What you have is a bulge from the bullet. You only want a slight crimp on 9mm or .40. If you overcrimp you will get tumbling bullets and lose accuracy. I always chamber check all my match ammo and even my practice loads. I have about 5K of overcrimped rounds and they tumble in my pistols but shoot fine out of my 9mm PCC so I will use them in that firearm. I only use a Lee Factory crimp die for all my pistol reloading.
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Just say NO, To any Firearm Confiscation Laws 
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