Yes, but they used a different bullet (cast vs Xtreme), so they didn't get good velocities and were compressing the load excessively.
The Xtreme 220 is about 0.08" shorter than the cast bullets. I get them over 1200 fps. quite easily in my G40 with Lil'Gun with no pressure signs whatsoever on the cases. Using small primer cases and a magnum primer. You get crazy flyers with faster powders though. Tech at Xtreme tells me that this is due to the copper plating being pretty thin on these. Told them that there would be a lot of interest in these bullets if they fixed that and plated them thicker, but they didn't seem interested. Lil'Gun is pretty slow in this application, so it accelerates them in a more gentle manner, I suspect.
The brass I use (Blazer) also has a lot of capacity vs. other cases like Federal. That also helps.
Longshot is definitely the darling with the 220 cast bullets. AA#9 didn't give the the velocities Longshot did. Only got to a little over 1100 fps. before I ran out of room in the case. Might try AA#7.
Using 5.7gr Autocomp for subsonic load with these bullets. Going to get a Fly 45 soon...