I got a new x-bolt Medallion model with an octogon barrel. It sure looks good but so far it shoots just "o.k." but not great. I ran a few different kinds of factory ammunition through it ranging from Fusion 95gr to Federal Premium V-shok 70gr. Groups are ok. but not sub-minute of angle. Some of the better ones are like 2 inches for a 3 shot group. The worst ones were more like 4 inches. Does anyone have a particular factory load they find better than others?