Well I am hitting 2950 with the 124gr hammers so I doubt I would hit 3000 with the 137'sI’ve got a 24” Proof with 1:8 twist.
I would think you’d get over 2900 fps with RL16 and the 131. I’d run RL26 with the 137 and don’t doubt you could get around 3000 fps. Remmy700 is the one who told me to use RL26 with the 140 gr bullets in the Creed. I think he got 3042 fps in a couple of his Creeds.