If you continue north on Route 1 from Freeport you will find a gun shop about 3 miles or so on the right. It's called C&R Trading post. Not exactly known for doubles but you never know what you'll find. If you're heading north at all on the Maine Turnpike there is a shop off the Gray exit called Howell's. He's got some doubles. Turn left when you leave the turnpike and it's on the left about half a mile down Rt 202.