My brother just bought the above SPS last friday along with new Winchester brass which we checked with a Wilson Case length Gauge. After loadin 5 rounds of 308 we chambered a round and it was very difficult to close the bolt handle. Then tried the brass without a projo, same problem. Lugs were properly lubed & rifle was properly cleaned before hand. Did the same thing with new 308 Lapua brass without a projo in it, same problem. When brass was extracted it also had longitudinal scratches on both brands. Seemed to have <span style="font-weight: bold">very</span> tight head space. We moved the shoulder back about .005 still above minimum dimension on Wilson gauge and it seemed to help some. But we shouldn't have to taylor the brass for his rifle. Neither brass caused problems in any other of our 308's We suspect a factory head space problem. Has anyone else has the same type of problems?