Great thread!
I’ve had this happen with my 270 and was wondering if it was the expander ball stretching the case back out, when retracting out. It feels likes it’s hard to pull out.
Or as other said . Squeezing the case too much and Pushing the shoulder out.

Last edited by Dre; 01/07/21.
All of them do something better than the 30-06, but none of them do everything as well.