Load Specifications
Bullet:.284 | 175gr | Hornady ELD-X
Bullet Manufacturer:Hornady
Bullet Weight:175 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7 mm STW load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:97 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:66,717 psi
Recommended Twist Rate:1:9.0
Load data in caliber 7 mm STW with .284 | 175gr | Hornady ELD-X bullet and 141 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 58,740 psi | 88% | 2753 fps | 100% |
| Accurate 3100 | <<locked>> | 90% | 59,480 psi | 89% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 59,292 psi | 89% | 2769 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 59,886 psi | 90% | 2779 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 56,739 psi | 85% | 2854 fps | 99.9% |
| Accurate High Country | <<locked>> | 86% | 57,464 psi | 86% | 2867 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 88% | 57,769 psi | 87% | 2864 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 88% | 58,479 psi | 88% | 2874 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 88% | 60,191 psi | 90% | 2841 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 56,956 psi | 85% | 2795 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 58,537 psi | 88% | 2858 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 90% | 59,016 psi | 88% | 2864 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 98% | 56,855 psi | 85% | 2828 fps | 100% |
| ADI AR 2217 | <<locked>> | 98% | 57,537 psi | 86% | 2841 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,258 psi | 80% | 2874 fps | 97.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 54,027 psi | 81% | 2894 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,332 psi | 83% | 2851 fps | 100% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 56,246 psi | 84% | 2861 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 56,478 psi | 85% | 2782 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 56,985 psi | 85% | 2792 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 56,492 psi | 85% | 2772 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,101 psi | 86% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 59,683 psi | 89% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 60,176 psi | 90% | 2838 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 58,885 psi | 88% | 2848 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 59,364 psi | 89% | 2858 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 56,826 psi | 85% | 2759 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,305 psi | 86% | 2766 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 57,072 psi | 86% | 2831 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 57,580 psi | 86% | 2835 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 57,522 psi | 86% | 2844 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 58,276 psi | 87% | 2854 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 58,900 psi | 88% | 2927 fps | 98.7% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 59,814 psi | 90% | 2936 fps | 98.9% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 50,227 psi | 75% | 2782 fps | 96.6% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 50,792 psi | 76% | 2792 fps | 96.8% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 59,045 psi | 89% | 2818 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 59,553 psi | 89% | 2828 fps | 98.8% |
| Bofors RP15 | <<locked>> | 92% | 58,044 psi | 87% | 2838 fps | 100% |
| Bofors RP15 | <<locked>> | 92% | 58,769 psi | 88% | 2848 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 56,681 psi | 85% | 2844 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 57,392 psi | 86% | 2854 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 58,885 psi | 88% | 2848 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 59,364 psi | 89% | 2858 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 60,046 psi | 90% | 2766 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 58,508 psi | 88% | 2851 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 59,219 psi | 89% | 2861 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 57,754 psi | 87% | 2792 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 88% | 58,175 psi | 87% | 2802 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 56,550 psi | 85% | 2776 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 88% | 57,217 psi | 86% | 2789 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 60,336 psi | 90% | 2743 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,217 psi | 86% | 2703 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 59,988 psi | 90% | 2966 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 56,623 psi | 85% | 2923 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,608 psi | 56% | 1755 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,739 psi | 57% | 1759 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 58,682 psi | 88% | 2759 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 59,161 psi | 89% | 2769 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 59,350 psi | 89% | 2759 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 59,886 psi | 90% | 2766 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,030 psi | 87% | 2769 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,450 psi | 88% | 2776 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 90% | 56,695 psi | 85% | 2838 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 90% | 57,450 psi | 86% | 2851 fps | 99.9% |
| IMR 7977 Enduron | <<locked>> | 96% | 60,292 psi | 90% | 2769 fps | 95.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,749 psi | 76% | 2772 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,416 psi | 77% | 2782 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 58,813 psi | 88% | 2733 fps | 100% |
| Lovex S065 | <<locked>> | 82% | 59,292 psi | 89% | 2743 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 57,305 psi | 86% | 2736 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 57,812 psi | 87% | 2746 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 60,234 psi | 90% | 2772 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 57,232 psi | 86% | 2733 fps | 100% |
| Norma 204 | <<locked>> | 84% | 60,220 psi | 90% | 2822 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,782 psi | 85% | 2776 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 51,692 psi | 77% | 2795 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 52,388 psi | 79% | 2805 fps | 100% |
| Norma MRP | <<locked>> | 88% | 59,190 psi | 89% | 2867 fps | 100% |
| Norma MRP | <<locked>> | 88% | 59,683 psi | 89% | 2874 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,276 psi | 86% | 2753 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,798 psi | 87% | 2759 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 58,175 psi | 87% | 2861 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 58,697 psi | 88% | 2871 fps | 100% |
| Ramshot Hunter | <<locked>> | 84% | 60,089 psi | 90% | 2812 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 56,782 psi | 85% | 2769 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,550 psi | 85% | 2795 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 57,246 psi | 86% | 2802 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,551 psi | 58% | 1795 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,696 psi | 58% | 1801 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 59,625 psi | 89% | 2795 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 60,147 psi | 90% | 2802 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 58,204 psi | 87% | 2822 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 58,740 psi | 88% | 2828 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,739 psi | 85% | 2900 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 57,493 psi | 86% | 2910 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 55,999 psi | 84% | 2867 fps | 99.5% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 56,913 psi | 85% | 2881 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 86% | 57,043 psi | 86% | 2759 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 86% | 57,508 psi | 86% | 2766 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 88% | 59,553 psi | 89% | 2825 fps | 100% |
| Rottweil R 905 | <<locked>> | 88% | 60,046 psi | 90% | 2831 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 60,046 psi | 90% | 2766 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 58,813 psi | 88% | 2733 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 59,292 psi | 89% | 2743 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,305 psi | 86% | 2736 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,812 psi | 87% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 57,682 psi | 86% | 2690 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 58,146 psi | 87% | 2700 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 59,132 psi | 89% | 2818 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 59,625 psi | 89% | 2825 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 58,465 psi | 88% | 2749 fps | 99.7% |
| Somchem S361 | <<locked>> | 86% | 58,871 psi | 88% | 2759 fps | 99.7% |
| Somchem S365 | <<locked>> | 84% | 58,769 psi | 88% | 2753 fps | 100% |
| Somchem S365 | <<locked>> | 84% | 59,350 psi | 89% | 2762 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 59,727 psi | 90% | 2789 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,623 psi | 85% | 2749 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 58,842 psi | 88% | 2743 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 59,364 psi | 89% | 2749 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 59,654 psi | 89% | 2776 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 60,089 psi | 90% | 2782 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 58,842 psi | 88% | 2802 fps | 97.2% |
| Vihtavuori N170 | <<locked>> | 96% | 59,393 psi | 89% | 2812 fps | 97.4% |
| Vihtavuori N550 | <<locked>> | 82% | 58,073 psi | 87% | 2746 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 58,566 psi | 88% | 2756 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 58,726 psi | 88% | 2785 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 59,538 psi | 89% | 2795 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 58,624 psi | 88% | 2874 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 88% | 59,088 psi | 89% | 2881 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 94% | 59,132 psi | 89% | 2858 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 94% | 59,828 psi | 90% | 2867 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 96% | 56,826 psi | 85% | 2874 fps | 99.3% |
| Vihtavuori N568 | <<locked>> | 96% | 57,464 psi | 86% | 2884 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 98% | 57,943 psi | 87% | 2930 fps | 98.3% |
| Vihtavuori N570 | <<locked>> | 98% | 58,624 psi | 88% | 2943 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 58,392 psi | 88% | 2694 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 58,842 psi | 88% | 2700 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 56,623 psi | 85% | 2844 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 57,493 psi | 86% | 2854 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 59,698 psi | 89% | 2789 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 56,420 psi | 85% | 2746 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% | 42,192 psi | 63% | 2503 fps | 99.9% |
| Accurate 3100 | <<locked>> | 80% | 42,482 psi | 64% | 2510 fps | 99.9% |
| Accurate 4350 | <<locked>> | 80% | 55,593 psi | 83% | 2723 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 55,927 psi | 84% | 2730 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 46,166 psi | 69% | 2677 fps | 98.7% |
| Accurate High Country | <<locked>> | 80% | 46,673 psi | 70% | 2687 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 80% | 43,598 psi | 65% | 2621 fps | 97.1% |
| Accurate MAGPRO | <<locked>> | 80% | 44,063 psi | 66% | 2631 fps | 97.3% |
| ADI AR 2209 | <<locked>> | 80% | 46,079 psi | 69% | 2625 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 80% | 46,586 psi | 70% | 2631 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 80% | 41,336 psi | 62% | 2566 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 80% | 41,800 psi | 63% | 2575 fps | 97.7% |
| ADI AR 2217 | <<locked>> | 84% | 35,389 psi | 53% | 2434 fps | 96% |
| ADI AR 2217 | <<locked>> | 82% | 33,388 psi | 50% | 2385 fps | 95.1% |
| ADI AR 2218 | <<locked>> | 96% | 46,064 psi | 69% | 2740 fps | 95.8% |
| ADI AR 2218 | <<locked>> | 96% | 46,572 psi | 70% | 2753 fps | 96% |
| ADI AR 2225 | <<locked>> | 80% | 28,268 psi | 42% | 2290 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 80% | 28,601 psi | 43% | 2300 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,586 psi | 70% | 2625 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,862 psi | 70% | 2631 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 52,939 psi | 79% | 2723 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,548 psi | 80% | 2733 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,151 psi | 69% | 2618 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,427 psi | 70% | 2625 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,032 psi | 63% | 2572 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,511 psi | 64% | 2582 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 40,872 psi | 61% | 2516 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,379 psi | 62% | 2526 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,273 psi | 53% | 2457 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,694 psi | 54% | 2470 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,035 psi | 69% | 2674 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,557 psi | 70% | 2684 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 43,714 psi | 66% | 2671 fps | 95.2% |
| Alliant Reloder-33 | <<locked>> | 92% | 44,266 psi | 66% | 2680 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 98% | 46,514 psi | 70% | 2717 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 98% | 47,094 psi | 71% | 2726 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 42,989 psi | 64% | 2543 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 43,308 psi | 65% | 2552 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 39,233 psi | 59% | 2513 fps | 98% |
| Bofors RP15 | <<locked>> | 80% | 39,523 psi | 59% | 2520 fps | 98.1% |
| Bofors RP30 | <<locked>> | 80% | 32,880 psi | 49% | 2392 fps | 95.1% |
| Bofors RP30 | <<locked>> | 80% | 33,185 psi | 50% | 2398 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 42,032 psi | 63% | 2572 fps | 98.8% |
| Bofors RP5 | <<locked>> | 80% | 42,511 psi | 64% | 2582 fps | 98.9% |
| Bofors RP7 | <<locked>> | 80% | 56,463 psi | 85% | 2717 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 33,562 psi | 50% | 2392 fps | 95.9% |
| Hodgdon H1000 | <<locked>> | 80% | 33,823 psi | 51% | 2402 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 80% | 43,903 psi | 66% | 2566 fps | 97.6% |
| Hodgdon H4831 | <<locked>> | 80% | 44,382 psi | 67% | 2575 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,163 psi | 65% | 2552 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,627 psi | 65% | 2562 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 49,806 psi | 75% | 2605 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,357 psi | 75% | 2612 fps | 100% |
| Hodgdon Retumbo | 63.2 gr | 80% | 34,490 psi | 52% | 2493 fps | 97.5% |
| Hodgdon Retumbo | 63.2 gr | 80% | 34,911 psi | 52% | 2507 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,311 psi | 42% | 1572 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,340 psi | 42% | 1575 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,735 psi | 78% | 2661 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,228 psi | 78% | 2671 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,185 psi | 78% | 2661 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,721 psi | 79% | 2671 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,078 psi | 68% | 2559 fps | 98% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,498 psi | 68% | 2569 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 80% | 40,074 psi | 60% | 2549 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 80% | 40,567 psi | 61% | 2559 fps | 97.5% |
| IMR 7977 Enduron | <<locked>> | 94% | 56,637 psi | 85% | 2717 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 88% | 33,779 psi | 51% | 2434 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 88% | 34,214 psi | 51% | 2448 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 55,376 psi | 83% | 2687 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 55,869 psi | 84% | 2697 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 53,925 psi | 81% | 2690 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 54,172 psi | 81% | 2694 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,376 psi | 55% | 2388 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 36,695 psi | 55% | 2395 fps | 99.3% |
| Norma 204 | <<locked>> | 80% | 52,649 psi | 79% | 2713 fps | 99.8% |
| Norma 204 | <<locked>> | 80% | 53,142 psi | 80% | 2720 fps | 99.9% |
| Norma 217 | <<locked>> | 84% | 29,704 psi | 45% | 2349 fps | 95.9% |
| Norma 217 | <<locked>> | 84% | 30,066 psi | 45% | 2356 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 44,715 psi | 67% | 2641 fps | 99.8% |
| Norma MRP | <<locked>> | 80% | 45,223 psi | 68% | 2651 fps | 99.9% |
| Norma URP | <<locked>> | 80% | 53,766 psi | 81% | 2703 fps | 100% |
| Norma URP | <<locked>> | 80% | 54,085 psi | 81% | 2710 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,045 psi | 60% | 2559 fps | 97.7% |
| Ramshot Grand | <<locked>> | 80% | 40,538 psi | 61% | 2569 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 80% | 52,707 psi | 79% | 2713 fps | 100% |
| Ramshot Hunter | <<locked>> | 80% | 53,214 psi | 80% | 2720 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 35,984 psi | 54% | 2444 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 80% | 36,419 psi | 55% | 2454 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,037 psi | 44% | 1608 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,066 psi | 44% | 1611 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 55,564 psi | 83% | 2743 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 56,101 psi | 84% | 2749 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 54,085 psi | 81% | 2769 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 54,607 psi | 82% | 2776 fps | 100% |
| ReloadSwiss RS 76 | 67.6 gr | 80% | 33,663 psi | 50% | 2470 fps | 98.3% |
| ReloadSwiss RS 76 | 67.6 gr | 80% | 34,055 psi | 51% | 2480 fps | 98.5% |
| ReloadSwiss RS 80 | 73.3 gr | 86% | 38,377 psi | 58% | 2549 fps | 95.7% |
| ReloadSwiss RS 80 | 73.3 gr | 86% | 38,957 psi | 58% | 2562 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 47,036 psi | 71% | 2598 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 80% | 47,311 psi | 71% | 2605 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 80% | 45,672 psi | 68% | 2608 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 80% | 45,992 psi | 69% | 2615 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 80% | 56,463 psi | 85% | 2717 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 55,376 psi | 83% | 2687 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 55,869 psi | 84% | 2697 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 53,925 psi | 81% | 2690 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 54,172 psi | 81% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,215 psi | 81% | 2644 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,665 psi | 82% | 2651 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,353 psi | 68% | 2602 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,643 psi | 68% | 2612 fps | 99.4% |
| Somchem S361 | <<locked>> | 80% | 47,906 psi | 72% | 2589 fps | 98.4% |
| Somchem S361 | <<locked>> | 80% | 48,298 psi | 72% | 2595 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 51,430 psi | 77% | 2657 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 52,011 psi | 78% | 2667 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,021 psi | 69% | 2582 fps | 99.7% |
| Somchem S385 | <<locked>> | 80% | 46,470 psi | 70% | 2592 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 55,274 psi | 83% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 55,579 psi | 83% | 2700 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 40,306 psi | 60% | 2470 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 80% | 40,582 psi | 61% | 2477 fps | 98.9% |
| Vihtavuori N170 | <<locked>> | 92% | 51,300 psi | 77% | 2687 fps | 95.6% |
| Vihtavuori N170 | <<locked>> | 92% | 51,866 psi | 78% | 2697 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 54,418 psi | 82% | 2700 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 54,926 psi | 82% | 2707 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 45,353 psi | 68% | 2592 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 45,890 psi | 69% | 2598 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,454 psi | 67% | 2638 fps | 97.9% |
| Vihtavuori N560 | <<locked>> | 80% | 44,933 psi | 67% | 2648 fps | 98.1% |
| Vihtavuori N565 | <<locked>> | 80% | 36,753 psi | 55% | 2461 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 80% | 37,202 psi | 56% | 2470 fps | 96.1% |
| Vihtavuori N568 | <<locked>> | 86% | 39,697 psi | 60% | 2566 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 86% | 40,089 psi | 60% | 2575 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 92% | 46,644 psi | 70% | 2740 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 92% | 47,268 psi | 71% | 2749 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 54,505 psi | 82% | 2644 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 54,940 psi | 82% | 2654 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 38,754 psi | 58% | 2572 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 39,305 psi | 59% | 2582 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,438 psi | 64% | 2520 fps | 98.8% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,888 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 141 powders for 7 mm STW loaded with the .284 | 175gr | Hornady ELD-X. Hodgdon Retumbo delivers the highest muzzle velocity at 2,966 fps; across all powders the maximum-charge window runs from 1,755 fps to 2,966 fps. ADI AR 2218 gives the best case fill at 100 %, and 141 of the 141 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 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 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, ReloadSwiss RS 80 rank at the top here: for 7 mm STW with the .284 | 175gr | Hornady ELD-X 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.