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The ADI manual lists someloads for 180gr in 270WSM
2217 start 59 max 63 2,718 62,800psi
2225 start 62 max 65 2811 63,000psi

Their 160gr loads
2217 start 63 max 66.5 2913 63,200psi
2225 start...

If you can get them that fast it will be worth it.

The 170 EOL probably won't be worth worring about unless you are going to go with something like a 270 Allen Mag. I doubt if you can push them fast enough in a 270 WSM to give you enough of an...