I have a Taurus 81 series snubbie in 38 cal. The gun has less than 300 rounds through it. I've noticed that when I fire in single action, it fires every time. When I fire in double action however I get light primer strikes on maybe one or two in a cylinder. I can rotate back to the misfired rounds and try double action several times yet they still fail to fire. If I then try it in single action they fire perfectly. Any ideas guys as to what I can do to try and fix this short of returning it to Taurus repair?