The technical details of scopes are a bit of a mystery to me and some of the information sheets do not help much. Scope adjustment range is an example. Some tactical scopes I have been looking at have a 50 MOA adjustment. Dose this mean + or - 50 MOA or dose it mean + or - 25 MOA? As my .338WM has about 30 MOA drop at 1000yrds when zero at 300 yrds, this may put it outside the range of the scope for these distances? Can anyone enlighten me.