Critique my neck turning

[midmoguy]

I made my first attempt at neck turning today using the attachment for my Forster trimmer. I ruined two cases before getting the hang of it. The brass measured between .016-.014 so I trimmed to .014. This was all crap Remington brass that I figured was good for practice.

 

[AZ.noob]

Looks like money to me! I'm only cutting them to .015 so I get a few that aren't 100%, but yours look sharp.

Check for runout... turning puts a lot of torque to those

 

[lightman]

It looks like you need to turn them more. That is, take it closer to the shoulder. Lots of us actually cut into the shoulder, just a little. Other than that, it looks like a good smooth cut. Lightman

 

[Longguns]

What lightman said. I turn just barely into the shoulder. If you stay where you are there will be a ring there where you stopped.

 

[midmoguy]

Thanks for the input guys I was worried I was going too close to the shoulder from the Forster directions but I think I will take your suggestions. I will practice on some more cheap brass before I move onto my lapua stuff.

 

[damoncali]

Yup - you want to just barely nick the shoulder. Otherwise, that neck area that you didn't turn will wind up as a tight spot inside the neck (after you fire them) and jack up the seating/sizing operations.

 

[lightman]

If I ever master the ability to post pics, I'll show a few that I just did. For now, I have to get the wife or kids to help! Lightman

 

[Sugarbug]

What is the purpose of this?

 

[thrusty]

What is the purpose of this?

Helps to achieve uniform neck tension around the circumference of the bullet if the neck has a uniform width.

 

[Sugarbug]

Ah. I see. Thanks for clarifying.

 

[lightman]

It also gives the brass a place to flow. It helps to avoid the dreaded donut! Lightman