As muleyfever said it’s real easy to open up the barrel channel on a factory T3x stock. Do that before you dip it and cerakote so you dont mess up your camo job. Search “open up barrel channel” and you’ll see different ways to do it. I took some 80 grit sandpaper and put a piece of packing tape on the smooth side. Then I loosened up the action screws and run the sandpaper back and forth against the barrel (with the smooth side against the barrel). Factory tikka socks are usually $75 or less on here so if you F it up just get another one out of the classifieds. I put a rattlecan camo job on several of my tikkas. Little spots have rubbed off here and there, but you know what… I have more paint.
YMMV and remember this is free advice you got on the internet from a guy you don’t know.