Quite the contrary, I use the Lee Bulge Buster for all of my 45 ACP. It uniforms the cases beautifully especially at the head and rim.
Some cases are harder than others to push through, but push through they all do. Once loaded, I check all 45 ACP in a Dillon case gage. Every round fits smooth and flush and glides in and out of the case gage like butter.
To date, I've never had a failure to feed or failure to return to battery since I began using the Lee Bulge Buster for 45 ACP.
In short, I'm a user and believer in the bulge buster for 45 ACP. I know there are others who feel differently, however.
Bayou