Magnum_Man
Most of my experience with Leupold has been with military issue gear. I've only owned 3 leupolds personnally. The M3A is a 30mm tube 1 MOA elevation 1/2 MOA windage fixed 10X that was built like a tank.
We pretty much quit using them in late 03 when we got the M3LR 3.5-10X scopes in to replace them. I used the M3A in sniper school, but when I deployed to Afghanistan I had an M3LR mounted up.
I've seen multiple BDC knobs for them M852, 118 Special Ball and A191 and they didn't match our ammo/gun combo either. We were taught (at that time) to dial the range +- clicks to get centered hits. An 800 meter target might be 8 + 1 for example.
Today we use Mils or MOA for data depending on the scope. The Army finally figured out having the reticle and the knobs match made sense and the newest scopes are Mil/Mil.
