There is a pic of the 400 GNR in a thread below.
The case is necked in the sample cartridge. I fireform my brass and it gets blown out straight. Running it through the FL sizer die does not neck the case at all (straight wall). Am I missing something looking at that pic? Is it a 400 GNR or something else?
![[image]](images/uploaded/201808011758075b61f4af27d68.jpg)