Last weekend, I tried some Harnady Match Superformance 168g with A-Max bullets in my .308 win Savage 10...
First shot I knew right away that the load are more hot.
I inspected the case and there was a discrete gery contour around the primer. I thought the cartridge was to be like that and I had not seen.
I inspected all the others cases after each shots, no overpressure signs...
Then I fired the 10th shot... the bolt was very hard to open...
The case has not ejected and is stuck there...
When I finally get it out, the primer fall into the mag...
At that moment I knew to not shoot another one
I re-inspected all the cases and found another one with overpressure signs but that is much less obvious !!!
So 3 cases out of 10 rounds show overpressure !!! Jeez that's alot !!!
I seriously need to write to Hornady...
I dunno if its a bad batch or what but they must know it.
So people, be carefull with the Superformance !!!
Hornady make really good quality stuff but they just have a technical problem.

First shot I knew right away that the load are more hot.
I inspected the case and there was a discrete gery contour around the primer. I thought the cartridge was to be like that and I had not seen.
I inspected all the others cases after each shots, no overpressure signs...
Then I fired the 10th shot... the bolt was very hard to open...
The case has not ejected and is stuck there...
When I finally get it out, the primer fall into the mag...
At that moment I knew to not shoot another one

I re-inspected all the cases and found another one with overpressure signs but that is much less obvious !!!
So 3 cases out of 10 rounds show overpressure !!! Jeez that's alot !!!

I seriously need to write to Hornady...
I dunno if its a bad batch or what but they must know it.
So people, be carefull with the Superformance !!!
Hornady make really good quality stuff but they just have a technical problem.

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