Gongrats and that young buck will be good eating. I'm not surprised about them losing their antlers already. I found a 4 pt shed between Christmas and New Years here in PA.
A little surprised about the statement you made seeing a flicker of white and looking thru the scope. Pretty dangerous my friend. It could have been some bonehead with a white handerchief (or me taking a dump in the woods). And I sure know I wouldn't want a 50 cal suppository. You're much safer using binos to verify.