Gaznazdiak wrote:I'm not trying to be argumentative here marksman, I appreciate your input, but if you look closely at the pics the uncrated one has an even, round profile from the outside edge and over into the pin impression, whereas the cratered one is distinctly flattened around the crater.
The pin impression on the uncatered is also far deeper than the other, which looks to my barely tutored eye to have flowed under force into the firing pin hole in the bolt.
I would suggest that your firing pin hole is a bit sloppy causing the cratering
the edges of the primers are both rounded, no pressure
rem 7.5's are a good primer and are supposed to be a thicker cup but they measure 20 thou and the cci's 25 thou
honestly try the cci br4 or 450 mag primers with that load
check out these primers from factory ammo
the hornady has rounded edges on the primer but a very slight crater, but I would consider it mild and safe
the s&b is totally flattened and probably has an enlarged primer pocket, this I would say is on the edge but I must assume it is safe as it is factory
I would never load to this level of flattened primer even though I don't believe in looking at primers for pressure
measure the case head its much more reliable