Hank, I assume from your post that you were at Ft. Leonard Wood. That's where I took Basic Training -- the heat and humidity of summer and you don't shoot well with sweat in your eyes and oil thrown back on your glasses by the bolt.
No, I was talking about Ft. Carson, CO and Ft. (then Camp) Ripley, MN -- and yes, it was very cold in both places when I did my shooting. That, of course, was five long years after Basic Training.