I bought a Beretta 425 to use as a dove gun and the full choke barrel shot such tight patterns that I considered it unusable. If I could hit a bird at 25 yards, there would have been nothing left to eat.
I made up some loads with 3 different type of spreaders, and found that the Polywads produced the best patterns for dove hunting. I read about the folks that were putting part of the shot over the wad and made my shells that way. It made the gun very usable, and the donut hole was eliminated.
I posted pattern pictures on here, but that was 7 or 8 years ago.
