Okay so I want to chop the barrel on my Maverick 88 12 gauge myself. Buying another barrel is not an option regardless of what it costs. I have other shotguns so this is the one that I want to chop. My plan is to cut it down to 20 inches and I want to measure from the very tip of the Barrel 8 inches back towards the chamber is this okay to do? Next question is what is the best method to chop it can anyone give any insight? thanks.