UPDATE>>>>
I installed the 24" TJ .25 liner with a CF shroud and screwed in the hammer tension all the way. Getting 915fps with Kings; 875fps with Baracuda Hunter HPs; and 845fps with Rat Sniper 31gr slugs. All group with 1/2" at 45 yards using a shakey rest. I'm sure the groups will shrink when using a proper rest.
