I'm getting amazing accuracy from the 30-06/180 PP's in silver box Winchester factories so PP's can be very accurate.
In the 270/130 on game, you'll be increasing velocities to the extreme end of "hold together" for cup and core bullets, which is not a problem in the 180/'06. On the other hand, 270/130 cup and core bullets have killed tons of game--its a classic deer combination.
Why don't you grab a box of .270 WW Super X 130 loaded factories ($18.99 locally)and try'em. You can test the bullets and end up with some nice fire-formed brass without risking much scratch. If you like em, buy the bullets and you're off and running.
