go with 24 and UP!..my supernova has a 28" barrel and it throws extremely tight patterns. Maybe too tight sometimes. I posted a picture a while ago with the picture of a flight control wad sticking into the paper and a hole in the turkey target the size of a lemon. All that was at thirty yards, while it looks cool, maybe it is a little tight, but if fella's can hit a turkeys bobbing head with a gobbler guilliotine, then i have faith I can do it with a shotgun! lol But barrel length doesnt really matter tho.. if you're recoil shy, then 28 is definately your choice, it adds alot of weight and with a ported choke you can actually tell a difference in barrel jump. But it all comes down to personal preference. My buddy hunts with a 20 inch barrel and he will argue with me for days.. but i love my 28" barrel.. puts my 8 inches closer to the turkey! lol:cool:
But as long as you have a benelli... I dont think barrel length will matter, that turkey is going down!