How hard is it to change barrels on a revolver? I have a S&W 686,6in.that I bought used several years ago. It has no sights, just a Weaver type rail to which I have mounted a scope and now have a dot site. The barrel has been ported with 6 approx. 1/8in. holes, all on the top side. I plugged 3 of the holes by tapping and installing Ssteel screws because it fogged my optics with muzzle flash/gas. It has had an action/trigger job and has sweet SA trigger pull at a little over 2lbs. I want to install a barrel with a front sight and just go back to regular adjustable sights. Can I just get a new barrel and install it myself with a bench vise and a pipe wrench, or is it beyond the skills of an ametuer? It is very accurate in its present condition, but I am trying to get back to basics. Should I just keep it the way it is and sell/trade for what I want?