I believe that you’ve got Ammo simular to what I had purchased from SOG a while back. They weren’t able (or willing) to tell me anything about it so I started poking around myself. After lots and lots of research, I believe that I found that the “60A” designation indicated the location as Nationalist China or Taiwan. The 30 is obviously the caliber. The "62" is the year. Mine was "59". BADS gave you the same link I used to start my initial search.
BTW, that ammo was perfect in one tin, and poorer that 75% in the next. I ended up scrapping 150+ rounds due to the fact that it was either ftf or delay firing (really bad) about 25% of the time. Good luck with your stuff. I ended up purchaseing Talon from the Ammoman. Really nice looking and reliable.
Rome