I'm experimenting with 33.5 and 38.5 NSA. The 33.5's are grouping quite good at 960 fps. I'm waiting for more 38.5 but before running out they looked promising at 980ish. More are on the way.
Set the gun up so I can shoot both without re-tuning. The 38.5's will shoot on MAX and the 33.5's on D on the power wheel.
Using 700 mm Superior Heavy liner.