New 6 Dasher questions

[40X Guy]

I know this has been beaten to death and after reading thru various past threads last nite for 2 hours the only thing i came up with was a headache. ;D But my question revolves around fireforming for my new Dave Bruno built 6 dasher that I picked up yesterday. It is a tight neck .268 chamber and I realize I have to turn the necks. I was seriously contemplating turning the neck on one case down to the shoulder junction, expand the neck to .257 and then size neck down in increments to where it chambers. Then after jamming bullet and fireforming this round can I use this round to then re set the neck turner for the proper length of cut on the rest of the cases and use this as the false shoulder?

I also looked hard at the COW method posted by forum member Skeeter using Titewad powder and then neck turn. I guess I am thinking out loud and looking for the best method. Any and all suggestions/comments are welcomed.

Frank

 

[Erik Cortina]

Here you go, look at method #3

http://www.6mmbr.com/6improvedform.html

 

[Phil]

If you have access to the reamer print, that was used to build your rifle, you could just look at the neck length on the print and turn to that point.....

 

[40X Guy]

Erik, thanks for the link, I did find that one late last nite and after reading again just now this may be the way to go. And Phil thanks for the suggestion about the reamer print, I will call Bruno monday for a spec. I can't see doing the COW method as i don't believe they will bbe as fully formed as actually shooting a bullet.

Frank

 

[40X Guy]

Update on my new 6 Dasher, I decided to use the COW method and it is working very well so far today, I have fired 10 and they are coming out nicely formed and blow length is anywhere from 1.546 to 1.552. Next step will be to turn necks to .0115 neck thickness and go out and work up a load.

Frank