|Ok, maybe I'm the only one but I have had a couple of case head separations........I believe due to number reloads, but here is the question:|
What should I do, if anything, about the ring in the chamber where the separation occurred? Probably brass deposits from the hot gases burning the brass?
I really didn't think it best to try to scrub it out......don't want to scratch up the chamber. Any ideas?
Generally speaking, casehead seperations are due to (1) chamber headspace, (2) excessive FL resizing or (3) a combination of both. Seperations generally occure at the forward portion of the web, but on ocassion along the body or shoulder. From your discription I assume its at the forward portion of the web.
If you suspect any brass buildup in the chamber, it can be removed with most bore cleaners,just takes a bit longer than copper, but I seriously doubt thats your problem.
I guess the first questions to ask, what is your die setup...how much shoulder bump are your using? Standard dies are quite capable of creating excessive cartridge headspace if improperly adjusted.
What is the length (casehead to shoulder) of your fired brass compared to the resized cases? Anything greater than around .006" would be approching excessive cartridge headspace and needlessly over working the brass.
A set of GO - NO GO gages will confirm the boltface to shoulder headspace of the chamber. There are some simple methods of measuring case length. A chamber cast would confirm chamber diameter at the web area.
I suspect more than anything, your over sizing the brass.