Gotcha. I'd knock off about 25fps an inch and expect 3,000fps to be a reasonable ceiling if H got 3,050 with their 24" tube. If it were me, I'd load about 43.7 and see what I could do for accuracy with a couple of different overall lengths. If you're shooting it in TX recently, then you're probably dealing with reasonably warm weather, so you should be good for pressure even if hunt temps get up to 85 or so. I'd try to shoot for accuracy on a cool morning with no wind.
