http://www.businessinsider.com/an-a...-fire-precision-shots-in-poor-weather-2014-12 http://www.hardshoot.com/
I remember an M-14 with too much oil on. In the rain the slider would throw oil and water on my glasses. What a mess, couldn't just wipe the glasses like if there was water on them... Can't think of everything ahead of time can we? Have to survive long enough to learn from experience!