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 57,000 psi | 85% | 3140 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 59,582 psi | 89% | 3212 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 60,336 psi | 90% | 3291 fps | 98.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,796 psi | 84% | 3189 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,856 psi | 87% | 3091 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 59,727 psi | 90% | 3222 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 59,872 psi | 90% | 3327 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 58,479 psi | 88% | 3153 fps | 99.1% |
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% | 55,448 psi | 83% | 3058 fps | 99.1% |
| Accurate 3100 | <<locked>> | 82% | 34,142 psi | 51% | 2677 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 55,027 psi | 82% | 3038 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 43,120 psi | 65% | 2910 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 92% | 51,184 psi | 77% | 3127 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 51,517 psi | 77% | 3018 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 41,553 psi | 62% | 2894 fps | 95.3% |
| ADI AR 2213 | 72.6 gr | 90% | 45,847 psi | 69% | 3009 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 98% | 43,990 psi | 66% | 2956 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 36,593 psi | 55% | 2828 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,692 psi | 79% | 3045 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 56,130 psi | 84% | 3123 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,655 psi | 62% | 2927 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,211 psi | 72% | 3058 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 41,524 psi | 62% | 2887 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 42,627 psi | 64% | 2946 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,603 psi | 46% | 2651 fps | 97.8% |
| Alliant Reloder-25 | <<locked>> | 86% | 32,779 psi | 49% | 2726 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,518 psi | 50% | 2779 fps | 96.8% |
| Bofors RP15 | <<locked>> | 90% | 42,032 psi | 63% | 2930 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 53,417 psi | 80% | 3058 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 42,482 psi | 64% | 2963 fps | 95% |
| Bofors RP5 | <<locked>> | 88% | 42,627 psi | 64% | 2946 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 46,267 psi | 69% | 2927 fps | 97.7% |
| Hodgdon H1000 | <<locked>> | 94% | 42,119 psi | 63% | 2917 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 53,650 psi | 80% | 3077 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,223 psi | 68% | 2966 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 47,834 psi | 72% | 2989 fps | 97.4% |
| Hodgdon H4831 | <<locked>> | 90% | 48,965 psi | 73% | 3015 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 48,138 psi | 72% | 3002 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,001 psi | 58% | 2802 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 92% | 39,392 psi | 59% | 2946 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 44,933 psi | 67% | 2982 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,369 psi | 41% | 1821 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,215 psi | 81% | 3058 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,003 psi | 63% | 2851 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,950 psi | 72% | 2963 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 41,234 psi | 62% | 2858 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 88% | 47,282 psi | 71% | 2953 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 92% | 47,036 psi | 71% | 3048 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 54,636 psi | 82% | 3051 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,179 psi | 68% | 2904 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 43,482 psi | 65% | 2884 fps | 97.8% |
| Lovex S071 | <<locked>> | 86% | 33,373 psi | 50% | 2657 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 55,477 psi | 83% | 3107 fps | 100% |
| Norma 204 | <<locked>> | 80% | 41,901 psi | 63% | 2877 fps | 95.2% |
| Norma MRP | 69.9 gr | 84% | 38,769 psi | 58% | 2884 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 42,569 psi | 64% | 2904 fps | 99.2% |
| Ramshot Grand | <<locked>> | 90% | 43,772 psi | 66% | 2986 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 41,597 psi | 62% | 2890 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 90% | 39,088 psi | 59% | 2848 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,876 psi | 42% | 1864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,519 psi | 80% | 3058 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,227 psi | 77% | 3110 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,381 psi | 65% | 2933 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,800 psi | 63% | 2946 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 36,318 psi | 54% | 2854 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 56,217 psi | 84% | 3064 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 50,169 psi | 75% | 3002 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 45,948 psi | 69% | 2936 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 40,698 psi | 61% | 2867 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 46,267 psi | 69% | 2927 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,179 psi | 68% | 2904 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 54,636 psi | 82% | 3051 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,482 psi | 65% | 2884 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,909 psi | 78% | 3061 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,575 psi | 76% | 2890 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,411 psi | 67% | 2844 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 40,335 psi | 60% | 2864 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 50,111 psi | 75% | 2999 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 47,311 psi | 71% | 2923 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 39,465 psi | 59% | 2858 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 38,493 psi | 58% | 2789 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 48,037 psi | 72% | 2917 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,077 psi | 66% | 2904 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 86% | 38,247 psi | 57% | 2769 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 55,448 psi | 83% | 3022 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,511 psi | 65% | 2904 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 34,330 psi | 51% | 2733 fps | 97.8% |
| Vihtavuori N560 | 74.9 gr | 90% | 48,559 psi | 73% | 3081 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 96% | 48,530 psi | 73% | 3058 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,497 psi | 65% | 2864 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,411 psi | 68% | 2972 fps | 98% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,137 psi | 41% | 2625 fps | 97.2% |
| Winchester Supreme 780 | <<locked>> | 86% | 40,857 psi | 61% | 2835 fps | 95.2% |
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 STW loaded with the .284 | 127gr | RWS Evolution Green. Winchester StaBALL HD delivers the highest muzzle velocity at 3,327 fps; across all powders the maximum-charge window runs from 2,031 fps to 3,327 fps. ADI AR 2217 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 (460 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 127.0 gr projectile in 0.284" calls for a 1:9.0 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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for 7 mm STW with the .284 | 127gr | RWS Evolution Green 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.