im startingmy first improved build and have some questions based on my understanding. I'm wanting to do a 300 Norma improved prob 35deg. My understanding is when u improve a case it should shorten in oal. I really don't want to shorten the neck at all. I'm worried that if I get a reamer for the improvedmeant to fireform that once formed my necks are going to be way short? I'm thinking I'd rather do a hydro die(whidden)and improve them and have a slightly shorter chamber reamer made? Also with the whidden they say you have to hit it with you resizer die after and I'm not planning on having that made till there fully fire firmed. I'm presuming it's better to have your dies made from fire formed brass vs a reamer print undersized? Thinking any variation/misalignment in chamber is doubled in actual chamber dimension. Any advise appreciated, thanks. Want to do it right the fist time and I'll be calling kiff and whidden next week