Recheck time at ATL?
 

Hey all,
I'm flying TYS-ATL-LGW on July 17. I got the ATL-LGW (BA) ticket using someone else's Alaska miles, and the TYS-ATL (DL) ticket using mine. I've been informed that my bags can't be interlined and that I'll therefore have to claim them, go into the terminal, and checkin again with BA. My flight gets into ATL at 4:01 PM and my other flight leaves ATL at 6:20 PM (from the International terminal). Is that enough time to claim, check in, and get to the gate?
Thanks in advance,
Charlie