6 BRA neck & leade

[High Noon]

I’m ordering a new 6 BRA finish reamer and was wondering what you guys are currently running on neck and leade. A current print would be very helpful if someone could share.

Thanks!
High Noon

 

[johara1]

.268 nk.

 

[Mark W]

I have a .268 and a .273.

 

[High Noon]

Question....a .270 would give around .002 clearance on unturned brass and still would allow a slight true up cut for around.003 clearance...does that sound reasonable?


I see leade at .104 up ?

thanks,
High Noon

 

[High Noon]

Berger 105 & 109 ....

 

[BoydAllen]

On the original print that was published, the freebore diameter is .244. That would have a very slight effect that how long a bullet would be seated at touch, compared to more typical FB dia. Back when the print was first published, I asked Alex why he chose the slightly larger diameter. He told me that it was based on testing.

 

[Chuckhunter]

Sent you the correct print in a PM, you'll notice my neck dia. is the same for the Dasher & Bra, that way I never change my nk turner.

 

[Alex Wheeler]

I was just recently having this conversation. I have at least 12 different BRA reamers. If I include this years pending records, Im up to 16 records on my BRA#1 reamer in the 4 years I have had it. It was the first BRA reamer I spec'd and is still been the one to beat for me, I have a couple others that hold a record and some national wins but none have had the success of the original. Still looking to improve on it, but you wont be held back by it. Some things to note, no part of that reamer was overlooked. Dont shorten the chamber length or tighten the freebore. You can go longer on the freebore but I shortened it on purpose as H4895 likes neck tension. JGS stocks the reamer.

 

[High Noon]

Alex,

What neck size and lead would you recommend today? Could you post your favorite print?

Thanks!
High Noon

 

[Alex Wheeler]

The BRA#1 is a .268 neck with a .104 freebore. Id have to look it up but it is available to the public from JGS. No I do not get a penny from their sales. If you want a no turn just ask for it with a .272 or .273 neck. If you want a varmint version ask for a zero freebore.

 

[High Noon]

Thanks Alex for your help here and your work on the 6 BRA!

High Noon

 

[High Noon]

....Alex, just one more question, what neck clearance are most running .002 or .003...

Thanks,
High Noon

 

[Alex Wheeler]

I recommend .003.

 

[tclaunch]

I’m ordering a new 6 BRA finish reamer and was wondering what you guys are currently running on neck and leade. A current print would be very helpful if someone could share.

Thanks!
High Noon

My 6BR-Ackley has a .272" no turn diameter and zero freebore. That makes it flexible. I have a separate throater with .2438" diameter. I use .080" for Barts 103 Hammers. This has led to the 2019, and 2020 600 yard IBS rookie shooter of the year wins. Gabe Matheny, 2019, Nick Mansfield 2020.

 

[High Noon]

Interesting and thanks for sharing!

High Noon

 

[dnellans]

Question....a .270 would give around .002 clearance on unturned brass and still would allow a slight true up cut for around.003 clearance...does that sound reasonable?

Didn’t see this answered explicitly above, but 270 is not appropriate for no turn. I do what I believe is minimal turn and use a 270 neck. Most, but not all, unturned brass will chamber in it and some will chamber but requires force. I wouldn’t feel safe shooting unturned brass in it.

Go 272 if you want no turn.

 

[waverly]

Attached is my reamer print. I went with .272 neck.

Waverly

 

[Fire Dog]

Attached is my reamer print. I went with .272 neck.

Waverly

I got the same reamer a few years back and it is great, had Widden make me custom "Neck Size Only" bushing die to complete the set; started out with their full length die... Don't forget to get the "GO" & "NO GO" gauges as well.

 

[dgeesaman]

Question....a .270 would give around .002 clearance on unturned brass and still would allow a slight true up cut for around.003 clearance...does that sound reasonable?


I see leade at .104 up ?

thanks,
High Noon

.271 will just barely clear on unturned brass that I've tried. But I skim turn 80% clean anyway. If I did it again I'd go .272.

David