A few things from the John Garand Match at Camp Perry.

[John Kepler]

Just because I didn't shoot in Saturdays rain in the JCG, DOESN'T mean I haven't done it before! I have, numerous times with both my Garand and M14 (including the miserable rain-shortened 1998 NTI....I bought my AR right out of Frank White's hands still dripping water at the end of the match!). Having done so on multiple occasions makes me wonder about those that poo-poo how difficult it actually is...with or without glasses!

A Booney Hat helps, but as Phil pointed out, it's not the rear sight that's the issue per se, it's the tea-cup or so of high-velocity water that gets blasted into your face from the bolt and the op-rod cycling every time you fire a shot! Also, water surface tension and small holes (as in your rear sight aperture!) can make for a rather "opaque" view of your target, and no wide-brimmed hat is going to keep the water out of it after the first shot! Oh....and did I mention that the water being tossed off the rifle into your face HURTS?