While dryfiring my 442 today I noticed that something strange was happening. When canting the gun to the left, right-handed shooter shooting strong hand only, occasionally the cylinder would not lock before the hammer dropped. If I touched the cylinder it would click into place, but if I carefully grab the cylinder, I am able to move it clockwise. This only happens with the gun canted slightly to the left. The gun has about 500 rounds through it, mostly standard pressure, and about 50 rounds of Speer 135gr +p. I'm guessing this needs to go to back to Smith. Thanks in advance.