Update: I had a friend in town who loves to shoot but hardly gets out anymore. I used my BR 550 410 and just shot report pairs because I wanted him to feel comfortable shooting targets he had never seen before and a gun he had never used before. We typically shoot 2 pairs at each station then switch guns and go again. We were 2/3 around the course when my friend asks " have you missed yet?" Thanks buddy, I dropped the next 2 targets and missed 1 more in the round. I think between shooting 410 and a heavier gun with light loads I am working my way past the flinch.