Gunsmithing 6BRA Help

[TerribleProblem]

Hi all.
With the recent purchase of a 6bra barrel for my prs rifle I just have 1 question about forming the brass. It may seem like a stupid question but before fire forming do I run the standard lapua 6br brass through the sizing die?
Thanks and have a good day!

 

[djarecke]

No need to do that. I run a .241 expander through it to iron out any dents in the necks through shipping, run a lubed bore brush through the neck, and jam .020". There's no need to jam with an Ackley, but I do it to ensure I get a good shoulder blow out and have good ignition.

Try 29.5 grains of Varget and 28.5 grains of H4895.

Go win matches and enjoy.

 

[TerribleProblem]

Djarek, sorry should have been more specific I meant do I run the br brass through a bra die set.
Thanks for the info!

 

[anotherwannabe]

the body dimensions are the same except for shoulder angle change. so while you could, it’s entirely unnecessary. expand necks for uniformity and go

 

[TerribleProblem]

You guys are awesome!
Thanks

 

[AccuSol-ERN]

I love me some 6BRA.

Ern