Seems like a good bit of 20ga guns I have seen have at least one full choke barrel and a good bit of them with both full. Not that I have personally seen many 20 gauge doubles but it just seems that the ones I have, sport tighter chokes.
What was the thought back them that more guns had tighter chokes than more open?
I am in quail country so an open choke is my preference plus well I am not that great of a shot. getting better though.