I'm getting a lead ring on my 45lc cartridges at the base of bullet by the mouth of the case. Am belling the case so the bullet sits to the bottom lube groove. I have tried belling the case a little more - didn't seem to make any difference. I'm sure this may have been covered; however, I wasn't able to find any post on it. I am using a beveled base bullet. Many thanks for any help.