I have the RCBS guage, and after checking a good bit of previously loaded ammo, I got the TruAngle Cartridge Run-out Correction Tool on MD's recommendation. Now, if I have something out of alignment, I can correct it.
I've just found I have an issue with a set of Redding dies. It kept making crooked ammo, so I took the depriming rod out and then measured some cases - looks like pulling the case back over the sizer button was really screwing up the straightness of the cases. I'll have to figure out if I can leave the sizer button out (I can deprime in other ways) and still seat the bullets, of try to straighten the deprime rod.
