Interesting. I conducted similar tests with Wolf ammo through my Rommie and published the water jug tests here:
http://www.thefiringline.com/forums/...d.php?t=214685
As for accuracy, Minute-O-Gallon jug with the PK-AS-V is about average at 200 yards and with a little practice, I think I could keep all or most of them COM at 300 yards. Like you, I am a big fan of the Kalashnikovs. Mine is only a ban-era WASR I bought for $279 just befor the AWB expired "just in case," but it has been utterly reliable and surprisingly accurate--even when going long periods--several thousand rounds, without cleaning.