6BR Norma Headspace Gauges

[burlflet]

Hey guys, Are 6BR Remington and 6BR Norma headspace gauges interchangeable?

Thanks

 

[Texas10]

There are some slight differences, depends upon your application. What's your intention?

Some light reading in case this helps.https://www.accurateshooter.com/cartridge-guides/6mmbr/

 

[burlflet]

I have a Savage Short Action and I want to order a prefit barrel. I will need go/no go gauges to headspace the barrel on the action.

Thanks Texas10

 

[dstoenner]

I have a Savage Short Action and I want to order a prefit barrel. I will need go/no go gauges to headspace the barrel on the action.

Thanks Texas10

You really only need a GO gauge. Use the GO gauge to set the barrel where you can close the bolt but if you put a piece of scotch tape (about .002 thick) on the back of the GO gauge the bolt closes but with some pressure. With 2 pieces of scotch tape it won't close (that is your NOGO gauge for free, relatively)

David

 

[burlflet]

David, I understand that. The question remains, is the headspace the same for the Remington and Norma 6BR?
Thanks
Burl

 

[divingin]

They are (the same, that is.) There were minor differences in case diameter just above the extraction groove, but that was more in practice than by design. The specs on the cases (as far as I know) are actually identical.

 

[burlflet]

The reason I ask is that I rent go gauges and the 6BR Rem gauges are available to rent.
Thanks
Burl

 

[Lone Hunter]

Burl, I would ask whoever I rented the gauge from what it was speced out for and whoever the barrel maker is . They should be able to tell you which one to get. Here is a link that deals with this question. I believe everyone uses Norma instead of Remington as the SAAMI now. The Remington would be from older weapons not a Savage or Remage.

http://forum.accurateshooter.com/threads/difference-between-6mmbr-norma-and-6mmbr-remington.3948333/

 

[burlflet]

Thanks

 

[gunsandgunsmithing]

David, I understand that. The question remains, is the headspace the same for the Remington and Norma 6BR?
Thanks
Burl

Yes, the head space is the same!

 

[burlflet]

Thank You!!

 

[Webster]

I have a Savage Short Action and I want to order a prefit barrel. I will need go/no go gauges to headspace the barrel on the action.

Thanks Texas10

What is the caliber stamped on the side of a prefit barrel. 6mmBR REM caliber is obsolete. When people talk 6mmBR they are talking about 6mmBR Norma. The head stamp on my Lapua brass is 6mmBR Norma. Make sure you don't get a Rem version reamer. I'm sure this will start a pissing match about the difference in the two. Not sure but I think Rem still sells the 6mm BR Rem in the model 40X rifle. Buy the Lapua brass even if it's expensive. I have about 9 reloads on my brass and I expect many more reloads. I bought my 6BRmm Norma barrel from Kelby's. They sold me Redding 6BR Rem FL dies. They work with either version of 6BR. I also bought Redding FL bushing dies, they are labled 6mmBR Rem. I have reloaded about 5000 cases with these dies.

 

[Texas10]

I ordered a head space gage at the same time as my new Shilen 6BR barrel, and glad I did as I ended up switching the barrel onto another action after initial break in. Of course, I could have used a fire formed case to set the new barrel in the new action, but in the end I got it to within .001" and that's good enough.