Primer reading question. Maybe it's a Glock question

[Jamnanc]

I have a G32. I have both winchester white box and reloads with ugly primer strikes. The primer appears to have bulged/flowed into the bolt face to leave a rectangular indent. I don't see how this could be a pressure problem since its factory loads and reloads. Is it just the gun? The picture shows the factory loads on the left and the reload on the right. I'm being extra careful because its a glock and a 357 sig. Setback wasn't a problem, I pushed two moist patches through the barrel with CLP after shooting and the barrel looks shiny, so I don't think it's leading. The reloads are 124 flat points over 9 grains of hs-6 which is lower middle in my manual. Any ideas? Or meh... Keep shooting.
Any help appreciated.