hello,
took my new Swedish m96 rifle out for the first time the other day, and fired a box of S&B 6.5x55SE 140gr FMJ. Virtually all the primers on the brass were set back after firing (they were all set in originally). 3 primers were completely pierced, but no sign of any gas blow-back. Wondering if this is a known issue with the S&B, or if there might be a firing pin protrusion or headspace issue (if so, how can i check?). Perhaps its an issue related to the cold, since I was firing outdoors in -30C weather.
thank