Hi, Im new to this forum but am hoping that someone can help me out. I have a remington .223 action that has been trued and fitted with a shilan match grade barrel with a 1:8 twist, the action is currently bedded into a Mcmillan A5 stock the trigger has also been modified. I am currently looking for a scope for this gun I am looking for something along the lines of a Nightforce 5.5-22x50 or 56mm not sure what the pro's or cons of either are, I would like to shoot this rifle out to around the 1000 yard mark so I will need bases and rings with 20moa or more elevation. What are the benefits of a 50mm or 56mm objective and what height bases will I need for these scopes? what are the pros and cons of having the recticle in the first or second focal plane?