Yeah, walnut is nice to work with. I need to open up the trigger area inside the stock because I use an aftermarket trigger, then I need to open up the barrel channel a little bit because this barrel uses a barrel nut to hold it on which the originals did not. Next is the recoil lug on my rifle is precision ground .250", which originals were thinner so the sl9t in the stock is just a little too small.
Once I get all that to fit, then I go and remove a bunch of material around the action and install pillars, then epoxy bed it.
-X