Adam,
On the first few days of the season the 2 1/2" loads with 1/2 oz. 8s work fine, as long as you do a good job of limiting yourself as to distance. Later, I like the 11/16 oz. loads. I actually didn't believe the 1/2 oz. loads could be that effective until I tried them, but they actually work quite well on close doves.
Each gun can be different, so pattern a few of several different loads out of your new gun to see. I suspect the surprising effectiveness of the "shortie" load is partly due to better patterns than the 3" load, with my gun, but that it is mostly due to me being so conscious of the small payload that I just let 'em get a little closer. Limit it to 25 yards or less and you can't blame a miss on the little gun, IMO.
SRH
Last edited by Stan; 08/10/15 02:37 PM.