Headspace question.

[jmoore]

Ummm, GBinSC stated as did Brian Dick that his headspace is fine. Sooo, how much RADIAL EXPANSION is tolerable given worst "case" scenario using non-embrittled (relatively new, let's say) virgin brass cases or non-reloaded ammo?

I'm thinking that the degree of thinning could, possibly, be less, but I'm open to some computer modeling or actual hard data.

Oiling the case won't affect radial expansion, so leave that bit out!