I would never use the look of a primer as a true pressure indacator. I read that it takes lots of pressure to flatten a rifle primer.
The ways I use and I am no expert at it , just what I have read .
On lifting the bolt handle ,dose it stich or any extra resistance ?
I mik. the case just in front of the web ,is it the same or less exspansion as factory ammo ?
What bullet and load data are you using ? I looked at my Hornady book and Varget with 150 gr bullets tops out at 44.9 gr