RT: I've never finished a laminated stock and am not certain is there are special precautions you need to take with those, in particular, but I have finished other 90% completed stocks and it is not difficult.
You may need to relieve some wood in the action area and the barrel channel to first get the action and barrel to seat properly and once you have done that, you can bed the action to the stock. I prefer to bed no further into the barrel channel than the end of the chamber and leave the rest of the barrel to free-float. You can use bedding compound to seal the remainder of the barrel channel to prevent moisture swelling, but just keep it to a minimum so you don't accidentally bed the barrel further down the channel.
I have found that once you get the action and barrel set properly in the wood and it is properly bedded, then I begin hand work on the finish. I will start with a grade of sandpaper that matches the level of stock finish - ie, might start with a medium grit. Where I have 'flats' in the stock I will use a sanding block to maintain the flats but otherwise it is a hand finish with sandpaper of decreasing grits first, then 4-0 steel wool, and continue with that process until you have removed any of the grain that comes up when you apply your stain. Then you can use a Birchwood Casey sealer or finisher or Tongue Oil. I like the Tongue Oil. Once the finish or Tongue Oil seals and hardens, you are done and ready to enjoy your new rifle. Have fun. HTH. Mikey.
