Competition 50BMG barrel advice

[Nitroexpress]

With help from a local gunsmith I'm having built a long range (competition) .50BMG for 1000 to 2000 yards shooting.

It's a little bit out of the ordinary for my neck of the wood and I could really do with other .50BMG shooters to recommend best barrel length, twist etc to go with.

One of the competitions rifle



750gr Lapua or 750gr A-Max would be the bullets easily available to me here.

Any good advice will be welcomed.



Nitroexpress.

 

[NomadPilot]

Did you rebarrel an AW50?

 

[Nitroexpress]

Did you rebarrel an AW50?

No - that rifle is another guys who shoots FCSA UK.

I am building off a Barnard action / Mc Millan Big Mac stock but need some info regarding barrel spec - was thinking about a 36" 1 in 12 twist???