And last time I checked, .30 Carbine brass was not crimped by LC or anyone else loading for Uncle Sugar.
The crimps on .45 and 9mm brass are usually so light, they just make seating primers a little stiff.
Ah, but you're talking rifle, aren't you? Even "Special Ball" intended to sorta replace 7.62x51 Match had crimped primers. That's the USGI brass without the NATO circle...