I picked up some assorted range brass this morning and was running them through my decapper/sizer when on of them "felt funny". I inspected the inside and found what looked like an additional thickness completely around the inside extending for about 3/16" of an inch above the flash hole. I looked at the stamping on the case and it was stamped "extreme 38 special". I picked up three of these and they all had the same feel in the press and all had that slight extra thickness on the inside of the case.
Does anyone have any ideas about what these are?
best and in Freedom
atr