These are all at 50yds. 45cal. it likes .451 balls and .018 ticking and 60 gr., 65 is good for a hunting load and the others were 55, 70, 75gr and it doesn't like them at all. 445 balls were ok but the 451 balls brought it to life. The rifles are shooters as long as you take the time to work with it. Thank YouMr. Kibler