Nobody shooting centerfire rifles winning matches and setting records ever crimps a bullet.
No they do not. They also do not shoot off the shelf hunting or sporting rifles either. Should we not use these rifles cuz the Benchrest guys do not use them? There are a lot of things the benchrest doers do that we as hunters and sport shooters cannot do. Things like load long with the bullet pig jammed into the lands, indexing every round, chambers so tight that neck sizing or any sizing is not needed, loading single shot even in Semi-autos, you know thing like this that take the place of the Lee Factory Crimp die.