WARNING this from another forum:
I heard through the industry that Hornady was recalling all of it's Dangerous Game Ammo. I called Hornday to confirm. First I spoke with Bob in Tech. He says they don't know what exactly or how much is effected but that some was evidentally loaded too hot. He couldn't confirm anything. I then spoke to Melissa in sales. She did not know anything but asked her supervisor. She says right now the ammo that is definitely recalled is 416 Ruger 400 grain with Item # 82665 and Lot # 3082057. She said this hasn't even been released yet and I was the first call. Apparently they just found out about it and haven't figured it all out yet. I spoke to Franz, a PH friend in Africa. He says two different rifles experienced catastrophic failures where the cartridges damaged the rifles. According to him it was a 375 Ruger and 416 Ruger. Only the Ruger Hawkeye and CZ 550 are chambered for 375 Ruger and 416 Ruger right now.
Until this is figured out - I'd advise holding off on shooting your 375 Ruger or 416 Ruger, and especially relying on them for any dangerous game hunting. Hopefully no other calibers are included.