6mm BRA barrel question

[Tree]

I have been debating getting a 6mm BRA made up for my AI AT. What would be a good length and twist rate if I were to get one?

 

[Kadams1563]

1/7 and 28”

Maybe a different twist not sure in that one but barrel length your kinda stuck to 28” to get the velocity.

 

[Flatiron]

I get 2950 with 105 Hybrids out of a 24" Bartlein, 31.8 grains of Varget.

 

[kthomas]

I run 28" and I think it's a good length if you are not suppressing it. It's a Heavy Varmint contour and I don't mind the weight/length at all.

If you plan to run suppressed, I would go 25-26", maybe even 24". A suppressor will add a good ~20-30 fps.