Bulged shells on brass face after firing??, Page 2

Array of rings on brass after first firing and resizing? What's going on? : r/longrange

Shrapnel shell - Wikipedia

FAQ - 10 (Case Bulge)

I have alot of mixed brass that has these rings around the bottom of the cases. They dont look like the notorious glock bulge smile. They pass the case gauge. Should I

What is causing my cases to bulge out when seating bullets? Not

10 Things to Avoid Doing at a Shooting Range

Case Head Separation????

Gun problem or ammo problem? - Saiga .410

Remington Model 11 12 Ga bulge on brass

Unusual case bulge with certain headstamps - 9mm/38 Caliber - Brian Enos's Forums Maku mozo!

Bulge on brass after firing : r/ar15

Remington Model 11 12 Ga bulge on brass

Look what I found at the range! .308 with clear rifling marks on the case neck. Wild, I'm at a loss as to what happen other then whom ever fired this round