Wouldn't a heaver barrel help in a quicker re-acquisition of your target...or am I just not thinking that threw? Would some one set me straight on this?
Well, the extra weight does lessen recoil, but every time you move the shotgun you have to overcome the inertia of all that weight, so there's a definite trade off. Shotgun handling is all about balance and a 7 round magazine filled with shotshells already makes for a pretty barrel heavy gun. There's no need to make it more so with a heavy barrel.