I regret getting on the 300BLK bandwagon. It sounds better on paper than it really is. About the only advantage I see it having over 7.62x39 now is the ease of use in an AR platform. That's nice & all, but between the lengths I have to go through to make SURE I don't mix mags w/ 5.56, along with the fact any accuracy gain I might have seen is made moot since it's basically a 200-yard gun, I'm no longer feeling the love. I could have bought 2 good AKs for the same price as one top-tier AR. On the upside, it won't be hard to get rid of these days. On the downside, it will be nearly impossible to replace. Anyone else drink the 300AAC kool-aid & get indigestion?