i have a savage mkll in .22 and have done some custom work on it already. ive cut the stock to form a pistol grip and molded it with bondo. make a custom skeleton stock so it would meet fed. regulations. cut the fore end off of the stock so that its about 6 inches infront of the mag. now im looking to cut the barrel. i want to know if accuracy will be affected. im looking to take it to 16 or 18 inches maybe. i only shoot subs out of it so velocity isnt that important. i also need to know what i should do besides cut it straight,file and debur the inside of the barrel.