I wanted a Savage 25 Walking Varminter, but found out the waiting list might be several months and that is too long to wait.  My neighbor bought a Tikka in .223 a few months ago and likes it.  His groups are outstanding.  I'm looking for a coyote/groundhog rifle and now am seriously considering a T-3 Lite in .223.
Is there anything I should look out for?  He gets his tightest groups with 60 gr. bullets and I want to load a lighter bullet.  I wonder if the Tikka rifling twist needs a heavier bullet.  Any info and/or suggestions appreciated.