Re: Neck Turning In A Lathe
You are right, having a lathe makes me think I should use it, but that is not the main reason for using the lathe. I believe, as I'm sure most do that the bullet should be as concentic as possible to the outside case diameter. I believe that the I.D. of neck should be checked as well as the O.D. for runout. Then and only then could a evaluation be made on what operations need or don't need to be done.
If the case body is concentric to the neck O.D. and you have lets say .002 neck wall thickness variance, in my mind the I.D. of the neck should be bored, not the O.D. of neck. I think by doing this that you would then have a case with zero or near zero runout on new brass.
I could be totally wrong here, but it is something I am experimenting with and trying to learn about. I want my cases perfect and I believe it can be done. It may not be practical but just something I am pursuing. I have not been able to find any article or reloading videos that address any runout isses on the I.D. of neck. I am sure someone on here can set me straight on this subject and it would be greatly appreciated.