Changed my 221 from OTT last night from a target forearm to a hunting set and changed the scope from a 6x24 Weaver to a 3x12 Burris pistol scope and got it sighted in for Yote hunting this winter. Changed from Burris Sign rings to Leo rifleman rings and the first shot at 100 was only one inch left after all that. The OTT barrel is a real accurate barrel and first class workmanship.