I took mine out just for giggles and was very pleasantly surprised. I was on our IPSC style range (no speed limit - I had a hand gun with me for 'serious ' practice), so the distance was 25 yards and the target was my "El Cheapo vital zone" (a 4 inch styrofoam plate). I had centred the rear sight but done nothing else since I was really just function testing and to my surprise I dumped round after round through the plate standing unsupported. All (about 60) rounds clustered nice and tight in a 3 inch circle. I'll have to go up to the rifle range and give it a go at real distance with a sandbag or two. I did find it much more comfortable with my Armalite lower, I discovered I'm not a fan of ambi controls on an AR. I had no problems to feed fire or eject with either the cheep PMC stuff or the even cheaper Win White Box. Incidently the WWB looked like absolute crap - case dings and porous looking brass, is that common for this stuff?