We didn't find this powder being as accurate as its sister powder, WInchester Autocomp. That is having a CZ P10c four" barrel with standard sights @ 5 yards. Your a reloader get started reduced and function up. OAL might make a huge variance in velocity and tension. Further seating suggests https://cfepistolfor9mm08631.designi1.com/48532778/the-hodgdon-cfe-diaries