http://www.thehighroad.org/archive/index.php/t-160015.html
Consensus is bullett drops like a rock after 200 yards, think what you will. Google it. It's a heavy round made to do damage at 100-200 max yards. The AR will go out past 800.That is from our own site, if youcheck with manufacturers, you would need a very good rifle in AK to get accuracy past 200 yards.
Sam tv's are pretty common these days, I can send you a list of shows like "prepers" , of people all over the country , not goof balls, professional people, who are peparing for an event of some type, weather it be a rogue nuke, virus, shutting down of the power grid, "which is being tried by hackers on a daily basis, or natural disaster. We almost had a shutdown of the govt which would have meant loss of power as the east coast is now on emergency power since the earthquake, "if you had a tv". Thus the difference between an accurate rifle at 200 vs 800 yards ould make a difference if you were defending your food supply and family and home, against people who had not prepared and wanted your food ammo etc.That's why there are so many people purchasing readiness equiptment as most here know.We have several ex miitary here where I live 350 homes and have spoken openlly about this, if you haven't perhaps you should. Ak is really a cheap rifle unless you spend a thousand dollars for a milled rceiver and quality parts, you would likelly do better with a 30-06, as an all around weapon, with 10 rounders.It wold cost less and do more. By the way we don't use radio towers anymore, cell towers, internet through fiber optic cable, or satellite transmission.
You seem to have a handle on things so good luck to you. I am going to go light the campfire so I can make dinner. If you are interested in the ballistic coefficients of various rounds you can google them,