I had some of that a few years ago. I found it Berdan primed, VERY dirty to shoot, and not terribly accurate. A friend of mine ordered some ammo from Samco last year and he was very upset at the shipping cost, check that before you place an order. Also this was NOT given to Iran, but was made there, which in my book makes it suspect anyway.
For my money, I'd buy the CMP ammo. It's HXP, made in Greece, boxer primed and fully reloadable or you can sell the brass for 20 - 25 cents each, and shipping is at actual cost. I bought some last month and it's beautiful ammo, and comes in a 30 cal ammo can. Great accurate ammo and a really good price.