I have a Brux 29.5" on mine. Im getting 2893 fps with 94 grains of H1000 with a spread of 5 fps.
Very, Very accurate, but the gun is muzzle heavy.
I should have gone shorter and given up a few fps.
I was all about squeezing fps out of the gun, but after shooting and packing it I wish is was a little more "friendly" while lugging it around at 11,000'.
Generally speaking the chambering is very accurate and easy to load for.
Accuracy kill, not speed.
Hind sight is 20/20