I'm well versed on the M77/22's but somewhat new to the 10/22's. That being said I know several people who are very versed in them that have had good luck bedding them both ways. As long as it is done right is what is important. Now if I was going to build one (10/22) as a dedicated target rifle for competition I think I would look hard at bedding the barrel and floating the action, especially if a heavy target barrel was to be used.
