Originally Posted by Glockz0r
I took a look at the brass again, and after googling what to look for, I have to say the primers are indeed flattened. All 165gr that I've fired have flat primers while the 180gr are half and half. I also observed that the 180gr brass has very minor smiles or no smiles at all while the 165gr is almost all creased.
Do you know why there is a difference between the two loads? The calculated recoil is about the same. I too would like to know the reason for flattened primers.