No but check out R26 and 150's in the 280AI it's a good match and since this and with the 270 you can get to 3,000 fps safely I would expect the same from the .280.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli