Had 28 rounds left on the table when my friends younger brother decided he was ready to go. I figured this would be the fastest way to get rid of them. Its far from perfect form or anything, and my rate of fire isnt the most consistent (it gets hard after 15 or so rounds to keep pulling the trigger fast and steady), but Im no pro... All in good fun. Really wanted to play with the slow motion feature on my Iphone 5S so I had my friend record me dumping the rest of the mag.
Probably around 8 yards and they were all in center mass except for maybe 2-3 flyers.
AK-47 Magazine Dump - YouTube