Howdy As has been stated, most likely the transfer bar was jamming under the firing pin because the cylinder pin had jumped forward under recoil. Very common with Rugers. If the cylinder pin jumps forward, the little spring loaded plunger at the rear cannot do its job of shoving the transfer bar back so it will clear the firing pin on the way up. Very common with Rugers. As has been noted, I find it is usually best to get on the phone and actually talk to someone, rather than rely on email. Yes, getting a Ruger back together again can be difficult. I don't remember the last time I did it, probably quite a few years ago, but getting the spring for the loading gate in position is always challenging. I find that once the spring is in the proper position, do not cock the hammer until the gun is completely reassembled. If you cock the hammer before compete reassembly, the spring can pop out of position. Very annoying. Next time when something feels wrong, don't try overpowering it. Find out what the problem is.