So I took this out for the first time today on my Remington 700P 300 win mag and it worked great at first for when I was zeroing the rifle. Then, I walked out and placed two targets at 600 yards and one at 1000 yards only to find out that my elevation knob stopped clicking and popped off. Most of my shooting has been done with iron sights and this is my first scoped weapon. Did I ruin the scope? Or is this something I can fix on my own?