The only thing I’m missing is if one is so obsessed with worry about the knock down of 38sp vs 357mg, why not just get a 357? Most of the revolvers I encountered with bulged barrels and blown cylinders happen to be 357s. Barrel bulge from squibs and blown cylinders from double charge and Bullseye. Over half those guns were S&W m19s. 38sp tended to be squibs more than blow ups.
The one thing most had in common was owner admitting fault.