Load Specifications
Load data in caliber 7 mm STW with .284 | 108gr | Reichenberg Spezial Jagd 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 Alliant Reloder-16.
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% | 59,045 psi | 89% | 3310 fps | 98.9% |
| Accurate 3100 | <<locked>> | 98% | 60,278 psi | 90% | 3360 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 58,813 psi | 88% | 3297 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,363 psi | 86% | 3360 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 59,074 psi | 89% | 3448 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 58,131 psi | 87% | 3333 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 58,407 psi | 88% | 3402 fps | 98.3% |
| ADI AR 2213 | <<locked>> | 96% | 56,188 psi | 84% | 3389 fps | 96.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,974 psi | 63% | 3123 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 59,408 psi | 89% | 3353 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 59,538 psi | 89% | 3383 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,928 psi | 87% | 3422 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 59,741 psi | 90% | 3445 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,769 psi | 87% | 3383 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 60,234 psi | 90% | 3458 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,000 psi | 85% | 3373 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,895 psi | 79% | 3360 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 58,247 psi | 87% | 3465 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 58,784 psi | 88% | 3432 fps | 98.4% |
| Bofors RP3 | <<locked>> | 82% | 57,101 psi | 86% | 3317 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 60,234 psi | 90% | 3458 fps | 98.8% |
| Bofors RP7 | <<locked>> | 88% | 59,872 psi | 90% | 3363 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,069 psi | 78% | 3294 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 82% | 57,043 psi | 86% | 3330 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 59,088 psi | 89% | 3409 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 86% | 57,841 psi | 87% | 3360 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 96% | 60,350 psi | 90% | 3399 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 96% | 58,958 psi | 88% | 3376 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,291 psi | 87% | 3333 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,735 psi | 78% | 3406 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 86% | 56,217 psi | 84% | 3376 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,579 psi | 55% | 2205 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,334 psi | 86% | 3314 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 59,959 psi | 90% | 3353 fps | 99.4% |
| IMR 4350 | <<locked>> | 90% | 57,856 psi | 87% | 3333 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,682 psi | 86% | 3330 fps | 99.1% |
| IMR 4831 | <<locked>> | 90% | 57,653 psi | 86% | 3346 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,246 psi | 86% | 3320 fps | 96.6% |
| IMR 7828 SSC | <<locked>> | 98% | 57,769 psi | 87% | 3432 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 57,870 psi | 87% | 3307 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,117 psi | 87% | 3323 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 59,944 psi | 90% | 3373 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,490 psi | 80% | 3255 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 58,842 psi | 88% | 3366 fps | 100% |
| Norma 204 | <<locked>> | 90% | 59,205 psi | 89% | 3392 fps | 98.3% |
| Norma MRP | <<locked>> | 96% | 60,220 psi | 90% | 3484 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 59,292 psi | 89% | 3396 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 58,972 psi | 88% | 3455 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 90% | 58,479 psi | 88% | 3392 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,580 psi | 86% | 3379 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,391 psi | 56% | 2257 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,797 psi | 85% | 3310 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 59,117 psi | 89% | 3435 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,537 psi | 86% | 3376 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 60,147 psi | 90% | 3471 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,026 psi | 79% | 3406 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 59,712 psi | 90% | 3320 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 57,130 psi | 86% | 3314 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 59,625 psi | 89% | 3369 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 94% | 57,188 psi | 86% | 3373 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 59,872 psi | 90% | 3363 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,117 psi | 87% | 3323 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 57,870 psi | 87% | 3307 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 59,944 psi | 90% | 3373 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 59,088 psi | 89% | 3373 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,087 psi | 86% | 3186 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,740 psi | 87% | 3271 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,724 psi | 85% | 3366 fps | 98.1% |
| Somchem S355 | <<locked>> | 84% | 56,956 psi | 85% | 3310 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 57,870 psi | 87% | 3291 fps | 96.6% |
| Somchem S365 | <<locked>> | 92% | 59,944 psi | 90% | 3399 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,914 psi | 87% | 3343 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 82% | 60,321 psi | 90% | 3274 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 58,291 psi | 87% | 3278 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,551 psi | 86% | 3333 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,450 psi | 86% | 3314 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 58,813 psi | 88% | 3274 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 56,826 psi | 85% | 3330 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 59,292 psi | 89% | 3409 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 59,959 psi | 90% | 3471 fps | 97.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,869 psi | 84% | 3366 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,624 psi | 86% | 3281 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 59,306 psi | 89% | 3412 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 59,335 psi | 89% | 3517 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 58,233 psi | 87% | 3337 fps | 98.3% |
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% | 55,158 psi | 83% | 3245 fps | 98.3% |
| Accurate 3100 | <<locked>> | 84% | 36,854 psi | 55% | 2907 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 55,129 psi | 83% | 3245 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 43,120 psi | 65% | 3094 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 94% | 54,984 psi | 82% | 3376 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 51,242 psi | 77% | 3215 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 47,369 psi | 71% | 3199 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 94% | 52,460 psi | 79% | 3320 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 98% | 39,276 psi | 59% | 3051 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,359 psi | 78% | 3241 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 55,811 psi | 84% | 3323 fps | 100% |
| Alliant Reloder-16 | 66.9 gr | 80% | 41,205 psi | 62% | 3100 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,732 psi | 72% | 3241 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 47,369 psi | 71% | 3189 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 45,426 psi | 68% | 3179 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,647 psi | 46% | 2808 fps | 96.4% |
| Alliant Reloder-25 | <<locked>> | 88% | 35,085 psi | 53% | 2946 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,489 psi | 50% | 2933 fps | 95.1% |
| Bofors RP15 | <<locked>> | 92% | 44,788 psi | 67% | 3163 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 53,200 psi | 80% | 3255 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 45,426 psi | 68% | 3179 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 46,108 psi | 69% | 3107 fps | 96.6% |
| Hodgdon H1000 | <<locked>> | 98% | 48,544 psi | 73% | 3222 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 53,403 psi | 80% | 3268 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 44,933 psi | 67% | 3140 fps | 96.8% |
| Hodgdon H4350 | <<locked>> | 80% | 47,413 psi | 71% | 3166 fps | 96.2% |
| Hodgdon H4831 | <<locked>> | 92% | 52,431 psi | 79% | 3261 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,013 psi | 82% | 3307 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,899 psi | 58% | 2979 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 96% | 45,136 psi | 68% | 3255 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 44,628 psi | 67% | 3153 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,296 psi | 41% | 1985 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,911 psi | 81% | 3258 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 56,260 psi | 84% | 3287 fps | 99% |
| IMR 4350 | <<locked>> | 80% | 41,669 psi | 62% | 3015 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,587 psi | 71% | 3143 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 41,017 psi | 61% | 3028 fps | 98.3% |
| IMR 4955 Enduron | <<locked>> | 92% | 53,708 psi | 81% | 3255 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 94% | 50,270 psi | 75% | 3291 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 54,259 psi | 81% | 3248 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,121 psi | 68% | 3084 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 43,323 psi | 65% | 3058 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 38,392 psi | 58% | 2943 fps | 95.9% |
| Norma 203B | <<locked>> | 80% | 55,158 psi | 83% | 3307 fps | 100% |
| Norma 204 | <<locked>> | 84% | 48,051 psi | 72% | 3186 fps | 95.8% |
| Norma MRP | 77.1 gr | 86% | 41,742 psi | 63% | 3127 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 42,308 psi | 63% | 3077 fps | 98.4% |
| Ramshot Grand | <<locked>> | 94% | 50,560 psi | 76% | 3297 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 41,336 psi | 62% | 3061 fps | 96.6% |
| Ramshot Magnum | <<locked>> | 92% | 42,192 psi | 63% | 3081 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,905 psi | 42% | 2031 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,258 psi | 80% | 3248 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,647 psi | 76% | 3301 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,192 psi | 65% | 3107 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,582 psi | 62% | 3117 fps | 97.9% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 42,308 psi | 63% | 3166 fps | 96.4% |
| Rottweil R 902 | <<locked>> | 80% | 55,970 psi | 84% | 3268 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 49,980 psi | 75% | 3192 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 48,936 psi | 73% | 3176 fps | 95% |
| Rottweil R 905 | <<locked>> | 88% | 46,572 psi | 70% | 3169 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 46,108 psi | 69% | 3107 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,121 psi | 68% | 3084 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 54,259 psi | 81% | 3248 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,323 psi | 65% | 3058 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,445 psi | 77% | 3251 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,401 psi | 76% | 3087 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,208 psi | 66% | 3018 fps | 96.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 46,166 psi | 69% | 3166 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 49,966 psi | 75% | 3192 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,070 psi | 81% | 3222 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 39,131 psi | 59% | 3028 fps | 99.8% |
| Somchem S385 | <<locked>> | 84% | 41,220 psi | 62% | 3018 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 56,681 psi | 85% | 3225 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 47,776 psi | 72% | 3107 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,830 psi | 66% | 3081 fps | 98.7% |
| Vihtavuori N165 | <<locked>> | 90% | 43,816 psi | 66% | 3058 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 55,230 psi | 83% | 3222 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,424 psi | 65% | 3077 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 34,229 psi | 51% | 2897 fps | 96.5% |
| Vihtavuori N560 | 82.4 gr | 92% | 51,895 psi | 78% | 3323 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 98% | 51,953 psi | 78% | 3294 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,178 psi | 65% | 3038 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 45,107 psi | 68% | 3146 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,253 psi | 41% | 2766 fps | 95.2% |
| Winchester Supreme 780 | <<locked>> | 90% | 46,920 psi | 70% | 3130 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 91 powders for 7 mm STW loaded with the .284 | 108gr | Reichenberg Spezial Jagd. Winchester StaBALL HD delivers the highest muzzle velocity at 3,517 fps; across all powders the maximum-charge window runs from 2,205 fps to 3,517 fps. ADI AR 2217 gives the best case fill at 100 %, and 91 of the 91 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 108.0 gr projectile in 0.284" calls for a 1:16.0 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, Alliant Reloder-16 rank at the top here: for 7 mm STW with the .284 | 108gr | Reichenberg Spezial Jagd they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Norma 217 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.