no 23 sleds? so fucking run the 22's again. now they'll definitely be broken in and the whiners can stop whining about that issue and move onto the next excuse
It all depends on the rfile, barrel length, twist rate, etc. But MOST of my .308 stuff shoots 165 to 168 grain rounds significantly better than 180.
Grab a bunch of different rounds, go to the range and see what it likes to eat.