6mm BRA to 6mBRX

[eas1949]

Can Lapua 6BRA cases be fire formed into 6BRX? I have a bunch of BRA brass but recently pcked up a 6BRX barreled action.

Thanks
Eric

 

[shoot4fun]

There are two versions of the 6BRX, Crone and Whitley. They are different enough that you will need to know which chamber you have.
I am not 100% knowledgable on the 6BRX but I do own barrels with two different versions of 6BRA. The "A" is for Ackley and all the Ackley Improved cartridges I know of gain performance by taking the taper out of the case body. I would think it highly unlikely that a 6BRA case would chamber in your 6BRX barrel.

 

[gme]

fireforming works best with virgin cases

 

[Stan Taylor]

Can Lapua 6BRA cases be fire formed into 6BRX? I have a bunch of BRA brass but recently pcked up a 6BRX barreled action.

Thanks
Eric

If that BRA brass has been fired more than twice I would strongly suggest against it.

 

[shoot4fun]

If that BRA brass has been fired more than twice I would strongly suggest against it.

I've seen and heard of brass being fire formed, say from 6BR to 6Dasher, after a few firings, I agree that it isn't the best option. I still think the one aspect that will keep the OP from going 6BRA to 6BRX is the BRA's altered case body taper.
Right or wrong?

 

[Stan Taylor]

I've seen and heard of brass being fire formed, say from 6BR to 6Dasher, after a few firings, I agree that it isn't the best option. I still think the one aspect that will keep the OP from going 6BRA to 6BRX is the BRA's altered case body taper.
Right or wrong?

I decided to go cheap a couple years back an do basically what the op is wanting to achieve wish I still had the pictures of my face after I got a face full of gas an brass fragments I fireform ok. But after 2nd fireing had case seperation .

 

[tmwinds]

There are two versions of the 6BRX, Crone and Whitley. They are different enough that you will need to know which chamber you have.
I am not 100% knowledgable on the 6BRX but I do own barrels with two different versions of 6BRA. The "A" is for Ackley and all the Ackley Improved cartridges I know of gain performance by taking the taper out of the case body. I would think it highly unlikely that a 6BRA case would chamber in your 6BRX barrel.

I have both a 6BRX Crones version and a 6BRA. I just tried chambering a 6BRA in the 6BRX Crones rifle. It chambered with no resistance and the bolt fell closed. The 6BRA would need a false shoulder to hold the case head against the bolt face for fire forming to BRX. Would I try it? Absolutely not, I would use new 6BR brass and fire form using the false shoulder method, better yet have DJ's Brass hydro form the brass.