Guys, I'm having a hard time deciding which rifle to save for. My choices so far are HK MR762, SCAR 17S, LMT MWS, LWRC Reper, and LaRue OBR. I don't know much about any of them so I'm looking for suggestions and pros/cons. If I left a contender off the list, I'd like to hear about it too. I want an AR pattern rifle with the ability to shoot out to 700-800 yards. It will mainly be used for fun, but I want a battle hardened design that would also be superb for SHTF/EOTWAWKI. I intend to put a top tier long range optic on top and a QD bipod. I live in Florida, so I am in a lot of heat and humidity. I think I want a piston gun bc I've heard DI 7.62s get REALLY dirty really quick. Thanks for the input and any help you might be able to offer.