What process for new brass…

[slikmrc]

Would you run the Lee collet neck die as I don't have a mandrel die

Your Hornady die should have a neck expander on the decap rod. You can run the cases over the expander to uniform them.

 

[Paulstarr]

So I have a batch of new adg 6.5prc brass. They recommend sizing it and even though their packaging is good the necks have a few dings in them.
So I have a set of hornaday match grade dies and a Lee collet die. What would you guys recommend?
Thanks for any help

It's always a good idea to ensure that the new brass you buy is the same wall thickness as your existing brass, otherwise the neck tension won't be the same.I use a expander mandril on the new brass and then use your chosen neck bush to resize the new brass to the size you want.

 

[Mike D Texas]

New brass with ADG, Lapua and Peterson. I size the necks and chamfer and deburr the necks

Same. With new brass I mandrel, chamfer, debur, load and shoot. I don't even start load dev until after the first firing.