6BR Primer crater ?

[Glenner]

Please take a look at these and give me your opinions.
This is my buddies rifle, he's pushing a 70 grain bullet with 31 grains of Benchmark. We backed it off to 30.5 grains and I still think the crater around the firing pin strike looks bad.
Can bumping the shoulder too much cause this or be part of this problem?

 

[Trigger Time]

Looks O.K. to me. Why two different types of primers? It looks like the silver primers are deforming more.

 

[plainsman456]

Might be the firing pin hole in the bolt is to large or the pin is to small.If you fack down some more does it go away?Good Luck

 

[Glenner]

Two primers? He got this rifle used, it came with some ammo. The silver ones are new loads that we built with Remington primers. The others came with the rifle.....

plainsman456,
What do you mean by fack down?

THANKS!

 

[impalacustom]

Your bolt face needs to be bushed to fit the firing pin. Those aren't over pressure, look at the sides of the primers they are still rounded not flat. Try some harder primers, particulary some Wolf magnum small rifle primers. Also you can try some VV N135 or Varget if you have any. They are good performers on the 65-80gr bullets in the 6mmBR.