I had come across a thread on here about buying a used revolver. I ended up checking some of my revolvers that I have. On one of my revolvers the barrel/cylinder gap is not consistent. At one point I can hold it up to the light and see a thin sliver of light coming through. When I rotate the cylinder around 1/2 way, there is a bigger gap. I don't have any feeler gauges so I am unable to measure it right now. I'm sure that this will affect accuracy (difference in pressure). Would this be an easy problem to fix, or should I just leave it as it is?