Finally got to shoot my 870 SM with my brand new Burris FF III today. First of all, absolutely love the sight. I shot this pattern with a 3.5" Nitro H517T 4x5x7 HS out of a .665 Jellyhead with a 23" barrel. It was about 48 deg and was lasered at 40 yds. Not to bad but if any of you other guys have shot these particular shells out of your 870 SM, would love to hear some feedback on what choke etc.... I would like to improve this pattern some, was thinking of trying an Indian Creek or PG in .670, any thoughts?