Im looking at doing a savage 6x45 build on the axis action and getting my 6mm-223 barrel from jim @ apache. My question is do I want a 20",22" or 24" barrel? What is the velocity difference in those barrel lengths? This gun will be used for plinking and mainly YOTE killin. So shooting long range is at the bottom of my list, however id still like to get the most velocity out of the barrel as I can. Thanks in advance.