The Trackers have a very short cylinder, I'm not positive but I don't think even a 270gr Keith will fit - just a bit to long - so you'd be limited to lighter bullets.
Taurus used to say their 5 shot 45 Colt was rated for +P loads, but as far as I know never specified exactly what they ment by "+P" nor have I ever heard of anyone shooting Corbon hunting level loads through one.
I don't have one but my guess is the gun should be limited to something around a 255gr @ 1,100-1,200 fps as a max load. That's going to be a +P but not a raging monster load like you'd get from Corbon or Buffalo Bore.