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I've reloaded 9mm a few times, but this time I'm noticing something that I didn't notice before. There seems to me a gap at the mouth between the brass and projectile, and it goes all the way around. I look at my loads side by side with factory stuff, and it appears as though the factory stuff is tighter. If I move my seating/crimping die any lower, then the crimp becomes too much. Not sure if this is common, something I'm doing wrong, or something that was there on my last batches but I didn't notice. If there's not enough of a seal around the bullet, could it be dangerous? I also don't bother to debur my pistol loads, so I could just be seeing the effects of that as well.