Load Specifications
Load data in caliber 7 mm STW with .284 | 140gr | Rhino Solid Shank bullet and 73 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>> | 92% | 57,232 psi | 86% | 3009 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 58,015 psi | 87% | 3041 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 60,336 psi | 90% | 3169 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 90% | 58,987 psi | 88% | 3104 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 57,029 psi | 85% | 3107 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 55,187 psi | 83% | 3068 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,821 psi | 75% | 3025 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 59,146 psi | 89% | 3097 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 58,943 psi | 88% | 3100 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 60,350 psi | 90% | 3110 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 58,450 psi | 88% | 3091 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 57,334 psi | 86% | 3104 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 58,769 psi | 88% | 3071 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 58,711 psi | 88% | 3136 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 59,944 psi | 90% | 3166 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 58,233 psi | 87% | 3064 fps | 97% |
| Bofors RP15 | <<locked>> | 96% | 60,220 psi | 90% | 3146 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 58,494 psi | 88% | 3140 fps | 99.5% |
| Bofors RP5 | <<locked>> | 92% | 57,334 psi | 86% | 3104 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 59,451 psi | 89% | 3045 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 56,797 psi | 85% | 3094 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 59,480 psi | 89% | 3097 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 57,986 psi | 87% | 3054 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 90% | 56,594 psi | 85% | 3041 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 59,393 psi | 89% | 3084 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 59,059 psi | 89% | 3015 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 57,551 psi | 86% | 3215 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 56,347 psi | 84% | 3071 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,333 psi | 56% | 1965 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,914 psi | 87% | 3028 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,130 psi | 86% | 3009 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 58,291 psi | 87% | 3031 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 57,261 psi | 86% | 3025 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 94% | 59,190 psi | 89% | 3150 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 45,223 psi | 68% | 2927 fps | 97.1% |
| Lovex S065 | <<locked>> | 84% | 58,160 psi | 87% | 3009 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 60,147 psi | 90% | 3061 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 58,639 psi | 88% | 3028 fps | 100% |
| Norma 204 | <<locked>> | 86% | 59,292 psi | 89% | 3084 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 45,600 psi | 68% | 2949 fps | 99.1% |
| Norma MRP | <<locked>> | 90% | 57,261 psi | 86% | 3120 fps | 100% |
| Norma URP | <<locked>> | 86% | 59,944 psi | 90% | 3081 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 60,350 psi | 90% | 3173 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 86% | 59,001 psi | 88% | 3084 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 58,972 psi | 88% | 3100 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,130 psi | 57% | 2008 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 58,146 psi | 87% | 3061 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,608 psi | 85% | 3087 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 59,088 psi | 89% | 3215 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 58,421 psi | 88% | 3166 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 90% | 59,654 psi | 89% | 3071 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 90% | 58,030 psi | 87% | 3081 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 59,451 psi | 89% | 3045 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 58,160 psi | 87% | 3009 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 60,147 psi | 90% | 3061 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 60,075 psi | 90% | 2897 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 57,159 psi | 86% | 2956 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 57,609 psi | 86% | 3074 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 57,725 psi | 87% | 3002 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 57,246 psi | 86% | 3028 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 58,552 psi | 88% | 3048 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 58,204 psi | 87% | 2946 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 57,841 psi | 87% | 3015 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 58,276 psi | 87% | 3028 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 57,087 psi | 86% | 3018 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 57,029 psi | 85% | 3048 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,855 psi | 85% | 3117 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 96% | 57,551 psi | 86% | 3104 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 58,813 psi | 88% | 3163 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 57,522 psi | 86% | 2963 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 59,712 psi | 90% | 3100 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 58,146 psi | 87% | 3159 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 58,639 psi | 88% | 3045 fps | 99.7% |
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% | 37,956 psi | 57% | 2661 fps | 98.1% |
| Accurate 4350 | <<locked>> | 80% | 50,430 psi | 76% | 2927 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 45,266 psi | 68% | 2904 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 42,003 psi | 63% | 2799 fps | 96.9% |
| ADI AR 2213 | <<locked>> | 84% | 43,047 psi | 65% | 2848 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 92% | 41,858 psi | 63% | 2812 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 88% | 33,170 psi | 50% | 2641 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,308 psi | 63% | 2795 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,211 psi | 72% | 2933 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 56,115 psi | 84% | 3051 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,930 psi | 63% | 2789 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,971 psi | 57% | 2726 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,608 psi | 55% | 2690 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,720 psi | 48% | 2595 fps | 96.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,785 psi | 61% | 2838 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 51,358 psi | 77% | 2943 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 37,826 psi | 57% | 2723 fps | 95.4% |
| Bofors RP30 | <<locked>> | 88% | 38,580 psi | 58% | 2762 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 37,971 psi | 57% | 2726 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 52,301 psi | 78% | 2930 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 39,929 psi | 60% | 2769 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 52,025 psi | 78% | 2979 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 54,288 psi | 81% | 2995 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 42,931 psi | 64% | 2792 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 84% | 45,092 psi | 68% | 2835 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,498 psi | 68% | 2812 fps | 100% |
| Hodgdon Retumbo | 70.4 gr | 84% | 35,505 psi | 53% | 2743 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 52,388 psi | 79% | 3005 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,007 psi | 42% | 1762 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,761 psi | 72% | 2858 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,766 psi | 81% | 2956 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 47,805 psi | 72% | 2867 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 44,222 psi | 66% | 2789 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 84% | 41,626 psi | 62% | 2825 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 96% | 39,291 psi | 59% | 2795 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 51,285 psi | 77% | 2900 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,632 psi | 74% | 2890 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 32,634 psi | 49% | 2533 fps | 96.3% |
| Norma 204 | <<locked>> | 80% | 48,153 psi | 72% | 2900 fps | 98.2% |
| Norma 217 | <<locked>> | 92% | 34,490 psi | 52% | 2697 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 39,914 psi | 60% | 2799 fps | 97.7% |
| Norma URP | <<locked>> | 80% | 49,153 psi | 74% | 2910 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 41,524 psi | 62% | 2831 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 48,109 psi | 72% | 2907 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 34,577 psi | 52% | 2638 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,601 psi | 43% | 1804 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,589 psi | 76% | 2946 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,950 psi | 73% | 2969 fps | 100% |
| ReloadSwiss RS 76 | 75.3 gr | 84% | 34,795 psi | 52% | 2717 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 46,195 psi | 69% | 2949 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 43,120 psi | 65% | 2772 fps | 96% |
| Rottweil R 905 | <<locked>> | 80% | 41,350 psi | 62% | 2776 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 52,301 psi | 78% | 2930 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,285 psi | 77% | 2900 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,632 psi | 74% | 2890 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 56,449 psi | 85% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,227 psi | 75% | 2848 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,017 psi | 61% | 2769 fps | 96.7% |
| Somchem S361 | <<locked>> | 80% | 44,063 psi | 66% | 2759 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 46,586 psi | 70% | 2864 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,047 psi | 63% | 2759 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 54,462 psi | 82% | 2897 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 50,546 psi | 76% | 2904 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,390 psi | 55% | 2621 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 50,038 psi | 75% | 2907 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,872 psi | 61% | 2769 fps | 99.8% |
| Vihtavuori N560 | 71.3 gr | 82% | 42,946 psi | 64% | 2854 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 88% | 43,569 psi | 65% | 2848 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 94% | 47,123 psi | 71% | 2959 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,966 psi | 75% | 2854 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,228 psi | 78% | 2982 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,344 psi | 50% | 2717 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,537 psi | 58% | 2677 fps | 95.8% |
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 73 powders for 7 mm STW loaded with the .284 | 140gr | Rhino Solid Shank. Hodgdon Retumbo delivers the highest muzzle velocity at 3,215 fps; across all powders the maximum-charge window runs from 1,965 fps to 3,215 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 140.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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 | 140gr | Rhino Solid Shank 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.