ok so yesterday im sitting around the house with my wife, as im reloading she comes up wit an idea. most of u have seen the 5.56 LC ammo that coms wit a green colored tip. so she wants to use finger nail polish on my reloads to decipher the different charges i use, i know i can just write them down but keeping them color coordinated seems like a good idea. Having said that what would finger nail polish do to the barrel/rifling???? just wanted to put it out there for opinions. remember this is a womans idea and quite frankly anything i can do to get her into shooting im down with. thoughts????? opinions????