The message I take away from that is that if you are conservative in your loads, you'd better have a reason other than velocity to use BH209 because you'll be paying a lot more for similar performance.

At the top end, however, you WILL get more velocity from BH209 and if you're willing to pay for performance you will get it.

To get the BH209 velocities shown at 120gr you'd have to use about 130gr of 777. I get 1950 fps with a 325gr bullet from a 26" barrel and 135gr 777. I'd point out that the max load for 777 is supposed to be 135gr so at "max charge", 135gr 777 and 120gr BH209, their velocity is about the same. I know some people use more BH209 than 120gr but I'm going by recommended limits here.

It is clear that the velocity curve (fps gained per grain of powder) for BH209 is better than 777 at the top end.