Brass length for 6BRA

[Lefty Trigger]

I want to make sure my barrel is set correctly, could somebody give me a measured length of fired brass to see if I'm set. Measuring my fired brass with the Hornady tool number B350 I get 1.190. I setup and fired 15 today to make sure they would form correctly, looks perfect.
Peterson brass.

 

[Mark W]

i have two BRAs. Using that insert, I get 1.1725 on one of them and 1.1720 on the other one. I usually use insert C375 for BR brass because it catches closer to the shoulder. Not sure if that really matters though.

IMO, they are fire forming beautifully and you aren’t swapping brass with another gun, so I wouldn’t give it a second thought.

 

[Bill Norris]

Looking nice Bro.

 

[Lefty Trigger]

I'm using one of my old 6BR accuracy loads. 28.7gr H4895/CCI400 with some random left over Nosler 107gr custom comps seated to about a .006 jam.

 

[varget204]

I'm using one of my old 6BR accuracy loads. 28.7gr H4895/CCI400 with some random left over Nosler 107gr custom comps seated to about a .006 jam.

What Kind of Velocity are you getting ?

 

[Lefty Trigger]

What Kind of Velocity are you getting ?

Did not take radar unit with me so no idea. Weird but I will say it was cratering primers pretty bad and it never did that in the 6BR, maybe because of the jammed bullet?
H4895 use to be one of my favorite powders but the last 2 lots I bought they are like two completely different powders? Now I just use it for forming brass or breaking in barrels.

 

[Lefty Trigger]

I found an old thread on this very subject,... it appears that I may have my barrel set a tiny bit too far out. Going off of the measurements I found it seems like about .015 too long. I only have fireformed 50 pieces and they all turned out perfect so I can either "A" run with it... or "B" reset the barrel and resize shorter (easy done with barrel nut)

 

[Nick Caprinolo]

What kind of accuracy should I expect from the 6BRA at 100 yards after the barrel is broken in?

 

[Mark W]

I found an old thread on this very subject,... it appears that I may have my barrel set a tiny bit too far out. Going off of the measurements I found it seems like about .015 too long. I only have fireformed 50 pieces and they all turned out perfect so I can either "A" run with it... or "B" reset the barrel and resize shorter (easy done with barrel nut)

I would run with it. Better off a little long than too short. You should have plenty of range for your sizing die to do it’s thing.

 

[JFrank]

What kind of accuracy should I expect from the 6BRA at 100 yards after the barrel is broken in?

100 is kinda too close for ladder testing

 

[Nick Caprinolo]

100 is kinda too close for ladder testing

After seeing your target, if that is a consistent degree of accuracy from that rifle, I will take it. It might be improved upon depending on a few things, mostly the quality of the barrel, but 100 yards is all I am able to shoot at right now. That's good enough for me. I am building a new rifle and still have not decided on caliber.
Thanks