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just went and helped a bud choose a new duck slash clay slash dick around gun . big five had the 500 camo combo 28 dual bead barrel and 24 rifled barrel . told him it was superior to the 389 dollar black nova 28 , 40 bucks less 2 barrels . novas nice but more for less . anyway . PORTED BARREL the 28 barrel has a full choke ( kinda cool ) but has holes ( porting ) . what do the holes or porting do ??????
