My wife is finally on board with me purchasing a Nightforce scope. I am wanting the NXS5.5-22-50 with the MOAR reticle. I will be mounting it on a 7mmRUM Sendero SFII. I am having trouble trying to decide between a 50mm objective, and a 56mm objective. Also trying to decide which reticle would be ideal for me. I will be using it to shoot at 1000yds targets, so that one day I can get into the long range hunting which I am so interested in right now. Another question I have is: I will put a 20 MOA base rail on, and want to know what height of rings I should order. Medium for the 50mm objective, and tall for the 56mm objective? Thanks for your comments.