I'm looking at the Viper® HST 4-16x44 Riflescope.  I want to use it for longer range hunting and shooting.  I do like that it is not a OA.  I know that's bad in some circles, but for what I want it for I'd rather not have that.  Anyway, can anyone tell me the differences in the MOA vs MRAD reticles?  They look similar when I look at them on the webpage.  Any info would be appreciated.

I'm going to put it on a TIKKA T3X CTR 6.5 CRD 24" barrel.  

Thanks.

Basically, MOA and MRAD are just two different systems of angular measurement. I'd suggest the "Understanding MOA" and Understanding MILS" videos on YouTube from the NSSF. Just choose a system and make it work for you! -RJ