as suggested how many times can u fire your firearm before u have to clean it at the range . I found after my 3rd shot the 4th u need a hammer to get in .using a omega 50 cal. I have jackets projectiles and pure lead ones both using the plastic skirt also using pellets. do u scrub with a brush and cleaner or just a brush then patch. do u rebutter the barrel and start fresh or just keep jugging lead thanks