I was at a gun show a couple weekends past, and I was talking to a man who sells handloads. He told me he was hunting for elk in Colorado, and the temperature was 11 degrees below 0. He was using nickle plated brass, and when he took a shot at an elk the nickle seperated from the case and stuck to the chamber. He could not chamber another round, so he had to take the rifle to a gunsmith to ream out the nickle from the chamber. Has anyone run into this problem? [&:] Thanks in advance.