my point was HOW MANY HAVE TIME TO SHOOT LIKE BENILLI GUY?not most of us.soooooooooooo,we all need the 12 ga with extra bbs and power on tough birds like a pheasant.
yes,if you practice a lot with 20 ga, NO DOUBT YOU CAN KILL A PHEASANT.
but todays birds run ,then fly and shots are over 30 yds mostly after birds are hunted............

you know, a 12 ga only weights 1 pd more than a 20 ga and shells are cheaper.
20 ga beretta is 6/ and1/4 pds and my 12 ga beretta is around 7 pds.