6mm BR vs 6mm ARC

[pavementends]

Has anyone compared the case capacity of the 6mm BR to the 6mm Arc? My google foo is failing me and I do not have both cases handy.
Thank you

 

[Clancy]

If nobody has the answer, I have a piece of ARC brass somebody left in my truck and plenty of BR. I’ll shoot them full of alcohol when my wife leaves the house. Currently confined to a bedroom with my 3rd round of Covid

 

[pavementends]

Thank you, Sorry about the Covid.

 

[alf]

Depending on who you believe.....

6BR - 38
6 ARC - 34
6.5 Grendel - 35
6.8 SPC - 36
6 Hagar - 37.5-38

 

[pavementends]

Depending on who you believe.....

6BR - 38
6 ARC - 34
6.5 Grendel - 35
6.8 SPC - 36
6 Hagar - 37.5-38

Thank you Alf, just what I needed

 

[Clancy]

Thank you Alf, just what I needed

I got 3.4 grains difference between a fired ARC and a FLS BR, so I’d be that Alf’s numbers are awfully close, especially considering my large sample size of one case each.