None of the new brass that I have found is over. .013 that is why the the new reamer was made. Like I said I turn mine to ..012.3. LarryThat is not what I consider safe. What happens if a little carbon is in chamber? What happens when a case has a.014 wall? They aren't exactly the same from factory. Larry running more clearance usually enhances accuracy and gives you a little wiggle room for safety. Matt