It's probably as much to do with the crappy pressure curve / burn rate of Turkish that will turn a G/K into a mini hand grenade. Add to that the powder inconsistency and poor to questionable storage (hot/cold/wet/humid/repeat) and then you've got clumped up crappy inconsistent powder. Some will burn slow, then accelerate and burn explosively, such that the first part kicks your bolt carrier back, and then the explosive second burn peels the bolt carrier off. The G/K is one of the last semi-auto rifles I'd shoot this stuff in and I wouldn't shoot it in any semi-auto.
BTW, if you've ever had a high pressure semi-auto have an OOB it's not a forgettable experience. Always wear shooting glasses, they saved me.