I forgot to mention that my cylinder bushing on the 1883 saa is also seized in the cylinder. The bushing is a soft metal so i don't want to punch it out and risk damage. I have read that soaking it in atf and acetone works but will this ruin the patina? The pistol has never been refinished so i don't want to damage the cylinder patina. Any suggestions on what i can use to loosen up the bushing?