I will start with the disclaimer that I'm new and don't pretend to know everything. I have had what I consider good luck with working up a load for a 308, but I have since built a 7RM and having some concerns. I did a couple ladder tests working up in half grains increments. 180gr bergers, retumbo, 0.015 jump and found a good node at 70.0 gr. With my 308 I used a Lee collet neck sizing die, but with the 7mm the once fired brass chambers hard. I didn't see any signs of pressure when working up but I have not encounter this yet and don't have any mentors to ask. So, should I FL size and not worry about it. What am I missing?