It seems unlikely to me with the reduced pressure and heat of the .22 cartridges. i think i'd be more concerned about the free jump to the lands affecting accuracy, and the fouling buildup making it hard to chamber the .22lr's.
But im curious to know if anyone knows or has heard of the throat actually eroding due to use of shorts.
But im curious to know if anyone knows or has heard of the throat actually eroding due to use of shorts.