Load Specifications
Load data in caliber 7 mm STW with .284 | 162gr | Hornady ELD Match 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% | 56,695 psi | 85% | 2822 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,174 psi | 86% | 2844 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 59,567 psi | 89% | 2982 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 88% | 58,073 psi | 87% | 2907 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 56,405 psi | 85% | 2920 fps | 99.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 58,668 psi | 88% | 2949 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 51,053 psi | 77% | 2917 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 53,113 psi | 80% | 2913 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 58,320 psi | 87% | 2897 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 57,653 psi | 86% | 2900 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,768 psi | 85% | 2917 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,378 psi | 88% | 2877 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 58,537 psi | 88% | 2949 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 59,524 psi | 89% | 2972 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 56,376 psi | 85% | 2979 fps | 97.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 57,203 psi | 86% | 2881 fps | 97.9% |
| Bofors RP15 | <<locked>> | 94% | 59,770 psi | 90% | 2959 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 58,320 psi | 87% | 2963 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 56,768 psi | 85% | 2917 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 58,291 psi | 87% | 2841 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 56,246 psi | 84% | 2913 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 82% | 58,523 psi | 88% | 2897 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 59,509 psi | 89% | 2913 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,494 psi | 88% | 2897 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 58,465 psi | 88% | 2818 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 57,406 psi | 86% | 3031 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 59,611 psi | 89% | 2936 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,579 psi | 56% | 1827 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,014 psi | 85% | 2831 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 59,799 psi | 90% | 2864 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,508 psi | 86% | 2838 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 59,915 psi | 90% | 2890 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 92% | 58,479 psi | 88% | 2959 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,486 psi | 73% | 2825 fps | 98.9% |
| Lovex S065 | <<locked>> | 82% | 57,087 psi | 86% | 2808 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 59,176 psi | 89% | 2861 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 58,160 psi | 87% | 2841 fps | 100% |
| Norma 204 | <<locked>> | 84% | 58,218 psi | 87% | 2890 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 49,197 psi | 74% | 2848 fps | 100% |
| Norma MRP | <<locked>> | 88% | 56,913 psi | 85% | 2936 fps | 100% |
| Norma URP | <<locked>> | 84% | 59,074 psi | 89% | 2877 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 59,857 psi | 90% | 2982 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 58,088 psi | 87% | 2887 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 58,276 psi | 87% | 2913 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,479 psi | 58% | 1867 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,537 psi | 86% | 2867 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 60,147 psi | 90% | 2949 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 58,552 psi | 88% | 3025 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 57,928 psi | 87% | 2986 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 88% | 58,755 psi | 88% | 2877 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 88% | 57,421 psi | 86% | 2890 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 58,291 psi | 87% | 2841 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,087 psi | 86% | 2808 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 59,176 psi | 89% | 2861 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 59,915 psi | 90% | 2818 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 57,014 psi | 85% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 56,681 psi | 85% | 2818 fps | 99.2% |
| Somchem S365 | <<locked>> | 84% | 56,724 psi | 85% | 2828 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,827 psi | 87% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 56,855 psi | 85% | 2815 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,624 psi | 86% | 2844 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 56,681 psi | 85% | 2858 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 84% | 59,988 psi | 90% | 2871 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,565 psi | 85% | 2858 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 60,321 psi | 90% | 2995 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 94% | 56,956 psi | 85% | 2923 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 98% | 58,392 psi | 88% | 2986 fps | 99.1% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 59,480 psi | 89% | 3045 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,449 psi | 85% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,726 psi | 88% | 2900 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 58,131 psi | 87% | 2966 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 57,653 psi | 86% | 2854 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% | 40,567 psi | 61% | 2559 fps | 99.5% |
| Accurate 4350 | <<locked>> | 80% | 53,621 psi | 80% | 2792 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 41,858 psi | 63% | 2671 fps | 95.8% |
| ADI AR 2209 | <<locked>> | 80% | 44,440 psi | 67% | 2680 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 80% | 39,900 psi | 60% | 2618 fps | 96.4% |
| ADI AR 2217 | <<locked>> | 86% | 36,361 psi | 55% | 2536 fps | 95.4% |
| ADI AR 2218 | <<locked>> | 98% | 47,442 psi | 71% | 2844 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 82% | 28,979 psi | 43% | 2379 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,111 psi | 77% | 2795 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,527 psi | 67% | 2677 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,524 psi | 61% | 2628 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,204 psi | 59% | 2579 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,808 psi | 51% | 2507 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,947 psi | 66% | 2733 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 48,269 psi | 72% | 2838 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 47,210 psi | 71% | 2707 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 37,695 psi | 56% | 2566 fps | 96.8% |
| Bofors RP30 | <<locked>> | 84% | 35,984 psi | 54% | 2549 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 40,524 psi | 61% | 2628 fps | 97.8% |
| Bofors RP7 | <<locked>> | 80% | 54,868 psi | 82% | 2792 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 34,534 psi | 52% | 2493 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 54,810 psi | 82% | 2844 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,467 psi | 64% | 2621 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,771 psi | 63% | 2608 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,138 psi | 72% | 2674 fps | 100% |
| Hodgdon Retumbo | 63.9 gr | 80% | 33,011 psi | 49% | 2533 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 55,535 psi | 83% | 2877 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,123 psi | 42% | 1634 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,140 psi | 75% | 2726 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 56,130 psi | 84% | 2812 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 50,401 psi | 76% | 2733 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,671 psi | 65% | 2618 fps | 97% |
| IMR 7828 SSC | <<locked>> | 80% | 38,464 psi | 58% | 2598 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 92% | 36,883 psi | 55% | 2589 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 53,780 psi | 81% | 2762 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,257 psi | 78% | 2759 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,867 psi | 52% | 2438 fps | 98.4% |
| Norma 204 | <<locked>> | 80% | 50,807 psi | 76% | 2776 fps | 99.4% |
| Norma 217 | <<locked>> | 86% | 30,240 psi | 45% | 2438 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 42,757 psi | 64% | 2697 fps | 99.3% |
| Norma URP | <<locked>> | 80% | 51,996 psi | 78% | 2776 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,377 psi | 58% | 2608 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 80% | 50,792 psi | 76% | 2779 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,418 psi | 52% | 2487 fps | 96.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,805 psi | 43% | 1670 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,650 psi | 80% | 2812 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,054 psi | 78% | 2835 fps | 100% |
| ReloadSwiss RS 76 | 68.4 gr | 80% | 32,184 psi | 48% | 2503 fps | 96.8% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 39,320 psi | 59% | 2654 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 45,527 psi | 68% | 2661 fps | 98% |
| Rottweil R 905 | <<locked>> | 80% | 44,005 psi | 66% | 2667 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 80% | 54,868 psi | 82% | 2792 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,780 psi | 81% | 2762 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,257 psi | 78% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,634 psi | 79% | 2713 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,671 psi | 65% | 2661 fps | 98.6% |
| Somchem S361 | <<locked>> | 80% | 46,354 psi | 69% | 2648 fps | 97.5% |
| Somchem S365 | <<locked>> | 80% | 49,501 psi | 74% | 2730 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,527 psi | 67% | 2644 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 80% | 53,461 psi | 80% | 2769 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,798 psi | 58% | 2523 fps | 97.9% |
| Vihtavuori N170 | <<locked>> | 94% | 52,881 psi | 79% | 2799 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 52,591 psi | 79% | 2769 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,598 psi | 65% | 2654 fps | 100% |
| Vihtavuori N560 | 66.3 gr | 80% | 42,583 psi | 64% | 2687 fps | 96.7% |
| Vihtavuori N565 | <<locked>> | 82% | 37,753 psi | 57% | 2566 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 90% | 43,729 psi | 66% | 2733 fps | 96% |
| Vihtavuori N570 | <<locked>> | 94% | 47,790 psi | 72% | 2848 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,721 psi | 79% | 2717 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 55,027 psi | 82% | 2848 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,506 psi | 55% | 2621 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,828 psi | 61% | 2572 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 78 powders for 7 mm STW loaded with the .284 | 162gr | Hornady ELD Match. Vihtavuori N570 delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,045 fps. Accurate 8700 gives the best case fill at 100 %, and 78 of the 78 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 162.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, ADI AR 2217, ADI AR 2218 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 | 162gr | Hornady ELD Match they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 8700, IMR 7977 Enduron, Lovex D100 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.