I shoot RR 570 tubes. They are good quality & they'll work with ya! Good people too! I haven't counted pellets but I put one in my Beretta A-400 lite 20 & patterned it the other day & it is the best pattern of all my guns. I have one in my SA-459 as well. Not the hot core numbers some get but an even pattern. My SA-459 put 270+/- in the 10 at 40yds. I wouldn't get anything from his performance shop or forcing cones lengthened but I hear his trigger work is good & of course his choke tubes are good.