I had a late uncle who shot .410 at thousands of quail. Left barrel was choked at .030. He used a 3 shell in that barrel and used it on only long range birds. Funny thing is that I clearly remember him a asking a pair with his second barrels several times. I patterned it and found any shell over 1100 FPS had poor patterns but s 3 shell moving at 1100 FPS had decent patterns at 25 yards.