Load Specifications
Load data in caliber 7 mm STW with .284 | 160gr | Reichenberg Mag Drückjagd bullet and 72 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 56,666 psi | 85% | 2844 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,087 psi | 86% | 2864 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 59,843 psi | 90% | 3009 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 88% | 58,334 psi | 87% | 2936 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 56,768 psi | 85% | 2949 fps | 99.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 59,190 psi | 89% | 2979 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 51,416 psi | 77% | 2946 fps | 96.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 53,417 psi | 80% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 58,639 psi | 88% | 2923 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 57,812 psi | 87% | 2923 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,985 psi | 85% | 2943 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,682 psi | 88% | 2904 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 58,987 psi | 88% | 2972 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 59,582 psi | 89% | 2989 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 56,797 psi | 85% | 3002 fps | 97.8% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 57,537 psi | 86% | 2907 fps | 98% |
| Bofors RP15 | <<locked>> | 94% | 59,944 psi | 90% | 2982 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 58,450 psi | 88% | 2982 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 56,985 psi | 85% | 2943 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 58,494 psi | 88% | 2867 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 56,782 psi | 85% | 2943 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 58,842 psi | 88% | 2923 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 60,060 psi | 90% | 2943 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,813 psi | 88% | 2927 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 58,595 psi | 88% | 2844 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 57,812 psi | 87% | 3058 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 59,988 psi | 90% | 2963 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,405 psi | 56% | 1844 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,130 psi | 86% | 2858 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 59,828 psi | 90% | 2887 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,493 psi | 86% | 2858 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 60,249 psi | 90% | 2920 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 92% | 58,827 psi | 88% | 2986 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,747 psi | 73% | 2844 fps | 99% |
| Lovex S065 | <<locked>> | 82% | 57,217 psi | 86% | 2835 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 59,176 psi | 89% | 2887 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 58,102 psi | 87% | 2861 fps | 100% |
| Norma 204 | <<locked>> | 84% | 58,479 psi | 88% | 2917 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 49,443 psi | 74% | 2867 fps | 100% |
| Norma MRP | <<locked>> | 88% | 57,145 psi | 86% | 2956 fps | 100% |
| Norma URP | <<locked>> | 84% | 59,205 psi | 89% | 2900 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 60,336 psi | 90% | 3012 fps | 100% |
| Ramshot Hunter | <<locked>> | 84% | 58,276 psi | 87% | 2910 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 58,682 psi | 88% | 2936 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,421 psi | 58% | 1890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,421 psi | 86% | 2887 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 60,365 psi | 90% | 2976 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 59,176 psi | 89% | 3051 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 58,218 psi | 87% | 3009 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 88% | 58,987 psi | 88% | 2904 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 88% | 57,580 psi | 86% | 2917 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 58,494 psi | 88% | 2867 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,217 psi | 86% | 2835 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 59,176 psi | 89% | 2887 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 59,886 psi | 90% | 2841 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 57,174 psi | 86% | 2910 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 56,811 psi | 85% | 2841 fps | 99.3% |
| Somchem S365 | <<locked>> | 84% | 56,797 psi | 85% | 2851 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,798 psi | 87% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 57,014 psi | 85% | 2838 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,783 psi | 87% | 2867 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 56,782 psi | 85% | 2881 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 84% | 60,191 psi | 90% | 2897 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,579 psi | 85% | 2877 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 56,666 psi | 85% | 2959 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 94% | 57,217 psi | 86% | 2946 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 98% | 58,885 psi | 88% | 3012 fps | 99.2% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 59,959 psi | 90% | 3071 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,594 psi | 85% | 2792 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,842 psi | 88% | 2923 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 58,668 psi | 88% | 2989 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 58,044 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% | 40,074 psi | 60% | 2569 fps | 99.4% |
| Accurate 4350 | <<locked>> | 80% | 53,345 psi | 80% | 2812 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 41,655 psi | 62% | 2687 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 44,425 psi | 67% | 2700 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 80% | 39,755 psi | 60% | 2635 fps | 96.3% |
| ADI AR 2217 | <<locked>> | 86% | 36,129 psi | 54% | 2549 fps | 95.3% |
| ADI AR 2218 | <<locked>> | 98% | 47,790 psi | 72% | 2871 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 84% | 30,618 psi | 46% | 2448 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,314 psi | 77% | 2818 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,454 psi | 67% | 2697 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,321 psi | 60% | 2641 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,073 psi | 59% | 2592 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,547 psi | 50% | 2516 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,947 psi | 66% | 2749 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 48,733 psi | 73% | 2864 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 47,311 psi | 71% | 2733 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 37,478 psi | 56% | 2579 fps | 96.7% |
| Bofors RP30 | <<locked>> | 84% | 35,882 psi | 54% | 2562 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 40,321 psi | 60% | 2641 fps | 97.8% |
| Bofors RP7 | <<locked>> | 80% | 54,868 psi | 82% | 2815 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 34,345 psi | 51% | 2507 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 54,940 psi | 82% | 2867 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,322 psi | 63% | 2638 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,626 psi | 62% | 2625 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,964 psi | 72% | 2694 fps | 100% |
| Hodgdon Retumbo | 65.9 gr | 80% | 32,706 psi | 49% | 2539 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 55,695 psi | 83% | 2904 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,050 psi | 42% | 1654 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,154 psi | 75% | 2749 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 56,231 psi | 84% | 2835 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 50,473 psi | 76% | 2756 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,569 psi | 65% | 2638 fps | 97% |
| IMR 7828 SSC | <<locked>> | 80% | 38,464 psi | 58% | 2615 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 92% | 36,796 psi | 55% | 2602 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 53,737 psi | 81% | 2782 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,141 psi | 78% | 2779 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,301 psi | 51% | 2444 fps | 98.2% |
| Norma 204 | <<locked>> | 80% | 50,894 psi | 76% | 2799 fps | 99.4% |
| Norma 217 | <<locked>> | 88% | 32,024 psi | 48% | 2500 fps | 96% |
| Norma MRP | <<locked>> | 80% | 42,641 psi | 64% | 2710 fps | 99.3% |
| Norma URP | <<locked>> | 80% | 51,967 psi | 78% | 2799 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,290 psi | 57% | 2621 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 80% | 50,894 psi | 76% | 2799 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,142 psi | 51% | 2497 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,689 psi | 43% | 1690 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,606 psi | 80% | 2835 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,344 psi | 78% | 2861 fps | 100% |
| ReloadSwiss RS 76 | 70.6 gr | 80% | 31,923 psi | 48% | 2513 fps | 96.6% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 39,436 psi | 59% | 2667 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 45,527 psi | 68% | 2680 fps | 98% |
| Rottweil R 905 | <<locked>> | 80% | 43,874 psi | 66% | 2684 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 80% | 54,868 psi | 82% | 2815 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,737 psi | 81% | 2782 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,141 psi | 78% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,460 psi | 79% | 2736 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,540 psi | 65% | 2680 fps | 98.6% |
| Somchem S361 | <<locked>> | 80% | 46,398 psi | 70% | 2667 fps | 97.6% |
| Somchem S365 | <<locked>> | 80% | 49,429 psi | 74% | 2749 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,251 psi | 66% | 2661 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 80% | 53,432 psi | 80% | 2789 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,566 psi | 58% | 2539 fps | 97.8% |
| Vihtavuori N170 | <<locked>> | 94% | 53,011 psi | 79% | 2818 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 52,634 psi | 79% | 2792 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,337 psi | 65% | 2667 fps | 100% |
| Vihtavuori N560 | 68.4 gr | 80% | 42,496 psi | 64% | 2703 fps | 96.7% |
| Vihtavuori N565 | <<locked>> | 82% | 37,434 psi | 56% | 2575 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 88% | 40,756 psi | 61% | 2687 fps | 95% |
| Vihtavuori N570 | <<locked>> | 94% | 48,095 psi | 72% | 2871 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,910 psi | 79% | 2743 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 55,172 psi | 83% | 2871 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,477 psi | 55% | 2631 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,756 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 72 powders for 7 mm STW loaded with the .284 | 160gr | Reichenberg Mag Drückjagd. Vihtavuori N570 delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,844 fps to 3,071 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 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 | Reichenberg Mag Drückjagd 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.