Easiest thing to start with is to throw a couple of business card shims under the chamber to get a temporary free float. that will tell ya whether free floating is going to help and is easy to do and then undo without any permanent effort. Free floating almost always seems to improve accuracy, but this is a nice easy temporary way to give it a try without any permanent changes. If it works, bed it and go. From there trigger and crown are the next two for me.
