Hello I'm new to Snipers hide forums and I have some basic shooting skills and I'm looking to expand upon that. I was wondering I've always been told to never let anything touch the barrel of my rifle as It effects the harmonics of the barrel.but some snipers will wrap their rifles barrels with burlap and add foliage. Is this posibility of effecting harmonics just something you accept in exchange for camo or am I missing something?