The barrel needs to go back at least 1/4" more, if not more. All of Dunlaps stocks are this way unless he recently made new patterns.
And you should go back Before you inlet it Down, or you are going to be gluing in slivers of wood.... I have built over a dozen of his stocks & all them were the same way. I prefer to hav to move the barrel back, as you cannot move the lock inlet. You CAN move the barrel back. I prefer no lock inlet at all, but all of Dunlaps have the lock inlet 3/4 way cut in.