Sounds like the urban legend about the German waiting to hear the "ping" from a Garand before poking his head up. Never been in battle, but if someone was banging away at me with an M1, I doubt if I could concentrate enough to hear the "ping".
Never tried putting a 7.62x63(metrification of the 30-06) into a 8x57 chamber. 6 millimeters shorter is a bunch.
Not sure I have a big enough hammer to close the bolt on that one.
Anybody tried it?
I like "this is what happened when" more than my geezer speculation.