You are right. I found a guy on Gunbroker who sold a box of Hornady 7mm mag. ammo, with the moly coated 139 gr. Interbond that has a cannelure. It's not on Hornady's website, whether moly coated or not, in any 7mm loaded
I'm guessing the Interbond is possibly just a handload bullet now, without the cannelure, unless some other manufacturer of loaded ammo is using it. That would put it into the over run category I guess.