I'm having a hard time getting the caps on my Pietta 1860 revolver to fire reliably. I've switched out the OEM nipples for Track nipples and I'm using the caps track recommends, CCI No. 11s. Everytime I get 2 to 3 in a string of 5 shots that fail to fire. If I turn the cylinder around and wack that chamber again, those 2 to 3 will fire on the second strike. This makes me think that I'm not seating the caps correctly, so I whittled down a piece of dowl rod to use as a tool to push the caps into place. I think I'm seating the right, but still can't get 2 to 3 out of five to shoot on the first hit. Any advice?