How tight should arrow groups be for 10, 20, and 30 yards?
It's personal preference, really.
Well, have to agree personal preference,
I could only wish it was a preference. I'll take .5 inch groups at 50 yards please. [8D][8D][8D]
If I can shoot consistant 5 inch groups at 20 yards with my longbow, I'd consider it a good day.