Load Specifications
Load data in caliber .270 WSM with .277 | 140gr | Berger VLD Hunting bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 57,072 psi | 89% | 2966 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,665 psi | 86% | 2946 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 57,087 psi | 89% | 3100 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 92% | 54,273 psi | 85% | 3038 fps | 96.7% |
| ADI AR 2209 | <<locked>> | 92% | 57,232 psi | 90% | 3035 fps | 99% |
| ADI AR 2213 | <<locked>> | 94% | 55,274 psi | 87% | 3035 fps | 97.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,125 psi | 79% | 2933 fps | 97% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,107 psi | 71% | 2904 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 54,230 psi | 85% | 2976 fps | 98.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 54,230 psi | 85% | 2976 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,479 psi | 90% | 3041 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,216 psi | 87% | 3005 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,159 psi | 90% | 3025 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,550 psi | 87% | 3045 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,565 psi | 89% | 3022 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,637 psi | 87% | 3074 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,884 psi | 89% | 3110 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 54,563 psi | 86% | 3025 fps | 98.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,199 psi | 82% | 3015 fps | 98% |
| Bofors RP5 | <<locked>> | 94% | 55,550 psi | 87% | 3045 fps | 99% |
| Bofors RP7 | <<locked>> | 84% | 56,347 psi | 88% | 2930 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,534 psi | 85% | 3015 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 84% | 55,259 psi | 87% | 2986 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 84% | 57,406 psi | 90% | 2989 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 92% | 55,187 psi | 86% | 2972 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 54,186 psi | 85% | 2956 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 54,926 psi | 86% | 2917 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,505 psi | 85% | 3136 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 84% | 55,114 psi | 86% | 3015 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,478 psi | 59% | 1867 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,319 psi | 90% | 2966 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,188 psi | 90% | 2949 fps | 99.7% |
| IMR 4831 | <<locked>> | 86% | 54,592 psi | 86% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,246 psi | 88% | 2956 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 96% | 56,695 psi | 89% | 3074 fps | 98.2% |
| Lovex S065 | <<locked>> | 84% | 55,216 psi | 87% | 2904 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 56,695 psi | 89% | 2953 fps | 99.8% |
| Lovex S071 | <<locked>> | 98% | 54,766 psi | 86% | 2930 fps | 99.9% |
| Norma 204 | <<locked>> | 86% | 54,621 psi | 86% | 2963 fps | 98.6% |
| Norma 217ᴾ | <<locked>> | 100% | 41,495 psi | 65% | 2844 fps | 97.4% |
| Norma MRP | <<locked>> | 92% | 55,274 psi | 87% | 3068 fps | 99.7% |
| Norma URP | <<locked>> | 86% | 55,724 psi | 87% | 2972 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 57,276 psi | 90% | 3091 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 86% | 54,317 psi | 85% | 2972 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 98% | 55,985 psi | 88% | 3035 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,319 psi | 60% | 1909 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 57,493 psi | 90% | 3015 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,027 psi | 86% | 3038 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,274 psi | 87% | 3136 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,734 psi | 80% | 3022 fps | 96.1% |
| Rottweil R 904 | <<locked>> | 90% | 55,376 psi | 87% | 2949 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 92% | 56,898 psi | 89% | 3018 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 84% | 56,347 psi | 88% | 2930 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,216 psi | 87% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 56,695 psi | 89% | 2953 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 57,000 psi | 89% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,534 psi | 85% | 2858 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,449 psi | 88% | 3015 fps | 99% |
| Somchem S355 | <<locked>> | 82% | 57,580 psi | 90% | 2933 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,913 psi | 89% | 2936 fps | 97.5% |
| Somchem S365 | <<locked>> | 88% | 56,231 psi | 88% | 2982 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 54,520 psi | 85% | 2943 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 82% | 55,158 psi | 86% | 2854 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,493 psi | 90% | 2963 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,753 psi | 89% | 2966 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 86% | 56,855 psi | 89% | 2969 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 56,449 psi | 88% | 3005 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,926 psi | 86% | 3051 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 98% | 55,463 psi | 87% | 3041 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,376 psi | 88% | 2913 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,492 psi | 87% | 2989 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,479 psi | 90% | 3163 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,087 psi | 89% | 2982 fps | 99% |
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% | 37,623 psi | 59% | 2605 fps | 97.4% |
| Accurate 4350 | <<locked>> | 80% | 48,544 psi | 76% | 2844 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 44,425 psi | 70% | 2864 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 88% | 47,819 psi | 75% | 2920 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 39,914 psi | 63% | 2697 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 88% | 45,818 psi | 72% | 2858 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 96% | 44,251 psi | 69% | 2812 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 92% | 36,013 psi | 56% | 2674 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,335 psi | 63% | 2700 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,335 psi | 63% | 2700 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,150 psi | 71% | 2831 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,706 psi | 81% | 2953 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,045 psi | 63% | 2697 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 82% | 38,551 psi | 60% | 2703 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,186 psi | 55% | 2621 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,227 psi | 49% | 2530 fps | 95.6% |
| Alliant Reloder-26 | 57.2 gr | 80% | 38,261 psi | 60% | 2759 fps | 98.9% |
| Bofors RP15 | <<locked>> | 86% | 40,567 psi | 64% | 2749 fps | 95.6% |
| Bofors RP30 | <<locked>> | 92% | 41,017 psi | 64% | 2792 fps | 95% |
| Bofors RP5 | <<locked>> | 82% | 38,551 psi | 60% | 2703 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 50,227 psi | 79% | 2825 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 42,772 psi | 67% | 2785 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 48,979 psi | 77% | 2874 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 51,169 psi | 80% | 2881 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 86% | 45,948 psi | 72% | 2802 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 88% | 47,863 psi | 75% | 2841 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,178 psi | 68% | 2720 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 38,276 psi | 60% | 2772 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 48,196 psi | 76% | 2897 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,224 psi | 44% | 1670 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,411 psi | 71% | 2756 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,807 psi | 80% | 2841 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 45,658 psi | 72% | 2779 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 86% | 47,471 psi | 74% | 2799 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 88% | 44,440 psi | 70% | 2838 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 49,327 psi | 77% | 2805 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 47,863 psi | 75% | 2799 fps | 98.9% |
| Lovex S071 | <<locked>> | 80% | 33,112 psi | 52% | 2493 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 45,339 psi | 71% | 2792 fps | 96.7% |
| Norma 217 | <<locked>> | 96% | 36,825 psi | 58% | 2730 fps | 95.6% |
| Norma MRP | 55.5 gr | 80% | 37,826 psi | 59% | 2717 fps | 96.3% |
| Norma URP | <<locked>> | 80% | 46,746 psi | 73% | 2818 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 44,179 psi | 69% | 2844 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 45,324 psi | 71% | 2808 fps | 99% |
| Ramshot Magnum | <<locked>> | 86% | 37,681 psi | 59% | 2674 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,022 psi | 45% | 1713 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,645 psi | 75% | 2854 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,208 psi | 71% | 2861 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 35,491 psi | 56% | 2690 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 47,500 psi | 74% | 2959 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 82% | 43,700 psi | 68% | 2730 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 80% | 39,697 psi | 62% | 2687 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 50,227 psi | 79% | 2825 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,327 psi | 77% | 2805 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 47,863 psi | 75% | 2799 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,969 psi | 85% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,385 psi | 76% | 2749 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,334 psi | 62% | 2684 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 54,360 psi | 85% | 2884 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 47,572 psi | 75% | 2776 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 43,918 psi | 69% | 2782 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,640 psi | 64% | 2677 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 80% | 52,025 psi | 82% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,008 psi | 75% | 2808 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 82% | 37,463 psi | 59% | 2598 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 47,514 psi | 74% | 2815 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 39,639 psi | 62% | 2703 fps | 99.5% |
| Vihtavuori N560 | <<locked>> | 86% | 45,614 psi | 71% | 2874 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 92% | 46,122 psi | 72% | 2867 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,601 psi | 73% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,979 psi | 77% | 2874 fps | 99% |
| Winchester StaBALL HD | 54.9 gr | 80% | 31,908 psi | 50% | 2651 fps | 99.8% |
| Winchester Supreme 780 | <<locked>> | 82% | 39,349 psi | 62% | 2648 fps | 95.1% |
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 .270 WSM loaded with the .277 | 140gr | Berger VLD Hunting. Winchester StaBALL HD delivers the highest muzzle velocity at 3,163 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,163 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 (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.277" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Winchester StaBALL HD, Norma MRP, Alliant Reloder-26 rank at the top here: for .270 WSM with the .277 | 140gr | Berger VLD Hunting 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.