What powder are you using for each bullet? Your load for the 120's seem a little hot compared to Barnes data, but depending on what powder you are using, another grain and a half of powder might get you there. Barnes max loads were topping out in the high 2700s to low 2800s with a 24 inch barrel. If it's still not fast enough for your liking, try Superformance. Barnes said the max load gives 2916, but be careful because they also list it as a compressed load.