We cant rifle hunt here in eastern Va so everyone here uses buckshot (very few countys allow slugs) I actually found that extra full with 00 works best out of my rem 11-87 The choke is called a buck-kicker it is ported and extends about 1.5 inches out of the barrel They make them specific for different size buckshot. Iam sure they make them for Benelli. At 50 yards it puts the entire 00 load within a 3 foot circle and alot of the pellets are doubled up within an inch or two of eachother so if one pellet gets him odds are at least 2 will get him. I shoot winchester supreme. but your gun could do something completley different but mine loves it.

Good luck