Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:144 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:1:9.5
Load data in caliber 7 mm STW with .284 | 144gr | Peregrine VLR-5 bullet and 153 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand and Alliant Reloder-26.
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>> | 94% | 58,726 psi | 88% | 2999 fps | 100% |
| Accurate 3100 | <<locked>> | 94% | 58,421 psi | 88% | 2995 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 59,509 psi | 89% | 3031 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 59,408 psi | 89% | 3031 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 56,637 psi | 85% | 3097 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 92% | 57,667 psi | 86% | 3097 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 92% | 57,377 psi | 86% | 3094 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 82% | 59,799 psi | 90% | 2992 fps | 100% |
| ADI AR 2208 | <<locked>> | 82% | 59,509 psi | 89% | 2986 fps | 100% |
| ADI AR 2209 | <<locked>> | 90% | 56,985 psi | 85% | 3041 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 56,710 psi | 85% | 3038 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 58,856 psi | 88% | 3104 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 94% | 58,552 psi | 88% | 3100 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,866 psi | 79% | 2999 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,620 psi | 79% | 2995 fps | 98.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,485 psi | 71% | 2956 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,268 psi | 71% | 2953 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 56,884 psi | 85% | 3031 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 57,188 psi | 86% | 3038 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,840 psi | 85% | 3038 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,724 psi | 85% | 3035 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 57,972 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 57,885 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 60,278 psi | 90% | 3087 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 92% | 60,002 psi | 90% | 3081 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 58,900 psi | 88% | 3097 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 58,610 psi | 88% | 3094 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 60,249 psi | 90% | 3058 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 96% | 59,930 psi | 90% | 3058 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 60,278 psi | 90% | 3127 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 59,973 psi | 90% | 3123 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 57,159 psi | 86% | 3097 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,840 psi | 85% | 3091 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 60,104 psi | 90% | 3061 fps | 97.4% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 59,915 psi | 90% | 3054 fps | 97.3% |
| Bofors RP15 | <<locked>> | 96% | 57,986 psi | 87% | 3081 fps | 99.7% |
| Bofors RP15 | <<locked>> | 96% | 57,682 psi | 86% | 3077 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,796 psi | 84% | 3071 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,535 psi | 83% | 3064 fps | 99.2% |
| Bofors RP5 | <<locked>> | 94% | 58,900 psi | 88% | 3097 fps | 99.8% |
| Bofors RP5 | <<locked>> | 94% | 58,610 psi | 88% | 3094 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 57,667 psi | 86% | 2982 fps | 99.9% |
| Bofors RP7 | <<locked>> | 84% | 57,348 psi | 86% | 2976 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 58,682 psi | 88% | 3094 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 58,421 psi | 88% | 3091 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 84% | 57,464 psi | 86% | 3035 fps | 100% |
| Hodgdon H414 | <<locked>> | 84% | 57,174 psi | 86% | 3031 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 60,031 psi | 90% | 3051 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 59,741 psi | 90% | 3045 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 58,552 psi | 88% | 3041 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 92% | 58,262 psi | 87% | 3035 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,305 psi | 86% | 3025 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,072 psi | 86% | 3018 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,956 psi | 85% | 2956 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,869 psi | 85% | 2956 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 59,161 psi | 89% | 3212 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 58,871 psi | 88% | 3205 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 58,581 psi | 88% | 3074 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 58,276 psi | 87% | 3068 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,159 psi | 56% | 1929 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,144 psi | 56% | 1926 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 59,799 psi | 90% | 3022 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 59,538 psi | 89% | 3018 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 59,146 psi | 89% | 3005 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 59,074 psi | 89% | 3002 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 59,930 psi | 90% | 3025 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 59,611 psi | 89% | 3018 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 59,117 psi | 89% | 3022 fps | 98.9% |
| IMR 4955 Enduron | <<locked>> | 92% | 58,885 psi | 88% | 3018 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 94% | 56,724 psi | 85% | 3081 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 94% | 56,420 psi | 85% | 3074 fps | 99% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,801 psi | 64% | 2848 fps | 96.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,554 psi | 64% | 2844 fps | 96.4% |
| Lovex S065 | <<locked>> | 86% | 59,785 psi | 90% | 2999 fps | 100% |
| Lovex S065 | <<locked>> | 86% | 59,698 psi | 89% | 2999 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 58,146 psi | 87% | 2999 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 57,812 psi | 87% | 2992 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 59,756 psi | 90% | 3015 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 59,451 psi | 89% | 3009 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,276 psi | 86% | 3022 fps | 99.5% |
| Norma 204 | <<locked>> | 86% | 56,985 psi | 85% | 3018 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 43,062 psi | 65% | 2874 fps | 98.7% |
| Norma 217ᴾ | <<locked>> | 100% | 42,801 psi | 64% | 2871 fps | 98.6% |
| Norma MRP | <<locked>> | 92% | 59,045 psi | 89% | 3117 fps | 100% |
| Norma MRP | <<locked>> | 92% | 58,740 psi | 88% | 3114 fps | 100% |
| Norma URP | <<locked>> | 86% | 57,856 psi | 87% | 3015 fps | 100% |
| Norma URP | <<locked>> | 86% | 57,537 psi | 86% | 3009 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 57,798 psi | 87% | 3104 fps | 99.4% |
| Ramshot Grand | <<locked>> | 94% | 57,479 psi | 86% | 3097 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 56,855 psi | 85% | 3022 fps | 100% |
| Ramshot Hunter | <<locked>> | 86% | 56,594 psi | 85% | 3015 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,347 psi | 84% | 3031 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 96% | 56,086 psi | 84% | 3025 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,942 psi | 57% | 1972 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,927 psi | 57% | 1969 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 60,104 psi | 90% | 3058 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 59,785 psi | 90% | 3054 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 58,798 psi | 88% | 3087 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 58,465 psi | 88% | 3084 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 56,043 psi | 84% | 3140 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 60,263 psi | 90% | 3202 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,434 psi | 83% | 3091 fps | 98.3% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,940 psi | 82% | 3081 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 82% | 59,088 psi | 89% | 2976 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 58,769 psi | 88% | 2972 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 57,740 psi | 87% | 3009 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 90% | 57,696 psi | 86% | 3005 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 92% | 59,785 psi | 90% | 3074 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 92% | 59,466 psi | 89% | 3071 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 57,667 psi | 86% | 2982 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 84% | 57,348 psi | 86% | 2976 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 59,785 psi | 90% | 2999 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 86% | 59,698 psi | 89% | 2999 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 58,146 psi | 87% | 2999 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 57,812 psi | 87% | 2992 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 58,450 psi | 88% | 2841 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 58,363 psi | 87% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 59,219 psi | 89% | 2956 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 58,929 psi | 88% | 2949 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 59,350 psi | 89% | 3071 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 59,016 psi | 88% | 3064 fps | 99.8% |
| Somchem S355 | <<locked>> | 82% | 58,639 psi | 88% | 2969 fps | 100% |
| Somchem S355 | <<locked>> | 82% | 58,305 psi | 87% | 2966 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 59,683 psi | 89% | 2999 fps | 98.9% |
| Somchem S361 | <<locked>> | 90% | 59,437 psi | 89% | 2995 fps | 98.8% |
| Somchem S365 | <<locked>> | 88% | 58,900 psi | 88% | 3018 fps | 100% |
| Somchem S365 | <<locked>> | 88% | 58,552 psi | 88% | 3012 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 60,249 psi | 90% | 3045 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 59,959 psi | 90% | 3038 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 60,060 psi | 90% | 2940 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 59,756 psi | 90% | 2936 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 59,582 psi | 89% | 3005 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 59,495 psi | 89% | 3002 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 60,060 psi | 90% | 3022 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 96% | 59,785 psi | 90% | 3018 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 58,726 psi | 88% | 3009 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 58,653 psi | 88% | 3009 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 58,276 psi | 87% | 3035 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 57,972 psi | 87% | 3031 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 58,682 psi | 88% | 3117 fps | 99% |
| Vihtavuori N560 | <<locked>> | 92% | 58,392 psi | 88% | 3110 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 98% | 58,900 psi | 88% | 3094 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 98% | 58,378 psi | 88% | 3087 fps | 99.1% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 56,086 psi | 84% | 3091 fps | 97.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,579 psi | 83% | 3084 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 59,553 psi | 89% | 2956 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 59,306 psi | 89% | 2953 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,711 psi | 87% | 3038 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,392 psi | 86% | 3035 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 59,466 psi | 89% | 3146 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 59,117 psi | 89% | 3143 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,550 psi | 85% | 2982 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 94% | 60,263 psi | 90% | 3035 fps | 99.8% |
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% | 35,926 psi | 54% | 2592 fps | 97.7% |
| Accurate 3100 | <<locked>> | 80% | 35,824 psi | 54% | 2589 fps | 97.6% |
| Accurate 4350 | <<locked>> | 80% | 48,283 psi | 72% | 2861 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 48,167 psi | 72% | 2861 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 42,453 psi | 64% | 2831 fps | 96% |
| Accurate MAGPRO | 73.4 gr | 86% | 46,412 psi | 70% | 2900 fps | 95.9% |
| Accurate MAGPRO | 73.4 gr | 86% | 46,137 psi | 69% | 2894 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 56,072 psi | 84% | 2936 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 55,985 psi | 84% | 2936 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 40,190 psi | 60% | 2730 fps | 96.4% |
| ADI AR 2209 | <<locked>> | 80% | 40,103 psi | 60% | 2726 fps | 96.4% |
| ADI AR 2213 | <<locked>> | 84% | 41,423 psi | 62% | 2782 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 84% | 41,162 psi | 62% | 2776 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 92% | 40,074 psi | 60% | 2746 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 92% | 39,885 psi | 60% | 2740 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 90% | 33,692 psi | 51% | 2635 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 90% | 33,504 psi | 50% | 2628 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,596 psi | 61% | 2730 fps | 96.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,698 psi | 61% | 2733 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,383 psi | 70% | 2871 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,267 psi | 69% | 2867 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 54,157 psi | 81% | 2992 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 53,824 psi | 81% | 2986 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,321 psi | 60% | 2726 fps | 96.5% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,234 psi | 60% | 2723 fps | 96.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,100 psi | 54% | 2657 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 82% | 38,624 psi | 58% | 2720 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,751 psi | 52% | 2625 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,621 psi | 52% | 2621 fps | 99.7% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,965 psi | 45% | 2523 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,892 psi | 45% | 2520 fps | 95.9% |
| Alliant Reloder-26 | 69.1 gr | 80% | 38,566 psi | 58% | 2766 fps | 99.4% |
| Alliant Reloder-26 | 69.1 gr | 80% | 38,450 psi | 58% | 2762 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,939 psi | 79% | 2940 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,736 psi | 79% | 2936 fps | 95.7% |
| Bofors RP15 | <<locked>> | 84% | 38,551 psi | 58% | 2717 fps | 95.8% |
| Bofors RP15 | <<locked>> | 84% | 38,305 psi | 57% | 2710 fps | 95.7% |
| Bofors RP30 | <<locked>> | 90% | 39,276 psi | 59% | 2756 fps | 95.4% |
| Bofors RP30 | <<locked>> | 90% | 39,001 psi | 58% | 2749 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 36,100 psi | 54% | 2657 fps | 95% |
| Bofors RP5 | <<locked>> | 82% | 38,624 psi | 58% | 2720 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 50,604 psi | 76% | 2867 fps | 99.4% |
| Bofors RP7 | <<locked>> | 80% | 50,531 psi | 76% | 2864 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 88% | 38,101 psi | 57% | 2703 fps | 95.3% |
| Hodgdon H1000 | <<locked>> | 88% | 38,043 psi | 57% | 2700 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 50,140 psi | 75% | 2917 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 49,850 psi | 75% | 2910 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 52,547 psi | 79% | 2933 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 52,228 psi | 78% | 2927 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 84% | 44,208 psi | 66% | 2789 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 84% | 43,961 psi | 66% | 2785 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 84% | 43,453 psi | 65% | 2776 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 84% | 43,207 psi | 65% | 2769 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,627 psi | 65% | 2746 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,511 psi | 65% | 2746 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 36,071 psi | 54% | 2740 fps | 95.7% |
| Hodgdon Retumbo | <<locked>> | 86% | 35,853 psi | 54% | 2733 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 50,285 psi | 75% | 2940 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 80% | 49,995 psi | 75% | 2936 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,688 psi | 42% | 1726 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,644 psi | 41% | 1722 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,006 psi | 69% | 2795 fps | 98.8% |
| IMR 4350 | <<locked>> | 80% | 45,919 psi | 69% | 2792 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,040 psi | 78% | 2894 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,967 psi | 78% | 2890 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 45,905 psi | 69% | 2805 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 45,585 psi | 68% | 2799 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 42,815 psi | 64% | 2733 fps | 95.5% |
| IMR 4955 Enduron | <<locked>> | 82% | 42,569 psi | 64% | 2726 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 86% | 42,627 psi | 64% | 2822 fps | 96% |
| IMR 7828 SSC | <<locked>> | 86% | 42,569 psi | 64% | 2818 fps | 96% |
| IMR 8133 Enduron | <<locked>> | 98% | 39,856 psi | 60% | 2785 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 98% | 39,610 psi | 59% | 2779 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 49,516 psi | 74% | 2838 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 49,414 psi | 74% | 2838 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 47,848 psi | 72% | 2828 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 47,776 psi | 72% | 2828 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 30,719 psi | 46% | 2461 fps | 95.6% |
| Lovex S071 | <<locked>> | 80% | 30,632 psi | 46% | 2457 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 46,441 psi | 70% | 2835 fps | 97.9% |
| Norma 204 | <<locked>> | 80% | 46,151 psi | 69% | 2831 fps | 97.9% |
| Norma 217 | <<locked>> | 94% | 34,679 psi | 52% | 2680 fps | 95.9% |
| Norma 217 | <<locked>> | 94% | 34,432 psi | 52% | 2674 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 38,014 psi | 57% | 2730 fps | 97.2% |
| Norma MRP | <<locked>> | 80% | 37,724 psi | 57% | 2723 fps | 97.1% |
| Norma URP | <<locked>> | 80% | 47,340 psi | 71% | 2848 fps | 100% |
| Norma URP | <<locked>> | 80% | 47,224 psi | 71% | 2848 fps | 100% |
| Ramshot Grand | 69.8 gr | 84% | 39,610 psi | 59% | 2762 fps | 95.3% |
| Ramshot Grand | 69.8 gr | 84% | 39,349 psi | 59% | 2756 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 46,282 psi | 69% | 2844 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 80% | 46,006 psi | 69% | 2838 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 35,317 psi | 53% | 2635 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 84% | 35,099 psi | 53% | 2628 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,427 psi | 43% | 1768 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,384 psi | 43% | 1768 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,559 psi | 73% | 2881 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,254 psi | 72% | 2877 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,905 psi | 70% | 2900 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,601 psi | 70% | 2897 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 32,924 psi | 49% | 2638 fps | 95.4% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 32,721 psi | 49% | 2635 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,497 psi | 65% | 2871 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,265 psi | 65% | 2864 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 55,303 psi | 83% | 2923 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 55,187 psi | 83% | 2923 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 41,568 psi | 62% | 2713 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 41,292 psi | 62% | 2707 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 39,610 psi | 59% | 2710 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 80% | 39,508 psi | 59% | 2707 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 80% | 50,604 psi | 76% | 2867 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 80% | 50,531 psi | 76% | 2864 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,516 psi | 74% | 2838 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,414 psi | 74% | 2838 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 47,848 psi | 72% | 2828 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 47,776 psi | 72% | 2828 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 54,955 psi | 82% | 2799 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 54,853 psi | 82% | 2795 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,385 psi | 73% | 2785 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,341 psi | 72% | 2785 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,276 psi | 59% | 2707 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,175 psi | 59% | 2700 fps | 96.2% |
| Somchem S355 | <<locked>> | 80% | 54,940 psi | 82% | 2917 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 54,824 psi | 82% | 2917 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 42,337 psi | 63% | 2697 fps | 95.2% |
| Somchem S361 | <<locked>> | 80% | 42,119 psi | 63% | 2694 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 44,396 psi | 67% | 2799 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 44,266 psi | 66% | 2799 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,132 psi | 60% | 2694 fps | 97.4% |
| Somchem S385 | <<locked>> | 80% | 39,842 psi | 60% | 2684 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 80% | 52,707 psi | 79% | 2838 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 52,605 psi | 79% | 2838 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,791 psi | 73% | 2844 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,718 psi | 73% | 2841 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,780 psi | 52% | 2559 fps | 95.2% |
| Vihtavuori N165 | <<locked>> | 80% | 34,679 psi | 52% | 2556 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 48,153 psi | 72% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 47,848 psi | 72% | 2841 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,798 psi | 58% | 2700 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 38,667 psi | 58% | 2697 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 44,135 psi | 66% | 2854 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 84% | 43,859 psi | 66% | 2848 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 88% | 41,379 psi | 62% | 2776 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 88% | 41,104 psi | 62% | 2769 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 94% | 44,802 psi | 67% | 2887 fps | 95% |
| Vihtavuori N568 | <<locked>> | 96% | 48,022 psi | 72% | 2949 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,196 psi | 72% | 2799 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,921 psi | 72% | 2792 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,343 psi | 75% | 2920 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 50,067 psi | 75% | 2913 fps | 99.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,169 psi | 47% | 2638 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 30,879 psi | 46% | 2631 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,782 psi | 55% | 2615 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,550 psi | 55% | 2608 fps | 95.2% |
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 153 powders for 7 mm STW loaded with the .284 | 144gr | Peregrine VLR-5. Hodgdon Retumbo delivers the highest muzzle velocity at 3,212 fps; across all powders the maximum-charge window runs from 1,926 fps to 3,212 fps. ADI AR 2217 gives the best case fill at 100 %, and 153 of the 153 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 144.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2217, 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. Accurate MAGPRO, Ramshot Grand, Alliant Reloder-26 rank at the top here: for 7 mm STW with the .284 | 144gr | Peregrine VLR-5 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.