Looking for chamber pressure for 6.5 max

[GregH118]

If someone with quick load could help me out I would appreciate it.
I have a 6.5 max tikka action 26" bartlien 1-8 twist new adg brass forming to chamber looking for a load close to 50,000 psi, cci 250 primer, Vihtavuori n165 powder.

 

[Mike D Texas]

I will look when I get a chance but I don't think any of the Sherman cases are in the QL database.

 

[GregH118]

I guess a 6.5 saum will be close enough

 

[adam32+P]

Why 50,000? That's quite low...

 

[Mike D Texas]

Why 50,000? That's quite low...

Yep. I thought so as well.

 

[GregH118]

I watched a video from Keith winning in the wind and he said he has had great results by forming brass at around 50,000 psi

 

[GregH118]

I forgot to add I'm using hornady 140 eldm bullets

 

[GregH118]

help me out am I thinking wrong?

 

[Mike D Texas]

IME you will want to fire-form at full pressure to get the brass formed to your chamber.

 

[codyadams]

When I form I typically start low and work up until I see the shoulder fully forming. From my experience, full pressure or just shy of pressure signs while forming brass to an improved chamber has a higher likelihood of causing problems. Mainly cracked necks/shoulders. Not a ton, maybe a couple out of 100, but it still seems to happen. I like to use the lowest pressure that still fully forms the brass to my chamber. What pressure that is.....I have no idea. I know it's below max though. Which is also good for making brass and barrels last longer.