Ended up finding really nice, repeatable loads with 90gr GD's @ 2800 fps (H322, 2.290).
Got ok (~1in) loads with 115 GD's @ 2450 (H322, 2.260) and 95gr TTSX's at 2780 (H4198, 2.24).
This 16" PSA barrel shows a definite preference for the shorter bullets. The 115-n-95's did poorly seated long...