I have the RCBS hand primer with the round tray that uses shell holders. I have used it some and not liking how it varies in primer depth in lapua 223 brass (from .001 to .009 and avg of .003). Got to looking at it and noticed the metal rod that you put in the hole that primers come thru is leaning to one edge of hole away from tray. Is this normal for this unit or could this be causing me problems? I put this priming rod in as instructed with round end down in hole. Thanks for any help.