3" groups is sort of okay for now... Work on shooting more and more with field tips, and the groups will get tighter and tighter.

I'm no world class archer or anything special, but I have busted nocks and ripped fletchings at 20 yards using only 3 arrows with field tips (darn near Robin Hooded one of them!). 30 yards, I can get about 2" groups, maybe smaller if I really concentrate. 40 yards(max)?? I don't know... probably 3" groups.