Load Specifications
Load data in caliber 7 mm STW with .287 | 160gr | Woodleigh PP SN bullet and 69 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% | 58,407 psi | 88% | 2861 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 58,726 psi | 88% | 2881 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 57,246 psi | 86% | 2963 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 88% | 59,814 psi | 90% | 2949 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 58,030 psi | 87% | 2963 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 98% | 56,521 psi | 85% | 2936 fps | 99.8% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 52,982 psi | 79% | 2969 fps | 97.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,114 psi | 83% | 2953 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 59,901 psi | 90% | 2936 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 59,292 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 58,392 psi | 88% | 2956 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 60,133 psi | 90% | 2917 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 56,550 psi | 85% | 2936 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 57,058 psi | 86% | 2953 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 58,653 psi | 88% | 3025 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 58,726 psi | 88% | 2923 fps | 98.2% |
| Bofors RP15 | <<locked>> | 92% | 57,551 psi | 86% | 2943 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 60,278 psi | 90% | 3005 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 58,392 psi | 88% | 2956 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 59,727 psi | 90% | 2881 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 58,160 psi | 87% | 2959 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 60,133 psi | 90% | 2940 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 57,232 psi | 86% | 2897 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 60,060 psi | 90% | 2936 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 59,944 psi | 90% | 2854 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 59,596 psi | 89% | 3077 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,579 psi | 56% | 1847 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 58,262 psi | 87% | 2867 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 58,914 psi | 88% | 2871 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 57,711 psi | 87% | 2877 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 90% | 56,260 psi | 84% | 2943 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,328 psi | 75% | 2867 fps | 99.2% |
| Lovex S065 | <<locked>> | 82% | 58,508 psi | 88% | 2848 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 56,898 psi | 85% | 2848 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 60,075 psi | 90% | 2884 fps | 100% |
| Norma 204 | <<locked>> | 84% | 59,712 psi | 90% | 2930 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 51,372 psi | 77% | 2894 fps | 100% |
| Norma MRP | <<locked>> | 88% | 58,595 psi | 88% | 2972 fps | 100% |
| Norma URP | <<locked>> | 82% | 56,811 psi | 85% | 2864 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 57,653 psi | 86% | 2969 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 59,582 psi | 89% | 2923 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 55,898 psi | 84% | 2894 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,450 psi | 58% | 1890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 59,161 psi | 89% | 2907 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 57,595 psi | 86% | 2930 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,420 psi | 85% | 3009 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 60,162 psi | 90% | 3035 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 88% | 60,176 psi | 90% | 2917 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 58,972 psi | 88% | 2930 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 59,727 psi | 90% | 2881 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 58,508 psi | 88% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 56,898 psi | 85% | 2848 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 57,435 psi | 86% | 2802 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 58,552 psi | 88% | 2927 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 58,015 psi | 87% | 2854 fps | 99.4% |
| Somchem S365 | <<locked>> | 84% | 58,305 psi | 87% | 2864 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 59,466 psi | 89% | 2900 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 58,305 psi | 87% | 2851 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 59,350 psi | 89% | 2884 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 58,436 psi | 88% | 2904 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 82% | 57,638 psi | 86% | 2858 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 58,218 psi | 87% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 58,059 psi | 87% | 2976 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 94% | 58,813 psi | 88% | 2963 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 96% | 56,304 psi | 84% | 2969 fps | 98.8% |
| Vihtavuori N570 | <<locked>> | 98% | 57,537 psi | 86% | 3031 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 58,001 psi | 87% | 2802 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 56,057 psi | 84% | 2949 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 59,379 psi | 89% | 2897 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% | 41,727 psi | 63% | 2595 fps | 99.6% |
| Accurate 4350 | <<locked>> | 80% | 54,984 psi | 82% | 2831 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 43,091 psi | 65% | 2710 fps | 96.2% |
| ADI AR 2209 | <<locked>> | 80% | 45,629 psi | 68% | 2720 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 80% | 40,988 psi | 61% | 2657 fps | 96.7% |
| ADI AR 2217 | <<locked>> | 86% | 37,507 psi | 56% | 2575 fps | 95.9% |
| ADI AR 2218 | <<locked>> | 98% | 49,124 psi | 74% | 2894 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 82% | 29,907 psi | 45% | 2421 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 52,576 psi | 79% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,658 psi | 68% | 2713 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 41,669 psi | 62% | 2667 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 40,495 psi | 61% | 2615 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,853 psi | 52% | 2543 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 45,571 psi | 68% | 2772 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 46,789 psi | 70% | 2822 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 45,411 psi | 68% | 2690 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 38,827 psi | 58% | 2602 fps | 97.2% |
| Bofors RP30 | <<locked>> | 82% | 34,751 psi | 52% | 2530 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 41,669 psi | 62% | 2667 fps | 98.1% |
| Bofors RP7 | <<locked>> | 80% | 56,115 psi | 84% | 2828 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 35,563 psi | 53% | 2533 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 56,231 psi | 84% | 2884 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 43,526 psi | 65% | 2661 fps | 96.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,801 psi | 64% | 2644 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 49,298 psi | 74% | 2710 fps | 100% |
| Hodgdon Retumbo | 66.1 gr | 80% | 34,026 psi | 51% | 2569 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,268 psi | 42% | 1657 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,285 psi | 77% | 2766 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 51,909 psi | 78% | 2772 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,672 psi | 67% | 2654 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 80% | 39,740 psi | 60% | 2641 fps | 96.4% |
| IMR 8133 Enduron | <<locked>> | 90% | 35,752 psi | 54% | 2572 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 54,998 psi | 82% | 2799 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 53,461 psi | 80% | 2795 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,911 psi | 54% | 2474 fps | 98.6% |
| Norma 204 | <<locked>> | 80% | 52,127 psi | 78% | 2815 fps | 99.6% |
| Norma 217 | <<locked>> | 86% | 31,314 psi | 47% | 2474 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 44,077 psi | 66% | 2733 fps | 99.5% |
| Norma URP | <<locked>> | 80% | 53,301 psi | 80% | 2812 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 39,668 psi | 59% | 2648 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 80% | 52,141 psi | 78% | 2815 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 35,534 psi | 53% | 2526 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,935 psi | 43% | 1693 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 55,085 psi | 83% | 2848 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 53,664 psi | 80% | 2877 fps | 100% |
| ReloadSwiss RS 76 | 70.8 gr | 80% | 33,315 psi | 50% | 2546 fps | 97.3% |
| ReloadSwiss RS 80 | 78.5 gr | 88% | 41,060 psi | 62% | 2700 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 46,659 psi | 70% | 2697 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 80% | 45,223 psi | 68% | 2703 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 80% | 56,115 psi | 84% | 2828 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 54,998 psi | 82% | 2799 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 53,461 psi | 80% | 2795 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 53,722 psi | 81% | 2749 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,889 psi | 67% | 2700 fps | 98.8% |
| Somchem S361 | <<locked>> | 80% | 47,601 psi | 71% | 2684 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 50,879 psi | 76% | 2766 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 45,643 psi | 68% | 2680 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 54,708 psi | 82% | 2802 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 39,842 psi | 60% | 2559 fps | 98.2% |
| Vihtavuori N170 | <<locked>> | 94% | 54,650 psi | 82% | 2841 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 53,983 psi | 81% | 2805 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 44,947 psi | 67% | 2690 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,845 psi | 66% | 2726 fps | 97.1% |
| Vihtavuori N565 | <<locked>> | 82% | 39,088 psi | 59% | 2605 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 88% | 42,221 psi | 63% | 2717 fps | 95.5% |
| Vihtavuori N570 | <<locked>> | 94% | 49,821 psi | 75% | 2897 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 54,099 psi | 81% | 2753 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 38,101 psi | 57% | 2661 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,047 psi | 63% | 2612 fps | 98.2% |
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 .287 | 160gr | Woodleigh PP SN. Hodgdon Retumbo delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,077 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 56–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.287" calls for a 1:12.0 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 .287 | 160gr | Woodleigh PP SN 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.