I was going to use a simple laser pointer in the chamber of the 03/M2 Springfield rifle. Can't be much worse than using one of the cheap lights that get terrible revues, so I thought I would improvise. Any tips on how you like to dial in your scopes that are cheap, easy, and efficient other than just throwing rounds down the range? Got a Nikon Prostaff 3-9x40 and will also have to get some new Weaver high rings to get it mounted on this vintage Springfield that kicks like an injured mule . . .