[IllinoisCoyoteHunter]

That seating "bulge" is there for a reason...it provides needed tension to hold the bullet so there is no setback when chambering (on auto loading pistols).

If you are getting excessive "bulging" to the point where the rounds won't chamber, then your flaring die is not set up properly.

Generally, when shooting lead boolits, the case bulge is more dramatic.

Just for clarification, I am calling the case "bulge" the part of the brass that is slightly bulged out after seating a bullet in the case.

Eliminating this case bulge will inadvertently swage the bullet down and leave less case neck tension, which can lead to big problems with bullet setback.