I want to try my hand at longer distance shooting and I need scope advice. I want to try and stay under $800 on the optics not counting rings. Any suggestions on a good starter optic? Rifle is .308 and the most I would be doing at first would be 500 yds. I will be learning on my own. No local training available. Might be some advice from RSO. What would be easier for a novice to get the hang of MRAD or MOA adjustments? Thanks for any helpful advice and any recommendations on good instructional reading material on the subject.