Sounds like these guys were using bad ammunition, or chamber issue. Has there been a manufacturer that hasn’t put out a firearm with an oos chamber? Hell I bought a new browning a bolt 22-250 years ago that wouldn’t even chamber a round. Shit happens. The PSA 103 is a hell of a rifle.
I’ve got a 103 that has seen around 800rds now (90 being Barnaul SP) with zero malfunctions.