seems to me if you have a tight fit, and its locked up dry...
how can water affect accuracy ??
this is a pressure fit.
i've bagged whitetail @ 100-150 yrds from a tree stand in a monsoon.. many times
and poa was poi...... usually december carries around 10-15 rain days
around here.. and of course its always around the weekend.
now i can see a problem of water getting in there when the breech is open..