Load Specifications
Load data in caliber 7 mm STW with .284 | 175gr | Nosler AccuBond Long Range bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N165, Hodgdon Retumbo 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% | 59,408 psi | 89% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 59,843 psi | 90% | 2779 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 57,421 psi | 86% | 2864 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 88% | 58,436 psi | 88% | 2874 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 86% | 56,913 psi | 85% | 2799 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 59,234 psi | 89% | 2867 fps | 100% |
| ADI AR 2217 | <<locked>> | 98% | 57,740 psi | 87% | 2844 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,969 psi | 81% | 2890 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 56,202 psi | 84% | 2861 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 57,174 psi | 86% | 2795 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,043 psi | 86% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 60,118 psi | 90% | 2838 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 59,567 psi | 89% | 2858 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,508 psi | 86% | 2769 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 57,537 psi | 86% | 2838 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 58,218 psi | 87% | 2854 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 59,785 psi | 90% | 2940 fps | 98.9% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 50,981 psi | 76% | 2795 fps | 96.8% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 59,553 psi | 89% | 2828 fps | 98.8% |
| Bofors RP15 | <<locked>> | 92% | 58,711 psi | 88% | 2848 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 57,348 psi | 86% | 2851 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 59,567 psi | 89% | 2858 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 59,422 psi | 89% | 2864 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 58,160 psi | 87% | 2802 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 57,203 psi | 86% | 2785 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,145 psi | 86% | 2703 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 56,550 psi | 85% | 2920 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,739 psi | 57% | 1759 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 59,103 psi | 89% | 2769 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 60,089 psi | 90% | 2769 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,639 psi | 88% | 2782 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 90% | 57,435 psi | 86% | 2848 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,605 psi | 77% | 2785 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 59,277 psi | 89% | 2743 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 57,769 psi | 87% | 2746 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 57,217 psi | 86% | 2736 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,768 psi | 85% | 2776 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 52,591 psi | 79% | 2808 fps | 100% |
| Norma MRP | <<locked>> | 88% | 59,640 psi | 89% | 2874 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,783 psi | 87% | 2759 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 58,929 psi | 88% | 2874 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 56,753 psi | 85% | 2769 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 57,232 psi | 86% | 2805 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,667 psi | 58% | 1801 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 60,104 psi | 90% | 2802 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 58,726 psi | 88% | 2831 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 57,711 psi | 87% | 2913 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 56,898 psi | 85% | 2881 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 86% | 57,450 psi | 86% | 2766 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 88% | 60,031 psi | 90% | 2831 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 59,277 psi | 89% | 2743 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,769 psi | 87% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 58,363 psi | 87% | 2703 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 59,625 psi | 89% | 2828 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 59,045 psi | 89% | 2759 fps | 99.7% |
| Somchem S365 | <<locked>> | 84% | 59,321 psi | 89% | 2759 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,579 psi | 85% | 2749 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 59,321 psi | 89% | 2749 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 60,307 psi | 90% | 2785 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 59,350 psi | 89% | 2812 fps | 97.4% |
| Vihtavuori N550 | <<locked>> | 82% | 58,508 psi | 88% | 2756 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 59,466 psi | 89% | 2795 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 59,059 psi | 89% | 2881 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 94% | 60,031 psi | 90% | 2874 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 96% | 57,406 psi | 86% | 2881 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 98% | 58,595 psi | 88% | 2940 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 58,813 psi | 88% | 2700 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 57,450 psi | 86% | 2854 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 60,307 psi | 90% | 2799 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% | 42,467 psi | 64% | 2510 fps | 99.9% |
| Accurate 4350 | <<locked>> | 80% | 55,883 psi | 84% | 2726 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 46,659 psi | 70% | 2690 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 80% | 44,048 psi | 66% | 2631 fps | 97.3% |
| ADI AR 2209 | <<locked>> | 80% | 46,557 psi | 70% | 2631 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 80% | 41,771 psi | 63% | 2575 fps | 97.8% |
| ADI AR 2217 | <<locked>> | 82% | 33,344 psi | 50% | 2385 fps | 95.1% |
| ADI AR 2218 | <<locked>> | 96% | 46,528 psi | 70% | 2749 fps | 96% |
| ADI AR 2225 | <<locked>> | 80% | 28,587 psi | 43% | 2297 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,833 psi | 70% | 2631 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,519 psi | 80% | 2730 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,398 psi | 70% | 2625 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,482 psi | 64% | 2582 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,379 psi | 62% | 2526 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,694 psi | 54% | 2467 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,746 psi | 70% | 2687 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 44,237 psi | 66% | 2677 fps | 95.4% |
| Alliant Reloder-50 | <<locked>> | 98% | 47,282 psi | 71% | 2730 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 43,265 psi | 65% | 2549 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 39,668 psi | 59% | 2523 fps | 98.2% |
| Bofors RP30 | <<locked>> | 80% | 33,156 psi | 50% | 2398 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 42,482 psi | 64% | 2582 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 80% | 33,924 psi | 51% | 2402 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 80% | 44,353 psi | 66% | 2575 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,584 psi | 65% | 2562 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,314 psi | 75% | 2612 fps | 100% |
| Hodgdon Retumbo | 63.2 gr | 80% | 34,896 psi | 52% | 2503 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,326 psi | 42% | 1575 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,199 psi | 78% | 2667 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,678 psi | 79% | 2671 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,498 psi | 68% | 2569 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 80% | 40,524 psi | 61% | 2559 fps | 97.5% |
| IMR 8133 Enduron | <<locked>> | 88% | 34,185 psi | 51% | 2444 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 55,825 psi | 84% | 2697 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 54,360 psi | 81% | 2697 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,680 psi | 55% | 2395 fps | 99.3% |
| Norma 204 | <<locked>> | 80% | 53,098 psi | 80% | 2720 fps | 99.9% |
| Norma 217 | <<locked>> | 84% | 30,066 psi | 45% | 2356 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 45,165 psi | 68% | 2651 fps | 99.9% |
| Norma URP | <<locked>> | 80% | 54,288 psi | 81% | 2713 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,509 psi | 61% | 2569 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 80% | 53,156 psi | 80% | 2720 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,390 psi | 55% | 2454 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,051 psi | 44% | 1611 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 56,304 psi | 84% | 2753 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 54,578 psi | 82% | 2776 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 33,997 psi | 51% | 2480 fps | 98.5% |
| ReloadSwiss RS 80 | 73.3 gr | 86% | 38,943 psi | 58% | 2562 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 47,485 psi | 71% | 2608 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 80% | 46,151 psi | 69% | 2618 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 55,825 psi | 84% | 2697 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 54,360 psi | 81% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,650 psi | 82% | 2651 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,803 psi | 69% | 2615 fps | 99.4% |
| Somchem S361 | <<locked>> | 80% | 48,269 psi | 72% | 2595 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 51,982 psi | 78% | 2664 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,470 psi | 70% | 2592 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 55,535 psi | 83% | 2700 fps | 100% |
| Vihtavuori N165 | 62.8 gr | 80% | 40,538 psi | 61% | 2477 fps | 98.9% |
| Vihtavuori N170 | <<locked>> | 92% | 51,808 psi | 78% | 2697 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 54,897 psi | 82% | 2707 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 45,847 psi | 69% | 2598 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,875 psi | 67% | 2644 fps | 98% |
| Vihtavuori N565 | <<locked>> | 80% | 37,333 psi | 56% | 2477 fps | 96.1% |
| Vihtavuori N568 | <<locked>> | 86% | 40,263 psi | 60% | 2579 fps | 95.8% |
| Vihtavuori N570 | <<locked>> | 92% | 47,253 psi | 71% | 2753 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 54,940 psi | 82% | 2651 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 39,291 psi | 59% | 2582 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,844 psi | 64% | 2530 fps | 98.9% |
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 69 powders for 7 mm STW loaded with the .284 | 175gr | Nosler AccuBond Long Range. Alliant Reloder-33 delivers the highest muzzle velocity at 2,940 fps; across all powders the maximum-charge window runs from 1,759 fps to 2,940 fps. ADI AR 2218 gives the best case fill at 100 %, and 69 of the 69 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (460 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:9.0 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. Vihtavuori N165, Hodgdon Retumbo, ReloadSwiss RS 80 rank at the top here: for 7 mm STW with the .284 | 175gr | Nosler AccuBond Long Range 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.