Thread: Pressure signs with factory ammo

Originally Posted by shift14

This. Had exactly the same issue zeroing a Z6 on my sons Sako 85 WSM. I bought some Fed blue box to get it on the paper at 100.
Had never experienced firm bolt closure and stiff bolt opening with brass swarf in the action and on the bolt face.
Cleaned, scrubbed everything.
Mate said buy some factory Norma.
Problem solved.
His prior and similar experiences were everything inside SAMMI spec but at each end of the +/- tolerances.

For what it’s worth.

B

Yes I think you might be onto something here. I just tried to chamber some cases fired with the Sauer in my Tikka, the bolt wont close, I don't think it is the case neck because I got the bolt easily to the point of closing but it wont close the final bit. However cases fired in the Tikka will easily chamber in the Sauer, these are all once fired factory ammo, I don't reload. I know this is a pretty crude way of checking chamber tolerances but I think it does tend to indicate more headspace in the Sauer. i am going back to the range now with a squecky clean barrel and chamber to check the result.