I've posted this many times, but this always works. Make the inside of the pillars 5/16" and use these Delrin sleeves that are 5/16" O.D. and 1/4" I.D. Glue the sleeves into the pillars, coat the inside of the sleeves, pillars and the outside of the guide pins with release agent. Then bed it.
Crack the guide pins loose after 10-12 hrs. but don't remove them. When you're ready to remove the barrelled action, take a hammer and give each guide pin a good rap.
Don't use the barrel like a hillbilly with a jack handle and lever it back and forth until it comes out, That's a sure fire way to tweak the bedding you just did, particularly the tang and recoil lug mortise area. Straight up is what you want to do.
Remove the sleeves with a drill and then run a 5/16" drill bit through the pillars to remove any residual bedding compound. The sleeves both center the guide pins in the pillars and allow for clearance around the action screws.
How
any stock mfg. can in good conscience just press knurled pillars into a stock with
no compound around them makes me shake my head......