Winchester brass being made cheaper????

[jjrothWA]

On Saturday went to local shop for 30-06 brasss, bought a 50 count bag of Winchester.

Was going to reload and pulled some cases from the bag and looked inside, noticed that there is a "donut", surronding the primer pocket that APPEARS to be standing above the rest of the interior case surface.

Checked a bag of .308 brass, bought last fall and it had the same situation.

Located thr remains of 7MM Mag brass [also Winchester) that was bought on 2010, it had the same markings.

To me it looks like a remake of the "balloon-head" case of the blackpowder are that were not suited for modern powders and pressures.

Has anyone notice this or have further information.

Thanks.

[Parashooter]

Could it be misinterpretation of a depression surrounding the flash hole? Reflections can fool the eye when looking down a long case.

A balloon or even semi-balloon head .30/06 case seems unlikely, so a photo of a sectioned example would be highly interesting.

[jjrothWA]

If I do it right I could use the sectioned case to get a bullet diameter to bolt face length. [Hate to waste a case]