Load Specifications
Load data in caliber 7 mm STW with .284 | 100gr | Barnes Solid bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-16 and ReloadSwiss RS 70.
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.
A valid access license is required to use the Personalized Load Calculator.
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 2495 | <<locked>> | 82% | 58,436 psi | 88% | 3340 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,450 psi | 86% | 3343 fps | 98.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 60,002 psi | 90% | 3442 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 58,827 psi | 88% | 3399 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 56,971 psi | 85% | 3445 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 86% | 58,523 psi | 88% | 3432 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 58,334 psi | 87% | 3488 fps | 97.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 60,220 psi | 90% | 3540 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 58,900 psi | 88% | 3570 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 59,828 psi | 90% | 3461 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 59,973 psi | 90% | 3484 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 57,566 psi | 86% | 3514 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 59,538 psi | 89% | 3540 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 57,638 psi | 86% | 3468 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 59,625 psi | 89% | 3533 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,463 psi | 85% | 3461 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,747 psi | 73% | 3363 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,406 psi | 86% | 3550 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,549 psi | 82% | 3442 fps | 96.9% |
| Bofors RP3 | <<locked>> | 84% | 57,159 psi | 86% | 3412 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 59,625 psi | 89% | 3533 fps | 98% |
| Bofors RP7 | <<locked>> | 90% | 60,075 psi | 90% | 3451 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 84% | 57,464 psi | 86% | 3432 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 90% | 59,132 psi | 89% | 3501 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 88% | 58,305 psi | 87% | 3455 fps | 97.8% |
| Hodgdon H4831 | <<locked>> | 98% | 60,205 psi | 90% | 3474 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 58,030 psi | 87% | 3422 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 58,987 psi | 88% | 3474 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 56,115 psi | 84% | 3461 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,332 psi | 54% | 2270 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 58,755 psi | 88% | 3438 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,928 psi | 87% | 3415 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,724 psi | 85% | 3386 fps | 98.5% |
| IMR 4350 | <<locked>> | 92% | 57,943 psi | 87% | 3422 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 58,117 psi | 87% | 3425 fps | 98.7% |
| IMR 4831 | <<locked>> | 92% | 57,392 psi | 86% | 3435 fps | 99.9% |
| IMR 4895 | <<locked>> | 82% | 57,638 psi | 86% | 3458 fps | 100% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,624 psi | 86% | 3510 fps | 96.4% |
| Lovex S060 | <<locked>> | 82% | 59,059 psi | 89% | 3402 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 58,117 psi | 87% | 3409 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 58,421 psi | 88% | 3419 fps | 99.5% |
| Lovex S070 | <<locked>> | 92% | 60,234 psi | 90% | 3465 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,458 psi | 74% | 3264 fps | 98.2% |
| Norma 201 | <<locked>> | 82% | 59,422 psi | 89% | 3425 fps | 100% |
| Norma 202 | <<locked>> | 82% | 60,133 psi | 90% | 3419 fps | 100% |
| Norma 203B | <<locked>> | 84% | 59,263 psi | 89% | 3468 fps | 100% |
| Norma 204 | <<locked>> | 92% | 59,451 psi | 89% | 3481 fps | 97.6% |
| Norma MRP | <<locked>> | 98% | 59,698 psi | 89% | 3566 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 59,350 psi | 89% | 3491 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 56,695 psi | 85% | 3428 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 58,450 psi | 88% | 3527 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 92% | 58,508 psi | 88% | 3484 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,866 psi | 79% | 3379 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,072 psi | 56% | 2323 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 57,290 psi | 86% | 3406 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 58,711 psi | 88% | 3530 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,334 psi | 86% | 3465 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 60,031 psi | 90% | 3563 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,617 psi | 73% | 3389 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 84% | 60,089 psi | 90% | 3425 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 57,450 psi | 86% | 3412 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 59,785 psi | 90% | 3455 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 96% | 56,971 psi | 85% | 3451 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 90% | 60,075 psi | 90% | 3451 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 58,421 psi | 88% | 3419 fps | 99.5% |
| Shooters World Precision | <<locked>> | 84% | 58,117 psi | 87% | 3409 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 60,234 psi | 90% | 3465 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 59,161 psi | 89% | 3471 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 59,451 psi | 89% | 3448 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 59,712 psi | 90% | 3350 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 57,595 psi | 86% | 3291 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 58,247 psi | 87% | 3363 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,492 psi | 85% | 3448 fps | 97.4% |
| Somchem S335 | <<locked>> | 82% | 59,741 psi | 90% | 3340 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 57,145 psi | 86% | 3406 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 59,437 psi | 89% | 3491 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 57,754 psi | 87% | 3425 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 82% | 60,234 psi | 90% | 3327 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 56,797 psi | 85% | 3327 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 57,174 psi | 86% | 3337 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 58,581 psi | 88% | 3373 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 57,450 psi | 86% | 3422 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,363 psi | 86% | 3396 fps | 98% |
| Vihtavuori N540 | <<locked>> | 84% | 59,408 psi | 89% | 3383 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,884 psi | 85% | 3422 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 98% | 58,726 psi | 88% | 3491 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 59,625 psi | 89% | 3550 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 57,740 psi | 87% | 3373 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 59,350 psi | 89% | 3501 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,272 psi | 80% | 3527 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 59,988 psi | 90% | 3455 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 58,276 psi | 87% | 3422 fps | 97.6% |
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 2495 | <<locked>> | 80% | 54,549 psi | 82% | 3284 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,862 psi | 70% | 3150 fps | 95.8% |
| Accurate 3100 | <<locked>> | 88% | 39,073 psi | 59% | 3038 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 51,677 psi | 77% | 3287 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,914 psi | 60% | 3104 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 80% | 48,399 psi | 73% | 3251 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 92% | 50,792 psi | 76% | 3346 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 98% | 56,144 psi | 84% | 3471 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 54,665 psi | 82% | 3494 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,226 psi | 74% | 3278 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,533 psi | 79% | 3356 fps | 99.8% |
| Alliant Reloder-16 | 65.9 gr | 80% | 38,377 psi | 58% | 3110 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,295 psi | 66% | 3264 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 50,357 psi | 75% | 3330 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 48,341 psi | 72% | 3323 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 82% | 30,385 psi | 46% | 2874 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 92% | 37,231 psi | 56% | 3081 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 84% | 35,824 psi | 54% | 3081 fps | 95.3% |
| Bofors RP15 | <<locked>> | 96% | 47,456 psi | 71% | 3304 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 49,835 psi | 75% | 3291 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 48,341 psi | 72% | 3323 fps | 95.4% |
| Bofors RP7 | <<locked>> | 82% | 46,456 psi | 70% | 3196 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 50,053 psi | 75% | 3297 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 44,918 psi | 67% | 3225 fps | 95.9% |
| Hodgdon H4350 | <<locked>> | 82% | 47,616 psi | 71% | 3251 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 96% | 56,086 psi | 84% | 3406 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,013 psi | 54% | 2992 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 54,926 psi | 82% | 3412 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 44,498 psi | 67% | 3232 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,093 psi | 41% | 2044 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 55,201 psi | 83% | 3383 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,850 psi | 76% | 3291 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,142 psi | 80% | 3317 fps | 97.9% |
| IMR 4350 | <<locked>> | 84% | 44,686 psi | 67% | 3163 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,918 psi | 67% | 3166 fps | 95.8% |
| IMR 4831 | <<locked>> | 80% | 38,116 psi | 57% | 3045 fps | 96.7% |
| IMR 4895 | <<locked>> | 80% | 53,925 psi | 81% | 3392 fps | 100% |
| IMR 7828 SSC | <<locked>> | 98% | 53,650 psi | 80% | 3435 fps | 95.3% |
| Lovex S060 | <<locked>> | 80% | 55,332 psi | 83% | 3343 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 51,126 psi | 77% | 3291 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,409 psi | 64% | 3104 fps | 96.6% |
| Lovex S070 | <<locked>> | 82% | 43,439 psi | 65% | 3140 fps | 95.7% |
| Lovex S071 | <<locked>> | 94% | 40,422 psi | 61% | 3071 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 55,637 psi | 83% | 3366 fps | 100% |
| Norma 202 | <<locked>> | 80% | 56,478 psi | 85% | 3363 fps | 100% |
| Norma 203B | <<locked>> | 80% | 51,938 psi | 78% | 3343 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 51,634 psi | 77% | 3340 fps | 95.9% |
| Norma MRP | 79.4 gr | 90% | 44,309 psi | 66% | 3268 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 39,363 psi | 59% | 3094 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 80% | 52,823 psi | 79% | 3360 fps | 99.9% |
| Ramshot Grand | <<locked>> | 98% | 54,273 psi | 81% | 3448 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 82% | 41,220 psi | 62% | 3140 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 96% | 45,165 psi | 68% | 3222 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 41% | 2090 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,096 psi | 75% | 3274 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,007 psi | 70% | 3333 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,842 psi | 60% | 3114 fps | 96.8% |
| ReloadSwiss RS 70 | 72.1 gr | 80% | 38,624 psi | 58% | 3120 fps | 96% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 41,872 psi | 63% | 3222 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 52,837 psi | 79% | 3307 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,775 psi | 70% | 3225 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 92% | 52,228 psi | 78% | 3320 fps | 95% |
| Rottweil R 905 | <<locked>> | 92% | 49,545 psi | 74% | 3317 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 82% | 46,456 psi | 70% | 3196 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,409 psi | 64% | 3104 fps | 96.6% |
| Shooters World Precision | <<locked>> | 80% | 51,126 psi | 77% | 3291 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 43,439 psi | 65% | 3140 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,254 psi | 72% | 3281 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 55,709 psi | 84% | 3389 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 56,057 psi | 84% | 3297 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,587 psi | 71% | 3133 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,597 psi | 62% | 3038 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 49,124 psi | 74% | 3307 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 56,028 psi | 84% | 3287 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 46,920 psi | 70% | 3225 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 35,940 psi | 54% | 3041 fps | 98.9% |
| Somchem S385 | <<locked>> | 88% | 44,048 psi | 66% | 3163 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 56,608 psi | 85% | 3278 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 53,258 psi | 80% | 3274 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,534 psi | 80% | 3281 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,860 psi | 67% | 3140 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 40,901 psi | 61% | 3100 fps | 97.3% |
| Vihtavuori N165 | <<locked>> | 94% | 46,557 psi | 70% | 3196 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 51,982 psi | 78% | 3264 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,379 psi | 61% | 3091 fps | 97% |
| Vihtavuori N555 | <<locked>> | 82% | 33,750 psi | 51% | 2966 fps | 95.4% |
| Vihtavuori N560 | <<locked>> | 96% | 55,347 psi | 83% | 3474 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,263 psi | 60% | 3058 fps | 99.2% |
| Winchester 760 | <<locked>> | 82% | 45,107 psi | 68% | 3228 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 84% | 29,008 psi | 43% | 2900 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 56,173 psi | 84% | 3396 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 50,314 psi | 75% | 3278 fps | 95.8% |
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 103 powders for 7 mm STW loaded with the .284 | 100gr | Barnes Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,570 fps; across all powders the maximum-charge window runs from 2,270 fps to 3,570 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (460 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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, Alliant Reloder-16, ReloadSwiss RS 70 rank at the top here: for 7 mm STW with the .284 | 100gr | Barnes Solid they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2217, ADI AR 2225 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.