I am currently in the process of a 338 Edge build, It is a blueprinted Remington 700 Long Action with longer mag box and BDL floorplate, Manners T4, I believe a Mike Rock 1-10 barrel. I would like you guys input on what scope and mounting system I should go with and barrel length. I will be shooting 300gr SMKs and it is going to be a long range tactical/ long range hunting rifle. I am wanting to push the rifle to its longest effective distance, thanks in advance.