Re: Donut formation question
Mix some flour, yeast and water.
If you did it right ..... You will have to go to the donut store.
I don't think there is a hard rule here.
I have a lot of Lapua that has some cases with donut. TBH I think I got the turning a little short.
So far, I've not seen a donut develop on those cases I 'got right' so I can't say.
I don't shoot hot but as I understand it, hot loads will 'flow' brass back up into the neck. Then you ream. I got the reamer for the Lapua brass but have not processed that lot since it arrived.
Fred Seaman - NRA Life Member
“Ask, Listen, Learn, Grow”
"Quit worrying about the little things, good luck and god speed"