45 acp to 45 colt

I bought a 25-3 cylinder in 45 colt and fitted it to my 25-2 pistol in 45 acp/ar. It took me about 2 hours to cut a step into the back of the cylinder to clear the frame stop. Then I filed the ejector a might so that it was in perfect time. There is less than .005 gap between cylinder and the...