Quote:
Originally Posted by gboling
Instructions with my Lee dies warn against chamfering any cases. The de-burring tool is for de-burring not chamfering. Chamfering weakens the case mouth causing premature splitting at the case mouth. The flairing tool, if properly used, will prevent peeling lead or copper from bullets.
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With close to 40 years of reloading behind me, all I can say is chamfering both rifle and handguns case has worked for me, and a split case mouth is a rarity. I suppose one could chamfer a case mouth to nothingness and make it split, but it hasn't happened to me.
Make your own choice, it's your cases. I know what works for me.