A war story with a moral.
A retired Major friend of mine, he enlisted in 1960 and is thus a Maverick, he remembers hearing or seeing soldiers trying to clear a jammed round in a BAR. They were at a military range.
Anyway the soldiers had the bolt latched back, I got the idea it was not fully latched, but I don’t have a BAR to understand the mechanism. Anyway they knocked the case out with a cleaning rod and the case hit the bolt face, apparently it had the firing pin forward, but it hit the bolt face with enough force to ignite the cap.
Major had seen the barrel. Said it was blown like a banana peel and some of the soldiers had to go to the base hospital.
So, if you are going to knock a round out with a cleaning rod, make sure the weapon is disassembled enough that the ejected round hits air.