Has anyone had any problems with winchester primers in a redhawk? I had two rounds (out of 25) that did not fire and in both cases the primers were bearly marked. After examining all the fired cases the primer indentation was fine. One of the two rounds I "re-fired" and function was normal. I am not sure if a couple of the primers were exceptionally hard or if a malfunction occured with the redhawk. The redhawk has less than 500 rds. Any thoughts???