.243 necksizing

[EDCOLLIER]

I need some advice from this august group.
Using a fireformed case from my factory chambered rifle, one that
the bolt closes on without any difficulty, is it neccessary to
make any headspace adjustments when neckiszing only. I have competition shell holders if needed. Please, no guesswork, and
THANKS. Ed

 

[Preacher]

No headspace adjustment need be made on neck sized only brass up until the time they will be hard to chamber, and then they just need the shoulder bumped back until they again chamber with out much if any resistance.