“Burnt” primers?

[divingin]

water goes - UP - when it evaps
perhaps turn your cases over and let the standing puddles evap upward out of the case mouth taking the path of least resistance ?
trying to evap through the flashole is more difficult to go UPWARD through
even more difficult if the spent primer is still in there trapping a cloud of vapor

Missing my point. Water vapor goes up; pooled water remains affected by gravity. By turning cases base-up, you eliminate most of the pooled water (which can be significant with bottleneck cases laying on their sides, regardless of primer in or out.) That leaves just the surface moisture to evaporate, rather than having to evaporate the pool.

 

[markm87]

I grab a handful of rifle brass and shake out the water as much as possible before laying the brass on its side to dry.

I used to dry with annealing, but I don't anneal anymore. It was a cute fad, but I'm over it.

 

[Webster]

Hell of an eye!

It looks like the paper foil disc is still intact?

 

[LCazador]

I think the primer was not seated completely and the force of the firing pin ejected the anvil. Primers need to be seated with full contact to the bottom of the primer pocket. Sounds like your brass is in need of some pocket uniforming. The corners of the pocket bottom should be straight and square to the sides of the pocket.

 

[ELR LVR]

I g

Missing my point. Water vapor goes up; pooled water remains affected by gravity. By turning cases base-up, you eliminate most of the pooled water (which can be significant with bottleneck cases laying on their sides, regardless of primer in or out.) That leaves just the surface moisture to evaporate, rather than having to evaporate the pool.

I guess it depends on how you may be evaporating the moisture
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I set them base down on top of my wood stove
that way the vapor can naturally rise up out of the case
takes about 30 mins, the stove don't get hot enough to affect the brass
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Similar to how when I clean my brass bucket containers
if i turn them upside down the inside never dries out
if I flip them over so the top is open, they dry out quickly
the brass does the same
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If you just left them out in the environment to dry then yeah, I suppose its a different story and they would hold moisture for days