Case growth from turning ?

[janderson0]

I working on my first 6br, new Lapua brass, and I'm turning with a K&M for a 262 neck. Cases are 1.555 to 1.556 new. I turned them down to .009 in three passes, and now the cases are about 1.568. Was I too aggressive? or is this normal?

Jim

 

[Dean]

I just bought a box of 100 pcs.I have only had time to turn 50 so far.I checked the turned and unturned cases and there was no difference in lenght,but don't go by me...I'm a noobie at this BR stuff.

Dean

 

[BoydAllen]

Your cutter is dull. I have seen this, and so has a friend.

 

[janderson0]

The cases are not sized but I did use a K&M Case Neck Expander to open them up to fit the neck turner.,which is brand new) if it is not sharp it would be a new defect.

I'm going to run a few through the neck expander only and measure.

Thanks,
Jim