I have used both Hornady 6.5 Match bushing dies, Hornady 6.5 standard die set, and the Lee 6.5 4 die set
The Lee die had a small burr in the vent hole that is located right at the shoulder, it would scrape brass which would plug up the hole and cave in the brass on the shoulder, I took the expander out, used a 4mm stainless rod in it's place, and and turned it into a powder cop.
The Hornady match die was machined to long, and no matter what, I was unable to fully form brass until I had my shell holder machined down about 20k! ( I should send it back and have them give me a new one but I'm being lazy )
The Hornady standard 6.5 works well, and makes good brass, ( but both Hornady dies needed polishing)
I form some of my creedmoor brass for my gas gun,( hate using good brass in a gas gun) from 7mm-08 and from .243 so for me the bushing die is more useful being the necks are not all the same thickness depending on brand.