Hello,
This is my first foray into case reforming. I have the manual of cartridge conversions and it says to start with a Rem 30, cut, size, ream the neck, and resize. I’ve also read how members here use 40 S&W pushed through a 30-30 die and then through the nambu sizing die. I have two questions I would be grateful for advice on:
Did either of these approaches work better for the extractor/give less on the extractor?
If I neck ream the 30 formed cartridge, do I simply need an 8mm reamer pilot for my RCBS trimmer - would that be the right size? Or should I order a custom diameter neck reamer?
Thank you