Interesting concept

[Lone Hunter]

I think I will let someone else be the Guinea pig. I'm out. I will stay with what I have now.

 

[Shawnba67]

I think that cae is real similar to the 308 in dimensions How might a 308@80k psi change FTR class!!! or even F open!

 

[MikeMcCasland]

I think that cae is real similar to the 308 in dimensions How might a 308@80k psi change FTR class!!! or even F open!

Looks like a regular ole 308 to me!

 

[maxscm]

Ok
Who going to be first to neck the 277 Sig down to 6mm something.
I’ll buy one. Fast and Furious.

 

[rsmithsr50]

a lot of short range br 6ppc are real close today.

Just think an 80,000 PSI Explosion Right next to Your Temple. hmmm.

 

[Twicepop]

A three piece case, what a great idea.....NOT. Three pieces, 3X the possibility of a dramatic failure at 80,000 PSI. Who's idea was this, someone in the government, the same people that took a highly reliable 223 cartridge in the original AR15/M16 platform and insisted that it be loaded with an unproven ball powder that gummed up and fouled up the rifles and cost several soldiers their lives. I think it's a prime example of just because you can do something, it doesn't mean you should.

 

[22BRGUY]

It would seem to me that a 140 gr/.277 cal. would be better served in 6.5 cal from a BC standpoint wouldn't it? Why such an odd new cal. with such a limited bullet choice in that weight?

 

[cfreeman]

Wonder what kind of Barrel life you would get at 80k psi? They’re offering brass in .308 and 6.5 creedmoor like this too.

 

[AckleymanII]

Eons ago, a friend used to work for Remington as a design Engineer. He said the test lab would occasionally take a standard 3006 chambered 700, pound 3 220 grain bullets up the barrel until a regular 220 grain proof load could be chambered. Then they would fire it in a steel tube to contain all the debris. 100 percent of the time the receiver and bolt would be Undamaged. The stock would be splinters and the case would flow like it was melted. They estimated the pressures at “above 120000”

Remington and Winchester bolt heads are tested to 150,000 psi.

This concept came out in the 70's by a company in Charleston, SC I believe by the name of Jackson engineering. They were claiming ungodly velocities out of a 270 Winchester.

I would certainly worry about the rotational torque exerted on the bullet's base at very high pressure loads. Nosler solid base my fare better than most.