I picked up the Franklin one last year. Installed in an Anderson lower to test it out. Ran a PSA upper on it with no issues. Put a Bravo Company upper on it and can't get more than a shot or two before it fails. Threw it in the safe and haven't messed with it since...
Lube it really good and give it another whack with some bulk Federals from Wal-Mart (the 525 round boxes you can't find anymore...)!
It took a couple hundred rounds of the bulk stuff to work itself out of jams, FTF, etc..., but mine runs really, really well now.
http://www.theoutdoorstrader.com/threads/264654-Anybody-hunt-with-a-303?highlight=303+hunting
http://www.theoutdoorstrader.com/threads/254487-Anyone-hunt-with-a-Milsurplus-rifle/page3
Page 3 shows a British .303 with a deer.