In my opinion, the 169.5 gr ULD RBBT is to heavy for the 270 Win except for purely paper punching if you wanted to do so.
Richard makes a great 150 gr bullet as well which I would consider the top weight for the 270 Win. I have seen the results of some of these bullets after expansion in a 270 WSM and they expanded perfectly and I suspect they would in the Win as well even though its a bit less powder.
He also offers 130 and 140 gr ULD RBBTs as well along with the same weights in Flat base bullets.
Drop him an e-mail at email@example.com
Tell him what your shooting and what you want to do with your rifle and he will recommend what will work best. He knows his stuff to so the advice he gives will work very well.