I have a M1 with the 24 inch barrel that I bet doesn't have 30 rounds through it. It sits in the corner and is as stock as it came from the factory. EVERY time I watch Tom Knapp, Benelli's sponsored trick shooter, with his M2 with mag extension, I want to send mine off and have about 3 inches taken off the barrel, re-threaded for choke tubes and add the mag extension. Then I would be good to go. I don't think losing that 3 inches would affect it that much if I then took it out squirrel, rabbit, or bird hunting or shooting clay pigeons. Of course if Benelli didn't price their freakin' barrels so damn much I'd just buy a shorter one.
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety"