First off I'm a newbie to this forum and real newbie to reloading and long range shooting/hunting. I have a rifle that I would like to use for long range varmint hunting but I would appreciate some feedback. I recently perchased a steyr sbs prohunter..stainless.23.6" barrel. in 6.5x55, which is probably my favorite chambering so far...(still working on optics) One day I will change to a heavy barrel and custom stock as i love the action and trigger of the steyr. I plan on using 140gr nosler custom comps..lapua brass, reloader 22 or reloader 19 and some federal 210 or 210M primers. Is this an adequate setup for 300-600yard shots. I do like to dream and would hope to be able to nail a ground squirrel at these distances, one day. not the preffered choice of rifle I know but it's what I have. Would I benefit from either powder or primer chosen and would moly coating my bullets help?