30BR neck for one turn

[-Markus-]

I am considering a 30BR barrel with a .330 neck.


Is this "the best" choice? Would it be possible to turn that neck with only one pass?

 

[Dan H]

I am considering a 30BR barrel with a .330 neck.


Is this "the best" choice? Would it be possible to turn that neck with only one pass?

That's what I use, (.330 neck) probably because my smith Dwight Scott has that reamer, works for me. I turn my brass to .0098 in one pass using my Pumpkin neck turning tool. I chuck up my brass in a varable speed drill. That being said, I will probably take it down in two passes in the future. My hands are getting weaker as I get older and you really have to hang on to the turner when doing it in one pass.

Dan Honert

 

[abintx]

Markus ...

I am considering a 30BR barrel with a .330 neck. Is this "the best" choice? Would it be possible to turn that neck with only one pass?

The .330" neck is the most popular in a 30BR. Here's more info on it: http://www.6mmbr.com/30BR.html. I turn Lapua brass easily with one pass for my 30BR. I turn the brass so that the outside diameter with a bullet seated measures .3280" at the pressure ring.

I once spoke with Ken Markle, the former owner of K&M Services and the K&M neck turning tool who told me that he did an experiment where he turned 15/1000ths in one pass, without a problem.

 

[Pete Wass]

Necks

There was a post on here in the past few days about this subject. The author said he had asked Ferris Pennell and Mr pennell said the reason for current neck sizes goes back to when one had to make them that thin to make them clean up.

I think .330 is too thin for .30's My next .30 cal reamer will either be No-turn or Minimun turn. I plan to go either .335 or .336 with mine. Most current reamers are .330.