Load Specifications
Load data in caliber 7 mm STW with .284 | 110gr | Speer TNT bullet and 81 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% | 59,915 psi | 90% | 3301 fps | 99.1% |
| Accurate 3100 | <<locked>> | 96% | 57,464 psi | 86% | 3297 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 59,857 psi | 90% | 3287 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 58,421 psi | 88% | 3353 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 59,030 psi | 88% | 3323 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 59,408 psi | 89% | 3399 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 96% | 57,421 psi | 86% | 3392 fps | 97.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,946 psi | 64% | 3127 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 60,365 psi | 90% | 3346 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 59,059 psi | 89% | 3415 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,666 psi | 85% | 3369 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 58,943 psi | 88% | 3386 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 57,276 psi | 86% | 3386 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 58,349 psi | 87% | 3369 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,157 psi | 81% | 3360 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 59,741 psi | 90% | 3465 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 60,104 psi | 90% | 3432 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 58,088 psi | 87% | 3307 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,009 psi | 75% | 3264 fps | 96.2% |
| Bofors RP5 | <<locked>> | 96% | 57,276 psi | 86% | 3386 fps | 98.4% |
| Bofors RP7 | <<locked>> | 86% | 56,985 psi | 85% | 3294 fps | 98.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,200 psi | 80% | 3297 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 82% | 57,986 psi | 87% | 3323 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 60,321 psi | 90% | 3409 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 59,030 psi | 88% | 3360 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 94% | 57,334 psi | 86% | 3327 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 60,133 psi | 90% | 3373 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 59,335 psi | 89% | 3323 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,924 psi | 79% | 3412 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 86% | 57,232 psi | 86% | 3373 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 55% | 2192 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 58,262 psi | 87% | 3304 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 58,755 psi | 88% | 3327 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 58,523 psi | 88% | 3320 fps | 99.3% |
| IMR 4831 | <<locked>> | 90% | 58,668 psi | 88% | 3337 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 58,088 psi | 87% | 3314 fps | 97% |
| IMR 7828 SSC | <<locked>> | 98% | 59,088 psi | 89% | 3432 fps | 97.7% |
| Lovex S062 | <<locked>> | 82% | 58,827 psi | 88% | 3297 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 59,016 psi | 88% | 3317 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 57,334 psi | 86% | 3307 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,752 psi | 82% | 3251 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 59,814 psi | 90% | 3356 fps | 100% |
| Norma 204 | <<locked>> | 90% | 60,162 psi | 90% | 3386 fps | 98.6% |
| Norma MRP | <<locked>> | 94% | 57,261 psi | 86% | 3412 fps | 99.3% |
| Norma URP | <<locked>> | 88% | 56,681 psi | 85% | 3333 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,883 psi | 84% | 3379 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 90% | 59,466 psi | 89% | 3386 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 58,972 psi | 88% | 3379 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,536 psi | 56% | 2241 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,899 psi | 87% | 3307 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 60,307 psi | 90% | 3425 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 58,610 psi | 88% | 3366 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,971 psi | 85% | 3396 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,244 psi | 81% | 3412 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 58,131 psi | 87% | 3304 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,739 psi | 85% | 3301 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 94% | 58,218 psi | 87% | 3369 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 86% | 56,985 psi | 85% | 3294 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 88% | 59,016 psi | 88% | 3317 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 58,827 psi | 88% | 3297 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,334 psi | 86% | 3307 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 60,075 psi | 90% | 3366 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,972 psi | 87% | 3176 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 58,595 psi | 88% | 3264 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,754 psi | 87% | 3363 fps | 98.5% |
| Somchem S355 | <<locked>> | 84% | 57,885 psi | 87% | 3301 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 58,914 psi | 88% | 3284 fps | 97% |
| Somchem S365 | <<locked>> | 90% | 57,072 psi | 86% | 3333 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 58,914 psi | 88% | 3340 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 59,451 psi | 89% | 3268 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 58,581 psi | 88% | 3323 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 58,668 psi | 88% | 3310 fps | 99% |
| Vihtavuori N540 | <<locked>> | 82% | 59,698 psi | 89% | 3264 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 57,754 psi | 87% | 3323 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,724 psi | 85% | 3340 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 57,058 psi | 86% | 3399 fps | 96.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 57,159 psi | 86% | 3366 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 58,755 psi | 88% | 3274 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 60,321 psi | 90% | 3409 fps | 99.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 56,333 psi | 84% | 3448 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 59,480 psi | 89% | 3333 fps | 98.6% |
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% | 56,014 psi | 84% | 3238 fps | 98.6% |
| Accurate 3100 | <<locked>> | 84% | 37,666 psi | 56% | 2904 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 56,086 psi | 84% | 3235 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 44,034 psi | 66% | 3091 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 51,895 psi | 78% | 3205 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 45,281 psi | 68% | 3130 fps | 95.4% |
| ADI AR 2213 | 80.3 gr | 92% | 49,850 psi | 75% | 3248 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 98% | 40,161 psi | 60% | 3058 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,272 psi | 80% | 3235 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,076 psi | 63% | 3100 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,950 psi | 73% | 3238 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 45,165 psi | 68% | 3120 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 90% | 46,557 psi | 70% | 3179 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,328 psi | 47% | 2808 fps | 97% |
| Alliant Reloder-25 | <<locked>> | 88% | 35,940 psi | 54% | 2953 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,461 psi | 52% | 2940 fps | 95.9% |
| Bofors RP15 | <<locked>> | 92% | 45,919 psi | 69% | 3166 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 54,172 psi | 81% | 3248 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 46,601 psi | 70% | 3196 fps | 95.2% |
| Bofors RP5 | <<locked>> | 90% | 46,557 psi | 70% | 3179 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 46,905 psi | 70% | 3104 fps | 97% |
| Hodgdon H1000 | <<locked>> | 96% | 46,064 psi | 69% | 3150 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 54,317 psi | 81% | 3261 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 45,818 psi | 69% | 3140 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 80% | 48,254 psi | 72% | 3163 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 92% | 53,330 psi | 80% | 3258 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 52,272 psi | 78% | 3238 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,581 psi | 59% | 2969 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 94% | 43,004 psi | 64% | 3182 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 45,571 psi | 68% | 3153 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 41% | 1972 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,607 psi | 82% | 3245 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,424 psi | 64% | 3015 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,370 psi | 73% | 3136 fps | 97.8% |
| IMR 4831 | <<locked>> | 80% | 41,872 psi | 63% | 3028 fps | 98.6% |
| IMR 4955 Enduron | <<locked>> | 90% | 51,126 psi | 77% | 3186 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 94% | 51,213 psi | 77% | 3287 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 55,187 psi | 83% | 3241 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,876 psi | 69% | 3081 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 44,135 psi | 66% | 3054 fps | 97% |
| Lovex S071 | <<locked>> | 88% | 36,753 psi | 55% | 2884 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 56,101 psi | 84% | 3297 fps | 100% |
| Norma 204 | <<locked>> | 82% | 45,556 psi | 68% | 3114 fps | 95.3% |
| Norma MRP | 75.7 gr | 84% | 39,653 psi | 59% | 3051 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 43,178 psi | 65% | 3077 fps | 98.7% |
| Ramshot Grand | <<locked>> | 92% | 48,037 psi | 72% | 3228 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 42,163 psi | 63% | 3058 fps | 97.1% |
| Ramshot Magnum | <<locked>> | 92% | 43,076 psi | 65% | 3081 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,949 psi | 42% | 2014 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 54,114 psi | 81% | 3241 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,953 psi | 78% | 3301 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,092 psi | 66% | 3104 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,409 psi | 64% | 3114 fps | 98.3% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 40,118 psi | 60% | 3091 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 50,908 psi | 76% | 3186 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 49,748 psi | 75% | 3173 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 86% | 44,353 psi | 66% | 3100 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 46,905 psi | 70% | 3104 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,876 psi | 69% | 3081 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 55,187 psi | 83% | 3241 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 44,135 psi | 66% | 3054 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,359 psi | 78% | 3245 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,053 psi | 77% | 3074 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,904 psi | 67% | 3015 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 43,976 psi | 66% | 3097 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 50,850 psi | 76% | 3186 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 51,358 psi | 77% | 3153 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 40,045 psi | 60% | 3028 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 42,047 psi | 63% | 3018 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 48,646 psi | 73% | 3100 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,686 psi | 67% | 3077 fps | 99% |
| Vihtavuori N165 | <<locked>> | 88% | 41,756 psi | 63% | 2995 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 56,043 psi | 84% | 3212 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 44,251 psi | 66% | 3074 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 35,085 psi | 53% | 2900 fps | 97.1% |
| Vihtavuori N560 | 82.9 gr | 92% | 53,084 psi | 80% | 3327 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 96% | 49,487 psi | 74% | 3225 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,019 psi | 66% | 3031 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,977 psi | 69% | 3143 fps | 97.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,876 psi | 42% | 2776 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 88% | 44,599 psi | 67% | 3064 fps | 95.3% |
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 87 powders for 7 mm STW loaded with the .284 | 110gr | Speer TNT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,465 fps; across all powders the maximum-charge window runs from 2,192 fps to 3,465 fps. ADI AR 2217 gives the best case fill at 100 %, and 87 of the 87 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 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 | 110gr | Speer TNT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Norma 217, ReloadSwiss RS 80 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.