Hello everyone! Finally pulled the plug on a CZ 455 Tactical that I got on a great deal from a fellow snipers hide forum member. Anyway, now I'm looking at scopes, rings, etc. The one thing I have read about is the potential for the bolt to hit or atleast skim your knuckles when running the bolt. I've settled on a SWFA SS scope so that's that. I also ordered a area 419 picatinny rail to make scope mounting easier. Now the question is what ring height should I be looking at? The objective lens is 42mm. Having said that though, I don't know what the actual dimension is of the scope body at the objective lens for those curious about the possibility of barrel to scope interference. Any thoughts or advice would be greatly appreciated. Thanks in advance to everyone who replies.