Not sure of exact round count, but I will conservatively say 1000. I ran 40.1 grains of H4350 behind 147 ELDM for most of those rounds. I never could get this barrel to shoot as well as I would like. With the above load it did about 1-1.5”. I only tried 147 and 140 ELDMs and 140s did about the same. Would make a great medium range hunting barrel. I spray painted the barrel black, it is stainless underneath the paint. Marks in the paint are from taking it off. No barrel nut included. $55 shipped.