Hodgdon max load of H1000 in 26" barrel yields 2,861 fps at 61,200 PSI

That's and additional 339 fps to get to 3,200 fps at 50 FPS per inch which is probably generous that would require 6.75" more barrel or a combination of more pressure and more barrel.

Doable, yes, wise, not for me.

Mike


God, Family, and Country.
NRA Endowment Member