Load Specifications
Load data in caliber 7 mm STW with .284 | 110gr | Speer MHP bullet and 86 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% | 59,074 psi | 89% | 3287 fps | 99% |
| Accurate 3100 | <<locked>> | 96% | 56,434 psi | 85% | 3278 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 59,045 psi | 89% | 3278 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,450 psi | 86% | 3337 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 58,044 psi | 87% | 3435 fps | 97.5% |
| Accurate MAGPRO | <<locked>> | 96% | 59,437 psi | 89% | 3435 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 58,334 psi | 87% | 3310 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 58,610 psi | 88% | 3386 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 96% | 56,420 psi | 85% | 3373 fps | 97% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,163 psi | 63% | 3107 fps | 96.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 58,711 psi | 88% | 3379 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 59,683 psi | 89% | 3337 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 59,799 psi | 90% | 3363 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 58,073 psi | 87% | 3399 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 59,930 psi | 90% | 3419 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,943 psi | 87% | 3366 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 60,234 psi | 90% | 3435 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,246 psi | 86% | 3356 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,185 psi | 80% | 3343 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 58,334 psi | 87% | 3445 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 59,074 psi | 89% | 3412 fps | 98.5% |
| Bofors RP3 | <<locked>> | 82% | 57,348 psi | 86% | 3297 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 60,234 psi | 90% | 3435 fps | 98.8% |
| Bofors RP7 | <<locked>> | 88% | 59,944 psi | 90% | 3340 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,359 psi | 78% | 3278 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 82% | 57,319 psi | 86% | 3310 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 59,451 psi | 89% | 3392 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 86% | 58,175 psi | 87% | 3346 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 94% | 56,362 psi | 84% | 3307 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 59,132 psi | 89% | 3356 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,639 psi | 88% | 3314 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,996 psi | 78% | 3389 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 86% | 56,434 psi | 85% | 3356 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,637 psi | 55% | 2185 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,522 psi | 86% | 3294 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 60,147 psi | 90% | 3330 fps | 99.5% |
| IMR 4350 | <<locked>> | 90% | 57,957 psi | 87% | 3314 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,696 psi | 86% | 3307 fps | 99.2% |
| IMR 4831 | <<locked>> | 90% | 57,783 psi | 87% | 3323 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,421 psi | 86% | 3297 fps | 96.7% |
| IMR 7828 SSC | <<locked>> | 98% | 58,059 psi | 87% | 3415 fps | 97.4% |
| Lovex S062 | <<locked>> | 82% | 58,073 psi | 87% | 3287 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,421 psi | 88% | 3307 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 60,278 psi | 90% | 3356 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,679 psi | 80% | 3235 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 59,088 psi | 89% | 3343 fps | 100% |
| Norma 204 | <<locked>> | 90% | 59,379 psi | 89% | 3373 fps | 98.4% |
| Norma MRP | <<locked>> | 94% | 56,246 psi | 84% | 3396 fps | 99.2% |
| Norma URP | <<locked>> | 90% | 59,611 psi | 89% | 3379 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 59,059 psi | 89% | 3432 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 58,668 psi | 88% | 3373 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,943 psi | 87% | 3363 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,434 psi | 56% | 2238 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,043 psi | 86% | 3291 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 59,248 psi | 89% | 3409 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,754 psi | 87% | 3356 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,072 psi | 84% | 3383 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,142 psi | 80% | 3389 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 82% | 59,901 psi | 90% | 3301 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 57,392 psi | 86% | 3291 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 59,828 psi | 90% | 3350 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 57,421 psi | 86% | 3356 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 59,944 psi | 90% | 3340 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,421 psi | 88% | 3307 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 58,073 psi | 87% | 3287 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 60,278 psi | 90% | 3356 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 59,146 psi | 89% | 3353 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,276 psi | 86% | 3166 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 58,044 psi | 87% | 3255 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,956 psi | 85% | 3350 fps | 98.3% |
| Somchem S355 | <<locked>> | 84% | 56,956 psi | 85% | 3284 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 58,044 psi | 87% | 3271 fps | 96.7% |
| Somchem S365 | <<locked>> | 92% | 60,176 psi | 90% | 3379 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 58,160 psi | 87% | 3323 fps | 99% |
| Vihtavuori N150 | <<locked>> | 86% | 58,537 psi | 88% | 3258 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,682 psi | 86% | 3310 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,696 psi | 86% | 3297 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 82% | 59,074 psi | 89% | 3255 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 56,927 psi | 85% | 3310 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 59,495 psi | 89% | 3386 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 60,278 psi | 90% | 3455 fps | 97.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 56,173 psi | 84% | 3353 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,798 psi | 87% | 3261 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 59,451 psi | 89% | 3392 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 59,509 psi | 89% | 3497 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 58,494 psi | 88% | 3317 fps | 98.4% |
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% | 55,405 psi | 83% | 3225 fps | 98.5% |
| Accurate 3100 | <<locked>> | 84% | 37,057 psi | 56% | 2890 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 55,317 psi | 83% | 3222 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 43,323 psi | 65% | 3074 fps | 98.7% |
| Accurate High Country | <<locked>> | 90% | 50,111 psi | 75% | 3287 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 94% | 55,216 psi | 83% | 3360 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 51,430 psi | 77% | 3196 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 86% | 44,498 psi | 67% | 3114 fps | 95% |
| ADI AR 2213 | 79.3 gr | 92% | 49,110 psi | 74% | 3232 fps | 95% |
| ADI AR 2225 | <<locked>> | 98% | 39,450 psi | 59% | 3041 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 44,860 psi | 67% | 3114 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,547 psi | 79% | 3222 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 56,028 psi | 84% | 3301 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,394 psi | 62% | 3084 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,022 psi | 72% | 3225 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 44,396 psi | 67% | 3104 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 90% | 45,585 psi | 68% | 3163 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,777 psi | 46% | 2792 fps | 96.7% |
| Alliant Reloder-25 | <<locked>> | 88% | 35,288 psi | 53% | 2933 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,736 psi | 51% | 2923 fps | 95.5% |
| Bofors RP15 | <<locked>> | 92% | 45,150 psi | 68% | 3150 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 53,432 psi | 80% | 3235 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 45,585 psi | 68% | 3163 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 46,296 psi | 69% | 3091 fps | 96.8% |
| Hodgdon H1000 | <<locked>> | 98% | 48,573 psi | 73% | 3202 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 53,635 psi | 80% | 3251 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 45,150 psi | 68% | 3127 fps | 97% |
| Hodgdon H4350 | <<locked>> | 80% | 47,616 psi | 71% | 3146 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 92% | 52,620 psi | 79% | 3245 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 51,547 psi | 77% | 3222 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,073 psi | 59% | 2959 fps | 99.2% |
| Hodgdon Retumbo | <<locked>> | 94% | 42,322 psi | 63% | 3166 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 44,759 psi | 67% | 3136 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 41% | 1969 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,056 psi | 81% | 3235 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 56,420 psi | 85% | 3271 fps | 99.1% |
| IMR 4350 | <<locked>> | 80% | 41,829 psi | 63% | 3002 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,747 psi | 72% | 3123 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 41,191 psi | 62% | 3012 fps | 98.4% |
| IMR 4955 Enduron | <<locked>> | 90% | 50,415 psi | 76% | 3173 fps | 95% |
| IMR 7828 SSC | <<locked>> | 94% | 50,444 psi | 76% | 3271 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 54,433 psi | 82% | 3228 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,266 psi | 68% | 3064 fps | 98.2% |
| Lovex S070 | <<locked>> | 80% | 43,511 psi | 65% | 3041 fps | 96.8% |
| Lovex S071 | <<locked>> | 88% | 35,984 psi | 54% | 2864 fps | 95% |
| Norma 203B | <<locked>> | 80% | 55,361 psi | 83% | 3287 fps | 100% |
| Norma 204 | <<locked>> | 82% | 44,933 psi | 67% | 3100 fps | 95% |
| Norma MRP | 76.5 gr | 86% | 41,887 psi | 63% | 3107 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 42,482 psi | 64% | 3061 fps | 98.5% |
| Ramshot Grand | <<locked>> | 94% | 50,807 psi | 76% | 3284 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 80% | 41,553 psi | 62% | 3045 fps | 96.8% |
| Ramshot Magnum | <<locked>> | 92% | 42,395 psi | 64% | 3064 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,891 psi | 42% | 2011 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,301 psi | 80% | 3228 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,966 psi | 76% | 3284 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,439 psi | 65% | 3091 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,669 psi | 62% | 3097 fps | 98.1% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 39,363 psi | 59% | 3068 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 56,115 psi | 84% | 3245 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 50,169 psi | 75% | 3176 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 48,979 psi | 73% | 3156 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 86% | 43,526 psi | 65% | 3087 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 46,296 psi | 69% | 3091 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,266 psi | 68% | 3064 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 54,433 psi | 82% | 3228 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,511 psi | 65% | 3041 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,692 psi | 77% | 3232 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,531 psi | 76% | 3068 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,324 psi | 66% | 2999 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 46,267 psi | 69% | 3146 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 50,125 psi | 75% | 3173 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,244 psi | 81% | 3205 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 39,334 psi | 59% | 3015 fps | 99.8% |
| Somchem S385 | <<locked>> | 84% | 41,437 psi | 62% | 3002 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 47,979 psi | 72% | 3087 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,019 psi | 66% | 3064 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 43,932 psi | 66% | 3041 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 55,405 psi | 83% | 3202 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,584 psi | 65% | 3061 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 80% | 34,534 psi | 52% | 2884 fps | 96.8% |
| Vihtavuori N560 | 81.8 gr | 92% | 52,112 psi | 78% | 3307 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 98% | 52,228 psi | 78% | 3278 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,424 psi | 65% | 3022 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 45,150 psi | 68% | 3127 fps | 97% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,427 psi | 41% | 2756 fps | 95.6% |
| Winchester Supreme 780 | <<locked>> | 88% | 43,874 psi | 66% | 3048 fps | 95% |
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 86 powders for 7 mm STW loaded with the .284 | 110gr | Speer MHP. Winchester StaBALL HD delivers the highest muzzle velocity at 3,497 fps; across all powders the maximum-charge window runs from 2,185 fps to 3,497 fps. ADI AR 2225 gives the best case fill at 100 %, and 86 of the 86 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 110.0 gr projectile in 0.284" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 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 | 110gr | Speer MHP 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.