aaron
Welcome to the forum. I am a 270 fan, but 1100 yards? Yes it is flat shooting and has more selections of bullets than you may think, my favorite is the Hornady 130 grain SST. But most rifle ranges here are 100 yards max. I can tell you it's great at that range, but longer, others will have to pipe in on that.
This is a 5 shot group at 100 yards with a 270 and the 130 grain SST's.
Jim