Load Specifications
Load data in caliber 7 mm STW with .284 | 154gr | Norma Soft Point bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Vihtavuori N560.
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 3100 | <<locked>> | 90% | 56,927 psi | 85% | 2890 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,392 psi | 86% | 2913 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 59,915 psi | 90% | 3051 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 88% | 58,189 psi | 87% | 2976 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 90% | 56,550 psi | 85% | 2989 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 58,827 psi | 88% | 3015 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 53,403 psi | 80% | 2976 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 58,320 psi | 87% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 57,725 psi | 87% | 2963 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,942 psi | 85% | 2982 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,624 psi | 88% | 2946 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 58,682 psi | 88% | 3015 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 59,698 psi | 89% | 3038 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 56,666 psi | 85% | 3038 fps | 97.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 57,435 psi | 86% | 2946 fps | 97.7% |
| Bofors RP15 | <<locked>> | 94% | 59,814 psi | 90% | 3025 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 58,508 psi | 88% | 3028 fps | 99.8% |
| Bofors RP5 | <<locked>> | 90% | 56,942 psi | 85% | 2982 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 58,363 psi | 87% | 2910 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 56,478 psi | 85% | 2979 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 82% | 58,813 psi | 88% | 2969 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 59,872 psi | 90% | 2982 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,682 psi | 88% | 2963 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 58,624 psi | 88% | 2887 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 57,682 psi | 86% | 3100 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 59,814 psi | 90% | 3002 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,550 psi | 56% | 1880 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,130 psi | 86% | 2900 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 59,814 psi | 90% | 2930 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,609 psi | 86% | 2904 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 60,118 psi | 90% | 2959 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 92% | 58,813 psi | 88% | 3028 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,718 psi | 73% | 2884 fps | 98.7% |
| Lovex S065 | <<locked>> | 82% | 57,188 psi | 86% | 2877 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 59,321 psi | 89% | 2930 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 58,334 psi | 87% | 2907 fps | 100% |
| Norma 204 | <<locked>> | 84% | 58,392 psi | 88% | 2959 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 49,617 psi | 74% | 2913 fps | 99.9% |
| Norma MRP | <<locked>> | 88% | 57,043 psi | 86% | 2999 fps | 100% |
| Norma URP | <<locked>> | 84% | 59,234 psi | 89% | 2946 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 60,234 psi | 90% | 3051 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 58,247 psi | 87% | 2953 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 58,682 psi | 88% | 2979 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,406 psi | 58% | 1923 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,522 psi | 86% | 2933 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 56,101 psi | 84% | 2959 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 58,726 psi | 88% | 3091 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 58,175 psi | 87% | 3051 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 88% | 58,929 psi | 88% | 2946 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 88% | 57,551 psi | 86% | 2956 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 58,363 psi | 87% | 2910 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,188 psi | 86% | 2877 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 59,321 psi | 89% | 2930 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 59,988 psi | 90% | 2884 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 57,145 psi | 86% | 2953 fps | 99.9% |
| Somchem S361 | <<locked>> | 86% | 56,797 psi | 85% | 2877 fps | 99% |
| Somchem S365 | <<locked>> | 84% | 56,869 psi | 85% | 2897 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,885 psi | 87% | 2923 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 57,087 psi | 86% | 2884 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,711 psi | 87% | 2907 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 60,002 psi | 90% | 2940 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,753 psi | 85% | 2923 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 56,507 psi | 85% | 2999 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 94% | 57,217 psi | 86% | 2986 fps | 99.4% |
| Vihtavuori N568 | <<locked>> | 98% | 58,595 psi | 88% | 3048 fps | 98.9% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 59,814 psi | 90% | 3114 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,521 psi | 85% | 2831 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,813 psi | 88% | 2969 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 58,378 psi | 88% | 3035 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 57,957 psi | 87% | 2923 fps | 99.9% |
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 3100 | <<locked>> | 80% | 40,495 psi | 61% | 2612 fps | 99.3% |
| Accurate 4350 | <<locked>> | 80% | 53,476 psi | 80% | 2858 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 41,901 psi | 63% | 2726 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 44,527 psi | 67% | 2743 fps | 98.3% |
| ADI AR 2213 | <<locked>> | 80% | 39,958 psi | 60% | 2677 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 88% | 38,870 psi | 58% | 2648 fps | 96% |
| ADI AR 2225 | <<locked>> | 84% | 30,980 psi | 46% | 2487 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,126 psi | 77% | 2861 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,425 psi | 67% | 2733 fps | 98.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,567 psi | 61% | 2684 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,204 psi | 59% | 2635 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,881 psi | 51% | 2559 fps | 98.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,164 psi | 66% | 2792 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 48,588 psi | 73% | 2897 fps | 95.4% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 47,326 psi | 71% | 2766 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 37,637 psi | 56% | 2618 fps | 96.4% |
| Bofors RP30 | <<locked>> | 84% | 36,071 psi | 54% | 2602 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 40,567 psi | 61% | 2684 fps | 97.5% |
| Bofors RP7 | <<locked>> | 80% | 54,824 psi | 82% | 2858 fps | 100% |
| Hodgdon H1000 | <<locked>> | 84% | 37,043 psi | 56% | 2608 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 55,013 psi | 82% | 2913 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,496 psi | 64% | 2680 fps | 96.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,800 psi | 63% | 2664 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,167 psi | 72% | 2740 fps | 100% |
| Hodgdon Retumbo | 66.3 gr | 80% | 33,054 psi | 50% | 2582 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 55,608 psi | 83% | 2943 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,094 psi | 42% | 1683 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,256 psi | 75% | 2792 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 56,275 psi | 84% | 2877 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 50,531 psi | 76% | 2799 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,758 psi | 66% | 2677 fps | 96.7% |
| IMR 7828 SSC | <<locked>> | 80% | 38,522 psi | 58% | 2651 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 92% | 37,028 psi | 56% | 2641 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 53,780 psi | 81% | 2825 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,199 psi | 78% | 2822 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,969 psi | 52% | 2493 fps | 98.1% |
| Norma 204 | <<locked>> | 80% | 50,966 psi | 76% | 2841 fps | 99.3% |
| Norma 217 | <<locked>> | 88% | 32,430 psi | 49% | 2546 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 42,844 psi | 64% | 2756 fps | 99.1% |
| Norma URP | <<locked>> | 80% | 51,953 psi | 78% | 2838 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,348 psi | 57% | 2657 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 50,966 psi | 76% | 2844 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,476 psi | 52% | 2539 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,761 psi | 43% | 1722 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,766 psi | 81% | 2877 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,069 psi | 78% | 2900 fps | 100% |
| ReloadSwiss RS 76 | 71 gr | 80% | 32,314 psi | 48% | 2556 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 42,830 psi | 64% | 2779 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 45,484 psi | 68% | 2720 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 80% | 43,947 psi | 66% | 2723 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 80% | 54,824 psi | 82% | 2858 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,780 psi | 81% | 2825 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,199 psi | 78% | 2822 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,721 psi | 79% | 2776 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,598 psi | 65% | 2720 fps | 98.3% |
| Somchem S361 | <<locked>> | 80% | 46,383 psi | 70% | 2703 fps | 97.2% |
| Somchem S365 | <<locked>> | 80% | 49,632 psi | 74% | 2795 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,599 psi | 67% | 2703 fps | 99% |
| Vihtavuori N160 | <<locked>> | 80% | 53,330 psi | 80% | 2831 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,711 psi | 58% | 2575 fps | 97.5% |
| Vihtavuori N550 | <<locked>> | 80% | 52,794 psi | 79% | 2835 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,772 psi | 66% | 2717 fps | 100% |
| Vihtavuori N560 | 68.8 gr | 80% | 42,656 psi | 64% | 2743 fps | 96.3% |
| Vihtavuori N565 | <<locked>> | 84% | 40,567 psi | 61% | 2680 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 90% | 43,932 psi | 66% | 2792 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 96% | 51,808 psi | 78% | 2979 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,910 psi | 79% | 2782 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 55,013 psi | 82% | 2913 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,666 psi | 55% | 2677 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,814 psi | 61% | 2628 fps | 97.5% |
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 70 powders for 7 mm STW loaded with the .284 | 154gr | Norma Soft Point. Vihtavuori N570 delivers the highest muzzle velocity at 3,114 fps; across all powders the maximum-charge window runs from 1,880 fps to 3,114 fps. ADI AR 2217 gives the best case fill at 100 %, and 70 of the 70 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (460 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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. Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N560 rank at the top here: for 7 mm STW with the .284 | 154gr | Norma Soft Point 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.