Took my newest addition to the range yesterday.  Used Winchester Factory 44 WCF loads that shot 1140+ FPS.  Shot extremely high at 50 yds.  I was aiming dead center at the lower target.  First shots were over the top target.  Finally took out the rear sight elevator for the last shots.  The small leaf in the rear sight can come down about 1/8″ but I did not want to mess with it at the range for a lack of a good screwdriver.  Next time out I will shoot at 100 and take a target with a large orange center so I might be able to see that far for aiming.