The Barnes MZs are the tightest bullet I' ve ever tried to load. Even in my Knight, I have to make an appointment with my Dr. for a hernia check after loading a few of them [] !!

The newer ones are supposed to be easier to load. They slightly reduced the sabot thickness in them. Look for the packages with a little oval sticker on them that say something to the effect of " easier loading" . If you don' t see the oval - either leave them in the store or be prepared to start " pumping iron" !!