I’m not ammo dumping with my AR, I’m their grouping 10shot groups. I single feed all the time, since that’s what we have to do during mid range prone shoots.. the one club i belong too has rso’s they do a pretty good job keeping everyone honest..
My club also had (still have) RSO's. At one time, they were required to be there anytime there were people there shooting. Now it's not a requirement, so you get dip chidts coming out doing what ever the hell they want... Now, when we are doing a shoot, they either have to join in, or leave...