Rooster XR 12 gauge only but a 2 3/4" shell with 5 or 6 shot , maybe 4's too?
Also some more Rooster XR in 3" with 4,5,and 6 shot, lighter shot charges with higher velocity.
All have the shot-lok resin.
Bought some 2 3/4" 6's at BPS and some 3" from cabelas on line. Haven't had time to pattern any though.