Barrel fouling question
I have a .308 H&R Ultra Hunter which takes three fouling shots before it is on target. Then it will shoot 2 to 3 inch groups at 100 yards. I thought it might have to do with the barrel warming up, but I shot it several times, left it dirty, and shot it several days later and it was still on target. The first shot after cleaning is several inches high, the second is a couple of inches high, and each preceding shot groups well. Any thoughts?