6 BRA brass question

[RICK SMITH]

I have once fired 6BRA brass I'm wanting to turn the necks. I see that Whidden is about the only one that sells a non bushing full-length sizing die. How can I size the necks so that I can turn them without using the Whidden die. Any advice is much appreciated. I do have a short action customs 6br a modular sizing die, but it does not size the entire neck

 

[Clancy]

I am merely tagging in here since I don’t know either, but I have a feeling a Forster 6 dasher FL die might work.

Lets see what the experts say. I want to know this also.

edit: a “trimmed” dasher die.

 

[MikeMcCasland]

Not suggesting you do it, but I've turned brass that has been fired/sized like 6-7 times using only a bushing die. If I remember correctly I was taking it down to .012 from ~.014ish. You'll cut out the unsized portion, but it actually shot accurately, and the neck didn't rip off.

Not saying it's a best practice, but when I did it with a 6GT it worked fine for me.

 

[Rodney]

Couldn’t you just use your expander mandrel after you have sized your brass. I’m assuming your concern is the small portion of neck that doesn’t get sized with a bushing die? I don’t think it will matter but you can check after you expand the necks to see if there is a noticeable step at the shoulder junction.

 

[RICK SMITH]

I just didn't want to cut the unsized portion to thin. With the SAC modular die there is about 30 to 40 thou of neck that ain't sized.

 

[Toms]

I just didn't want to cut the unsized portion to thin. With the SAC modular die there is about 30 to 40 thou of neck that ain't sized.

I have a Niel Jones bushing neck die that adjusts down to the shoulder. I have used it and then turned necks. It worked great. Problem is they don't give them away ether.

 

[Ccrider]

Think outside the box. Put two bushings in the die.

 

[RustyInBend]

I guess my question is ... How do you know you need to neck-turn? Did you test on a Concentricity Gauge and get bad readings? Or did you measure with Ball Calipers? Or what?

 

[RICK SMITH]

I neck turn to make sure the entire neck is cleaned up. I like to have all cases uniform.