Recently started using Fiocchi and really like them, always used CCI's but have been hard to find lately. The Fiocchi's are also less expensive, 12K for 300. Hardness wise they are between CCI and Winchester.
I also purchased the Mr Bullet feeder powder funnels in both 9mm and 45 acp. I was having an issue with concentric seating not really shaving, after installing the new funnels my issues are gone! I have not had a catridge fail a gauge test since I installed the new funnels.