I've never actually patterned my shotgun at one of them fancy targets so I would have a pellet count, honestly didn't think turkey hunting would be that much fun....man was I ever wrong. Anyway, what I've got is a Mossberg 500 and if they're not pretty much in my lap (20-25 yards) I consider them out of my range. I've rolled a couple just beyond that and won't take a shoot past that now. The extra full choke that came with it measures .680 (inside) and what I've looked so is .675, .670, .660 and .640. Out of them choices what would y'all consider a good starting point. The .675 is a Hunter's Specialty and the others are Carlson's.