I have the Franchi Affinity with the 26' barrel. With Fed HW 7s, I settled on the Carlsons' choke. This gave me a more consistant pattern than than the Hevi choke and Hevi 7s. Try the Carlsons' and I think you'll be pleased. I don't remember how many pellets I had at 30 and 40, but that's what I'm using.