The only problem this will cause is if you crimp, you will get some inconsistencies in amount of crimp. As long as the bullet seating depth (i.e., OAL) is consistent, it won't significantly affect your velocities/pressures one way or the other, but a varying amount of crimp can. If you want to have consistent crimps, then trim them all to the same length.
I try to run my brass as close to .992 as I can (just a personal preference), so if it was my brass, I would leave it alone. With the exception of the 135gr bullets, I only "crimp" enough to remove the flaring on the case mouth for positive feeding, which is really not a crimp at all. Again, this is just my personal preference. There is plenty of documented data that shows a heavy crimp can increase velocity and reduce your velocity spread, while others claim that they see very little difference, and still others seem to think a heavy crimp that leaves a large indentation in the bullet reduces the accuracy of the load.
I try to run my brass as close to .992 as I can (just a personal preference), so if it was my brass, I would leave it alone. With the exception of the 135gr bullets, I only "crimp" enough to remove the flaring on the case mouth for positive feeding, which is really not a crimp at all. Again, this is just my personal preference. There is plenty of documented data that shows a heavy crimp can increase velocity and reduce your velocity spread, while others claim that they see very little difference, and still others seem to think a heavy crimp that leaves a large indentation in the bullet reduces the accuracy of the load.
