I am more a flintlock guy but I do have a few cap guns. I usually get them out once or twice a year to put a little lead through them. One of my cap guns is a 1860 Pietta 1860 revolver. I was at the range today and my revolver worked really hard once loaded with a cap. Everything was clean, caps went on as far as normal. Used the same caps Remington #10 that I have always used. I disassembled it to check for small pieces of metal in the action. None that I could find. Any ideas on why it's works hard. I guess I should give a better description the working hard. Pulling back the hammer I had to use to hands or thumb on hammer and one one the cylinder to cock it. The strange part also is it didn't always do it. I did not see any caps rubbing anywhere. Any guess of what the issue is? Thanks for any input you have.