Roskoe
From what I have read and the old APP powder that I used -it is not t7 it is cleaner but it is not as powerful anyway across a chrono it isn't. I would believe it to be more comparable with the Pryos, but again a heck of a lot cleaner...
I would guess you should be able to reach 2000fps - I am shooting 260's at 1850fps with a 100 grains of t7 - if my memory is right... I am at school right now so I can not verify that...
There is one individualon another site claiming 2400fps but I do not remember powder or charge. He even shows a picture of his chrono reading - hard for me to believe but i guess any thing is possible anymore.