I have been working on casting some of my first .45 rounds for my Para expert 1911 and I'm having some issues that I'm hoping those with more experience can help with. The bullet is a 230 gr. TC. The first 10-20 rounds I loaded functioned fine and ran better than expected, however I am running into an issue with the bullet being a tight fit no matter what OAL I have tried, all the way from minimum to max. Any time I chamber a round to check fitment I find that it has this ring around the base of nose just before the mouth of the case, sometimes I'm able to remove the round easily, and some have became stuck slightly. I have sized and lubed, checked and rechecked and I'm at a loss for what I may be doing wrong. Any help would be greatly appreciated.