My son and I went out today for our first try ever at trap, had a blast, only hit 5 of 54 (I hit 4, and he hit 1). I picked up a second hand 20G a few 1500's ago, just for this purpose. I knew it had a full choke in it, but didn't want to invest to much into it if it ended up being something we didn't enjoy. Now with our first time behind us, we would like to get this set up better. Can anyone recommend (or perform) a barrel honing to remove the fixed full choke in this 20G? It's a mossberg 500CR with a 28" ribbed barrel. I know I could get a new barrel for it, but I'd like to keep it original, just because it's a personal choice.