I agree with you. Just looked it up OK City bomb was 7,000 lbs. ammonium nitrate with propellant mixed in and more of other crap that was the primer. So just sticking with the 7,000 lbs, ignoring the rest that is 3.5 tons, versus the alleged 2,700 tons that blew up here. Comparing pic' of OKC Federal Building vs. the Beirut blast, it does approximately look like 771x the explosion. More factors involved of course but roughly seems to jive, if we are to believe the 2,700 tons story.