Load Specifications
Load data in caliber 7 mm STW with .284 | 168gr | Berger VLD Hunting bullet and 71 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 ReloadSwiss RS 80.
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% | 58,624 psi | 88% | 2805 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 59,045 psi | 89% | 2822 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 57,725 psi | 87% | 2913 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 88% | 60,176 psi | 90% | 2894 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 58,378 psi | 88% | 2907 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 98% | 56,898 psi | 85% | 2884 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,113 psi | 80% | 2920 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,448 psi | 83% | 2900 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 60,118 psi | 90% | 2887 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 60,278 psi | 90% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 59,422 psi | 89% | 2881 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 58,711 psi | 88% | 2900 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 56,811 psi | 85% | 2812 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 56,782 psi | 85% | 2877 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 57,493 psi | 86% | 2897 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 58,929 psi | 88% | 2972 fps | 98.5% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 50,024 psi | 75% | 2822 fps | 96.2% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 58,827 psi | 88% | 2867 fps | 98.5% |
| Bofors RP15 | <<locked>> | 92% | 57,856 psi | 87% | 2887 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 56,550 psi | 85% | 2894 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 58,711 psi | 88% | 2900 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 59,915 psi | 90% | 2822 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 58,552 psi | 88% | 2904 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 60,350 psi | 90% | 2877 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 57,667 psi | 86% | 2844 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 60,350 psi | 90% | 2881 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 60,321 psi | 90% | 2795 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 59,785 psi | 90% | 3018 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,565 psi | 56% | 1798 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 58,639 psi | 88% | 2812 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 59,321 psi | 89% | 2812 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,044 psi | 87% | 2822 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 90% | 56,579 psi | 85% | 2887 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,734 psi | 76% | 2822 fps | 99.5% |
| Lovex S065 | <<locked>> | 82% | 58,697 psi | 88% | 2785 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 57,130 psi | 86% | 2789 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 60,365 psi | 90% | 2825 fps | 100% |
| Norma 204 | <<locked>> | 84% | 60,017 psi | 90% | 2871 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 51,619 psi | 77% | 2844 fps | 100% |
| Norma MRP | <<locked>> | 88% | 58,987 psi | 88% | 2917 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,101 psi | 86% | 2805 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 57,885 psi | 87% | 2910 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 59,886 psi | 90% | 2864 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,333 psi | 84% | 2841 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,667 psi | 58% | 1841 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 59,451 psi | 89% | 2848 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 57,986 psi | 87% | 2874 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,594 psi | 85% | 2953 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 55,956 psi | 84% | 2917 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 86% | 56,913 psi | 85% | 2808 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 88% | 59,335 psi | 89% | 2874 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 59,915 psi | 90% | 2822 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 58,697 psi | 88% | 2785 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,130 psi | 86% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 57,711 psi | 87% | 2743 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 58,929 psi | 88% | 2871 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 58,320 psi | 87% | 2799 fps | 99.6% |
| Somchem S365 | <<locked>> | 84% | 58,697 psi | 88% | 2808 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 59,669 psi | 89% | 2841 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 58,595 psi | 88% | 2792 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 59,466 psi | 89% | 2825 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 58,726 psi | 88% | 2851 fps | 96.9% |
| Vihtavuori N550 | <<locked>> | 82% | 58,030 psi | 87% | 2802 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 58,798 psi | 88% | 2838 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 58,378 psi | 88% | 2920 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 94% | 59,219 psi | 89% | 2910 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 96% | 56,652 psi | 85% | 2920 fps | 99.1% |
| Vihtavuori N570 | <<locked>> | 98% | 57,754 psi | 87% | 2979 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 58,146 psi | 87% | 2743 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 56,536 psi | 85% | 2897 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 59,727 psi | 90% | 2841 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% | 41,916 psi | 63% | 2546 fps | 99.8% |
| Accurate 4350 | <<locked>> | 80% | 55,187 psi | 83% | 2769 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 43,482 psi | 65% | 2664 fps | 96.8% |
| ADI AR 2209 | <<locked>> | 80% | 46,006 psi | 69% | 2671 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 80% | 41,191 psi | 62% | 2612 fps | 97.2% |
| ADI AR 2217 | <<locked>> | 84% | 35,201 psi | 53% | 2474 fps | 95.5% |
| ADI AR 2218 | <<locked>> | 96% | 45,919 psi | 69% | 2779 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 80% | 28,181 psi | 42% | 2323 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,267 psi | 69% | 2667 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 52,924 psi | 79% | 2776 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,832 psi | 69% | 2661 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 41,887 psi | 63% | 2615 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 40,814 psi | 61% | 2566 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,186 psi | 53% | 2500 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 45,847 psi | 69% | 2720 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 46,992 psi | 70% | 2776 fps | 95.9% |
| Alliant Reloder-50 | <<locked>> | 98% | 46,441 psi | 70% | 2759 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 45,672 psi | 68% | 2641 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 38,972 psi | 58% | 2556 fps | 97.7% |
| Bofors RP30 | <<locked>> | 82% | 35,012 psi | 52% | 2487 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 41,887 psi | 63% | 2615 fps | 98.5% |
| Bofors RP7 | <<locked>> | 80% | 56,449 psi | 85% | 2772 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 33,446 psi | 50% | 2431 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 56,536 psi | 85% | 2825 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 43,947 psi | 66% | 2615 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,018 psi | 64% | 2595 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 49,792 psi | 75% | 2654 fps | 100% |
| Hodgdon Retumbo | 64.3 gr | 80% | 34,374 psi | 52% | 2533 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,166 psi | 42% | 1608 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,648 psi | 77% | 2710 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,098 psi | 78% | 2713 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,976 psi | 67% | 2605 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 80% | 39,943 psi | 60% | 2592 fps | 96.9% |
| IMR 8133 Enduron | <<locked>> | 90% | 36,071 psi | 54% | 2533 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 55,317 psi | 83% | 2740 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 53,635 psi | 80% | 2736 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,245 psi | 54% | 2431 fps | 99% |
| Norma 204 | <<locked>> | 80% | 52,402 psi | 79% | 2759 fps | 99.7% |
| Norma 217 | <<locked>> | 84% | 29,530 psi | 44% | 2379 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 44,454 psi | 67% | 2687 fps | 99.7% |
| Norma URP | <<locked>> | 80% | 53,461 psi | 80% | 2753 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 39,987 psi | 60% | 2602 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 80% | 52,460 psi | 79% | 2759 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 35,911 psi | 54% | 2484 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,037 psi | 44% | 1650 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 55,477 psi | 83% | 2795 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 53,954 psi | 81% | 2818 fps | 100% |
| ReloadSwiss RS 76 | 68.8 gr | 80% | 33,533 psi | 50% | 2507 fps | 97.9% |
| ReloadSwiss RS 80 | 74.6 gr | 86% | 38,319 psi | 57% | 2592 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 46,789 psi | 70% | 2644 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 80% | 45,600 psi | 68% | 2657 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 80% | 56,449 psi | 85% | 2772 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 55,317 psi | 83% | 2740 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 53,635 psi | 80% | 2736 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,128 psi | 81% | 2694 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,252 psi | 68% | 2651 fps | 99.1% |
| Somchem S361 | <<locked>> | 80% | 47,805 psi | 72% | 2635 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 51,314 psi | 77% | 2710 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 45,876 psi | 69% | 2631 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 54,911 psi | 82% | 2743 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 40,016 psi | 60% | 2510 fps | 98.5% |
| Vihtavuori N170 | <<locked>> | 92% | 51,184 psi | 77% | 2730 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 54,230 psi | 81% | 2749 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 45,281 psi | 68% | 2638 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,193 psi | 66% | 2677 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 80% | 36,753 psi | 55% | 2503 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 86% | 39,581 psi | 59% | 2608 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 92% | 46,499 psi | 70% | 2782 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 54,346 psi | 81% | 2697 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 38,479 psi | 58% | 2615 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,279 psi | 63% | 2562 fps | 98.5% |
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 71 powders for 7 mm STW loaded with the .284 | 168gr | Berger VLD Hunting. Hodgdon Retumbo delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,798 fps to 3,018 fps. ADI AR 2218 gives the best case fill at 100 %, and 71 of the 71 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 168.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, 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, ReloadSwiss RS 80 rank at the top here: for 7 mm STW with the .284 | 168gr | Berger VLD Hunting 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.