Load Specifications
Load data in caliber 7 mm STW with .284 | 154gr | Peregrine VLR-5 bullet and 75 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 Winchester StaBALL HD.
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>> | 92% | 56,536 psi | 85% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 57,464 psi | 86% | 2917 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 59,756 psi | 90% | 3051 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 90% | 58,566 psi | 88% | 2982 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 56,695 psi | 85% | 2989 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,824 psi | 82% | 2953 fps | 99.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,240 psi | 74% | 2913 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 58,755 psi | 88% | 2976 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 60,060 psi | 90% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 58,015 psi | 87% | 2969 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 92% | 56,840 psi | 85% | 2982 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 58,378 psi | 88% | 2949 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 58,146 psi | 87% | 3012 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 59,437 psi | 89% | 3038 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 51,909 psi | 78% | 2963 fps | 96.2% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 57,740 psi | 87% | 2946 fps | 97.5% |
| Bofors RP15 | <<locked>> | 96% | 59,886 psi | 90% | 3025 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 58,030 psi | 87% | 3025 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 56,840 psi | 85% | 2982 fps | 99.9% |
| Bofors RP7 | <<locked>> | 84% | 59,001 psi | 88% | 2917 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 56,434 psi | 85% | 2979 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 59,117 psi | 89% | 2972 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 57,696 psi | 86% | 2933 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 92% | 60,263 psi | 90% | 2986 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 59,016 psi | 88% | 2969 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 58,871 psi | 88% | 2894 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 57,159 psi | 86% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 56,188 psi | 84% | 2953 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,217 psi | 56% | 1864 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,595 psi | 86% | 2907 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 56,898 psi | 85% | 2887 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 57,725 psi | 87% | 2907 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,826 psi | 85% | 2907 fps | 99% |
| IMR 7828 SSC | <<locked>> | 94% | 58,711 psi | 88% | 3028 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,483 psi | 67% | 2808 fps | 97.7% |
| Lovex S065 | <<locked>> | 84% | 57,595 psi | 86% | 2884 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 59,625 psi | 89% | 2933 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 57,798 psi | 87% | 2904 fps | 100% |
| Norma 204 | <<locked>> | 86% | 59,016 psi | 88% | 2966 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 44,918 psi | 67% | 2838 fps | 99.4% |
| Norma MRP | <<locked>> | 90% | 56,826 psi | 85% | 3002 fps | 100% |
| Norma URP | <<locked>> | 86% | 59,480 psi | 89% | 2949 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 60,118 psi | 90% | 3054 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 86% | 58,624 psi | 88% | 2959 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 58,479 psi | 88% | 2979 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,043 psi | 57% | 1906 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 57,827 psi | 87% | 2940 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,333 psi | 84% | 2969 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 58,436 psi | 88% | 3091 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 57,653 psi | 86% | 3048 fps | 99% |
| Rottweil R 904 | <<locked>> | 90% | 59,408 psi | 89% | 2949 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 90% | 57,682 psi | 86% | 2959 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 84% | 59,001 psi | 88% | 2917 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 57,595 psi | 86% | 2884 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 59,625 psi | 89% | 2933 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 59,959 psi | 90% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,782 psi | 85% | 2838 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 57,261 psi | 86% | 2956 fps | 99.9% |
| Somchem S355 | <<locked>> | 82% | 60,191 psi | 90% | 2904 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 57,334 psi | 86% | 2887 fps | 99% |
| Somchem S365 | <<locked>> | 86% | 56,768 psi | 85% | 2900 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 58,015 psi | 87% | 2927 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 57,798 psi | 87% | 2825 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 57,522 psi | 86% | 2894 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 57,885 psi | 87% | 2910 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 56,594 psi | 85% | 2894 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 60,336 psi | 90% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,478 psi | 85% | 3002 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 96% | 56,884 psi | 85% | 2986 fps | 99.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 58,088 psi | 87% | 3048 fps | 98.7% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 54,984 psi | 82% | 3038 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 57,072 psi | 86% | 2841 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 59,364 psi | 89% | 2976 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 57,450 psi | 86% | 3031 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 58,276 psi | 87% | 2930 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% | 37,231 psi | 56% | 2549 fps | 98.5% |
| Accurate 4350 | <<locked>> | 80% | 49,908 psi | 75% | 2805 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 41,597 psi | 62% | 2726 fps | 95% |
| ADI AR 2209 | <<locked>> | 80% | 41,698 psi | 63% | 2687 fps | 97.5% |
| ADI AR 2213 | <<locked>> | 82% | 39,842 psi | 60% | 2677 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 90% | 38,740 psi | 58% | 2644 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 86% | 30,400 psi | 46% | 2474 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,892 psi | 72% | 2812 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 55,840 psi | 84% | 2927 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,626 psi | 62% | 2680 fps | 97.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,463 psi | 56% | 2621 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,071 psi | 54% | 2579 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,198 psi | 47% | 2490 fps | 97.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,393 psi | 61% | 2726 fps | 99.9% |
| Alliant Reloder-33 | <<locked>> | 98% | 48,051 psi | 72% | 2894 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 47,718 psi | 72% | 2772 fps | 95% |
| Bofors RP15 | <<locked>> | 80% | 34,751 psi | 52% | 2552 fps | 95% |
| Bofors RP30 | <<locked>> | 88% | 37,913 psi | 57% | 2651 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 37,463 psi | 56% | 2621 fps | 96.3% |
| Bofors RP7 | <<locked>> | 80% | 51,924 psi | 78% | 2808 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 36,767 psi | 55% | 2602 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 51,750 psi | 78% | 2861 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 54,041 psi | 81% | 2874 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 82% | 42,511 psi | 64% | 2684 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 82% | 41,785 psi | 63% | 2667 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,991 psi | 67% | 2690 fps | 100% |
| Hodgdon Retumbo | 66.9 gr | 84% | 34,867 psi | 52% | 2635 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 52,025 psi | 78% | 2890 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,920 psi | 42% | 1670 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,514 psi | 71% | 2746 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,330 psi | 80% | 2831 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 47,340 psi | 71% | 2749 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,234 psi | 62% | 2625 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 82% | 38,435 psi | 58% | 2654 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 96% | 38,667 psi | 58% | 2687 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 50,778 psi | 76% | 2779 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,168 psi | 74% | 2772 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 31,966 psi | 48% | 2425 fps | 96.9% |
| Norma 204 | <<locked>> | 80% | 47,935 psi | 72% | 2785 fps | 98.7% |
| Norma 217 | <<locked>> | 90% | 31,386 psi | 47% | 2523 fps | 95% |
| Norma MRP | <<locked>> | 80% | 39,566 psi | 59% | 2690 fps | 98.3% |
| Norma URP | <<locked>> | 80% | 48,776 psi | 73% | 2789 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 38,029 psi | 57% | 2657 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 47,834 psi | 72% | 2792 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 82% | 33,982 psi | 51% | 2533 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,543 psi | 43% | 1709 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,067 psi | 75% | 2825 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,515 psi | 73% | 2848 fps | 100% |
| ReloadSwiss RS 76 | 69.9 gr | 82% | 31,647 psi | 47% | 2539 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 41,945 psi | 63% | 2769 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 42,772 psi | 64% | 2664 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 80% | 40,944 psi | 61% | 2664 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 80% | 51,924 psi | 78% | 2808 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,778 psi | 76% | 2779 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,168 psi | 74% | 2772 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 56,362 psi | 84% | 2730 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,676 psi | 74% | 2730 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,611 psi | 61% | 2661 fps | 97.4% |
| Somchem S355 | <<locked>> | 80% | 56,362 psi | 84% | 2851 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 43,540 psi | 65% | 2651 fps | 96.2% |
| Somchem S365 | <<locked>> | 80% | 46,195 psi | 69% | 2746 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,452 psi | 62% | 2648 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 80% | 54,085 psi | 81% | 2772 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 50,270 psi | 75% | 2785 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,984 psi | 54% | 2520 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 80% | 49,603 psi | 74% | 2789 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,364 psi | 61% | 2654 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,581 psi | 59% | 2680 fps | 95% |
| Vihtavuori N565 | <<locked>> | 86% | 39,943 psi | 60% | 2674 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 92% | 43,294 psi | 65% | 2785 fps | 95.2% |
| Vihtavuori N570 | <<locked>> | 98% | 50,937 psi | 76% | 2966 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,603 psi | 74% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,750 psi | 78% | 2861 fps | 99.9% |
| Winchester StaBALL HD | 65.5 gr | 80% | 32,909 psi | 49% | 2605 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,927 psi | 57% | 2569 fps | 96.5% |
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 81 powders for 7 mm STW loaded with the .284 | 154gr | Peregrine VLR-5. Hodgdon Retumbo delivers the highest muzzle velocity at 3,094 fps; across all powders the maximum-charge window runs from 1,864 fps to 3,094 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 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 1:9.0 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, Winchester StaBALL HD rank at the top here: for 7 mm STW with the .284 | 154gr | Peregrine VLR-5 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, Alliant Reloder-50, IMR 7977 Enduron 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.