I would really like to know where you came up with that opinion!!! There's NO WAY a marlin/glenfield model 60 will EVEN come close to a custom 10/22. I know this from literally dozens of both models over the years. It seems you have very limited experience but that gives you no reason to act ignorant in making a statement like that. ALL the 10/22s I build as full customs(not just slapping a barrel/stock on and calling it building) will group at LEAST .300 at fifty yards for 10 shots and usually going into smaller groups than that.