FL Size and Lapua Brass

[Brux]

I use lapua brass in my 308. I have a honed out Forster FL die that I size my case's with. When I open a new box of brass the first thing I do is chamfer the inside and outside of the case's then do the other case prep work. I have had to send this die back 3 times to get the neck portion of the die cleaned out because the die starts putting all those scratches around the outside portion of my necks.
My routine is shoot,tumble,anneal,resize,tumble again then trim and chamfer again.
Why do I still get these scratches on the outside of my necks?
After they send it back it does fine for about 20 or 30 cases. My cases are spotless when I run them up in that die.
I load for a lot of different calibers with different dies and cases and never have this problem with them, just Lapua.
How can this be fixed?

 

[bax]

I use lapua brass in my 308. I have a honed out Forster FL die that I size my case's with. When I open a new box of brass the first thing I do is chamfer the inside and outside of the case's then do the other case prep work. I have had to send this die back 3 times to get the neck portion of the die cleaned out because the die starts putting all those scratches around the outside portion of my necks.
My routine is shoot,tumble,anneal,resize,tumble again then trim and chamfer again.
Why do I still get these scratches on the outside of my necks?
After they send it back it does fine for about 20 or 30 cases. My cases are spotless when I run them up in that die.
I load for a lot of different calibers with different dies and cases and never have this problem with them, just Lapua.
How can this be fixed?

Do you have a photo of these scratches? Maybe that will help us to understand what you are talking about. I full-length size every case, I shoot a mix of Lapua and Lake City LR and I don't see scratches that trouble me.

You said "honed out Forster FL die". Who did the honing? Could these scratches come from that?

 

[Brux]

I will try to get a pic of it. They are just fine light scratches all the way around the neck. Forster honed out the die and polished it.

 

[918v]

Do u lube the neck with Imperial prior to sizing?

 

[Brux]

I use Forsters lube on inside and outside of neck.

 

[918v]

Have you tried Imperial?

I think you are seeing galling. I have the same dies as you and they don’t scratch my necks.

 

[Brux]

You may be correct. I quit using Imperial when I started using Forster lube but I still have some so I can give it a try.