How many shots in your best group and how many groups did you fire? Apart from setting some sort of record, what's important is the size of group you can reliably fire. Without getting too deep into statistics, if you fired 5 groups and averaged their size what would it be? If it's under 1 MOA you have a fine shooting gun. Apart from getting a better scope and playing with the loads I would leave it alone as you might free float the barrel and find you get worse accuracy.
