I was preparing to adjust seating on Sierra 135gr for .308. I didn't want to waste any bullets when checking for O.A.L., so I of course pulled them with a RCBS hammer. There were some brass discolorations where the bullet was seated but other than that unremarkable. In years past I would use the bullets/rounds as fouling shots. So, does the use of a kinetic puller distort the bullet as to alter it's accuracy?