They are very good loaders. I think the one I don’t have is that more expensive job that completely loads a whole 223/556 30 round magazine.
I have the 5.56 and 7.62 loaders, and they’ve more than paid their way.
http://i1048.photobucket.com/albums/s362/carriage_hill/DCP_1967_zpsk2dxtjti.jpg