Your buddy is right about your gun. A decent pattern would be about 30 or more hits in the vitals at 25 -30 yards. when I say vitals I mean Brain and Neck vertabre. I don't count any hits in the fleshy part of the neck. Primos makes a really good turkey pattern. It's a actual X-ray of a turkeys head and neck
Before you buy another choke I would try some Winchester extended Range loads. I like #5's. If that doesen't work then maybe try another choke. I'm not to familiar with the gun you have so I really cant recomend a certain brand of choke.. I use a undertaker by HS Strutt. It has a .675 constriction. Works great with win Ext Range loads...
Good luck on your quest it might get a little expensive
