I haven't had a chance to chrono my 120 grain load because my chronograph is on the fritz. But, according to Hodgdon's book, the max load is clocking around 3100 fps using Varget. I didn't go to the max since I was loading these for my daughter to use, so I figure with the shorter barrel, and the grain or so less that I used, I should be getting just over 2900 fps out of it. Maybe a little more.
I suspect that I may need to do some work to the fore-arm on this rifle to really make it shoot. I'm pretty sure it's touching in a couple of places that it shouldn't.