We did not obtain this powder to generally be as accurate as its sister powder, WInchester Autocomp. This is with a CZ P10c 4" barrel with common sights @ 5 yards. Your a reloader start off small and work up. OAL might make a giant change in velocity and tension. https://elliottspljf.ka-blogs.com/79702488/new-step-by-step-map-for-cfe-pistol-9mm-load-data