I've gotten 2 91/30 Mosin-Nagants from them.
One I completely refinished, shortened the barrel by 2", retapered and recrowned it, mounted a scope and bipod to it, and fit it into a new stock.
The other one was a project to see if I could build it into a short folding carbine. I reshaped a folding stock from an SKS, fashioned a new front and rear sight, shortened the barrel to about 16.5", and I'm in the process of making a muzzle brake for it. I got the idea for this one while I was building my first one.
I've yet to fire either of them, but they will see range time in the near future.
Something to know about these rifles is that they are completely covered in cosmoline under the stocks. It took me forever just to take all the crap off of them before even thinking about refinishing the steel. Also you probably won't find a Mosin at Big-5 with any #s matching. They're pieced together from miscelaneous parts.
For $50 each, though, how could I [b]not[/b] buy them???
I've seen a couple nice Garands there, too, but I've passed on them so far.