I cleaned and washed several hundred 223 cases. I took the concave expanded screen from the fire pot, turned it over, poured the wet cases in, and fired up the optional burner on the side of the grill. Then I took my sweet time heating those cases to get the water out fast. Annealing the whole case is a real bad idea. I did not think about those brass primer pockets being softened.
While individually hand priming 50 cases there was no direct evidence of poor primer tension. The cases looked discolored in red, orange, yellow, and white. Loaded mid-level with Win 748, a 55 grain pill, and shot from a bull barrel Handi-rifle, the primers (PLURAL) exited the back of the case, slammed into the bolt face, and OPENED the ACTION. FOUR TIMES I SHOT THAT LOAD before my brain functioned and said enough is enough.
I had shot that same load in that same rifle MANY TIMES before and since, the action never jarred opened. The Primer pockets (and whole cases) on that day were far too soft. I unloaded, deprimed, and crushed them all.