I have been using Remington large rifle 9 1/2 primers for my .308 load. I am loading 42.9 grains of 8208 with a 168 gr HPBT and getting 2507 fps muzzel velocity. It doesn't seem to be a "hot" load and well within reccomendation but the primer cups are burning pin holes through about 20% of the rounds right at the inside corner of the cup. Bad lot? Any advise would be greatly appriciated.