RE: Forming new brass question.
I used to neck turn, but won't anymore. I use a sinclair Intl neck turning kit. If you do neck turn, you really should anneal after, and you also need a neck thicknessgauge. I only take the neck down to .014" neck thickness min. Any more than that, you might not be able to hold a bullet.
Also recommend getting a FL sizer for your purpose of new brass.
I have tried all kinds of techniques for fire forming but its a pain in the butt. From cotton stuff in with bullseye powder to filling the case with all kinds of other stuff. I won't do it anymore. I will just shoot.