Load Specifications
Load data in caliber 7 mm STW with .284 | 160gr | Brenneke TAG bullet and 73 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.
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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 3100 | <<locked>> | 90% | 56,768 psi | 85% | 2844 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,203 psi | 86% | 2867 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 59,930 psi | 90% | 3009 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 88% | 58,436 psi | 88% | 2936 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 56,869 psi | 85% | 2949 fps | 99.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 59,277 psi | 89% | 2979 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 51,503 psi | 77% | 2946 fps | 96.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 53,490 psi | 80% | 2936 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 58,595 psi | 88% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 58,755 psi | 88% | 2927 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 57,885 psi | 87% | 2927 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 57,087 psi | 86% | 2943 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,784 psi | 88% | 2904 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 59,074 psi | 89% | 2976 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 59,959 psi | 90% | 2995 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 56,913 psi | 85% | 3002 fps | 97.9% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 57,595 psi | 86% | 2907 fps | 98% |
| Bofors RP15 | <<locked>> | 94% | 60,031 psi | 90% | 2986 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 58,523 psi | 88% | 2986 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 57,087 psi | 86% | 2943 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 58,566 psi | 88% | 2871 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 56,869 psi | 85% | 2943 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 58,929 psi | 88% | 2927 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 60,147 psi | 90% | 2943 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,900 psi | 88% | 2927 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 58,711 psi | 88% | 2844 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 57,899 psi | 87% | 3058 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 60,075 psi | 90% | 2963 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,521 psi | 56% | 1847 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,232 psi | 86% | 2861 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 59,930 psi | 90% | 2890 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,595 psi | 86% | 2858 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 60,336 psi | 90% | 2920 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 92% | 58,929 psi | 88% | 2989 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,834 psi | 73% | 2848 fps | 99% |
| Lovex S065 | <<locked>> | 82% | 57,072 psi | 86% | 2835 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 59,263 psi | 89% | 2887 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 58,204 psi | 87% | 2864 fps | 100% |
| Norma 204 | <<locked>> | 84% | 58,566 psi | 88% | 2917 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 49,530 psi | 74% | 2867 fps | 100% |
| Norma MRP | <<locked>> | 88% | 57,232 psi | 86% | 2959 fps | 100% |
| Norma URP | <<locked>> | 84% | 59,306 psi | 89% | 2900 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 55,999 psi | 84% | 2949 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 84% | 58,378 psi | 88% | 2910 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 58,755 psi | 88% | 2936 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,363 psi | 57% | 1890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,537 psi | 86% | 2890 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 56,333 psi | 84% | 2920 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 59,263 psi | 89% | 3051 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 58,552 psi | 88% | 3015 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 88% | 59,088 psi | 89% | 2907 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 57,682 psi | 86% | 2917 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 58,566 psi | 88% | 2871 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,072 psi | 86% | 2835 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 59,263 psi | 89% | 2887 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 60,002 psi | 90% | 2844 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 57,276 psi | 86% | 2913 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 56,898 psi | 85% | 2841 fps | 99.3% |
| Somchem S365 | <<locked>> | 84% | 56,869 psi | 85% | 2851 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,899 psi | 87% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 57,130 psi | 86% | 2841 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,870 psi | 87% | 2867 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 56,855 psi | 85% | 2881 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 84% | 60,046 psi | 90% | 2897 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,681 psi | 85% | 2877 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 56,753 psi | 85% | 2963 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 94% | 57,334 psi | 86% | 2946 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 98% | 58,958 psi | 88% | 3015 fps | 99.2% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 60,307 psi | 90% | 3077 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,681 psi | 85% | 2792 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,929 psi | 88% | 2927 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 58,769 psi | 88% | 2992 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 58,117 psi | 87% | 2884 fps | 100% |
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% | 40,176 psi | 60% | 2572 fps | 99.4% |
| Accurate 4350 | <<locked>> | 80% | 53,432 psi | 80% | 2812 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 41,742 psi | 63% | 2687 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 44,512 psi | 67% | 2703 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 80% | 39,842 psi | 60% | 2638 fps | 96.4% |
| ADI AR 2217 | <<locked>> | 86% | 36,187 psi | 54% | 2549 fps | 95.4% |
| ADI AR 2218 | <<locked>> | 98% | 47,863 psi | 72% | 2874 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 84% | 30,690 psi | 46% | 2451 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,962 psi | 67% | 2707 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,387 psi | 77% | 2818 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,512 psi | 67% | 2697 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,379 psi | 61% | 2644 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,001 psi | 58% | 2592 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,634 psi | 50% | 2520 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,048 psi | 66% | 2749 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 48,834 psi | 73% | 2864 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 47,384 psi | 71% | 2733 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 37,565 psi | 56% | 2579 fps | 96.8% |
| Bofors RP30 | <<locked>> | 84% | 35,810 psi | 54% | 2562 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 40,379 psi | 61% | 2644 fps | 97.8% |
| Bofors RP7 | <<locked>> | 80% | 54,969 psi | 82% | 2818 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 34,418 psi | 52% | 2510 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 55,042 psi | 83% | 2871 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,409 psi | 64% | 2644 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,684 psi | 62% | 2628 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,066 psi | 72% | 2694 fps | 100% |
| Hodgdon Retumbo | 66 gr | 80% | 32,793 psi | 49% | 2543 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 55,782 psi | 84% | 2904 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,007 psi | 42% | 1654 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,227 psi | 75% | 2749 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 56,333 psi | 84% | 2838 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 50,401 psi | 76% | 2756 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,656 psi | 65% | 2641 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 80% | 38,566 psi | 58% | 2618 fps | 96% |
| IMR 8133 Enduron | <<locked>> | 92% | 36,869 psi | 55% | 2605 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 53,606 psi | 80% | 2782 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,243 psi | 78% | 2782 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,403 psi | 52% | 2448 fps | 98.2% |
| Norma 204 | <<locked>> | 80% | 50,995 psi | 76% | 2802 fps | 99.5% |
| Norma 217 | <<locked>> | 88% | 32,097 psi | 48% | 2503 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 42,728 psi | 64% | 2713 fps | 99.3% |
| Norma URP | <<locked>> | 80% | 52,083 psi | 78% | 2799 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,377 psi | 58% | 2625 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 80% | 50,952 psi | 76% | 2802 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,214 psi | 51% | 2500 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,805 psi | 43% | 1693 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,708 psi | 81% | 2835 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,214 psi | 78% | 2858 fps | 100% |
| ReloadSwiss RS 76 | 70.7 gr | 80% | 31,995 psi | 48% | 2516 fps | 96.7% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 39,523 psi | 59% | 2671 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 45,411 psi | 68% | 2680 fps | 98% |
| Rottweil R 905 | <<locked>> | 80% | 43,976 psi | 66% | 2684 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 80% | 54,969 psi | 82% | 2818 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,606 psi | 80% | 2782 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,243 psi | 78% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,591 psi | 79% | 2736 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,642 psi | 65% | 2680 fps | 98.6% |
| Somchem S361 | <<locked>> | 80% | 46,296 psi | 69% | 2667 fps | 97.6% |
| Somchem S365 | <<locked>> | 80% | 49,501 psi | 74% | 2749 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,353 psi | 66% | 2664 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 80% | 53,519 psi | 80% | 2789 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,653 psi | 58% | 2539 fps | 97.8% |
| Vihtavuori N170 | <<locked>> | 94% | 53,069 psi | 80% | 2822 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 52,736 psi | 79% | 2795 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,453 psi | 65% | 2671 fps | 100% |
| Vihtavuori N560 | 68.5 gr | 80% | 42,598 psi | 64% | 2707 fps | 96.7% |
| Vihtavuori N565 | <<locked>> | 82% | 37,507 psi | 56% | 2579 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 88% | 40,828 psi | 61% | 2690 fps | 95% |
| Vihtavuori N570 | <<locked>> | 94% | 48,167 psi | 72% | 2874 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,997 psi | 79% | 2743 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 55,259 psi | 83% | 2871 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,564 psi | 55% | 2635 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,814 psi | 61% | 2592 fps | 97.9% |
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 73 powders for 7 mm STW loaded with the .284 | 160gr | Brenneke TAG. Vihtavuori N570 delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,077 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 160.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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 | 160gr | Brenneke TAG 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.