Thread: The next flop?

Originally Posted by Tahr

My layperson understanding from what is being said in the blurbs is that the 80k pressure is somehow absorbed/taken up by the steel casing and standard action strength is ok.

Yeah again lay person understanding, so willing to be corrected. As I understand it, the weak link in the action is the bolt lugs and face. The still case 'holds' onto the chamber better and so less force is put on those weak areas.?

Originally Posted by whanahuia

Yeah again lay person understanding, so willing to be corrected. As I understand it, the weak link in the action is the bolt lugs and face. The still case 'holds' onto the chamber better and so less force is put on those weak areas.?

I would guess "holds on to the chamber better " and due to less stretch than brass there would be less or no more bolt thrust.

Modern steel ( and some old steel ) can easily contain chamber pressure in the barrel shank and receiver ring.
It's usually backwards pressure that is harder to contain

What I find interesting about this is that the self contained cartridge really hasn't changed a lot in well over 100 years.
A lot of the incremental improvements have come from a gradual increase in chamber pressure as the firearms industry has been able to improve designs and materials to contain that pressure.

This new 7mm case is just another step along that continuum.