Currently seeking a suitable pistol for HFT, have narrowed it down to a HW45, Reximex Mito, or PP700 in that order

Pellet choice? I've shot 20yd pistol before with flat head pellets, but that was with a Steyr EVO10e match pistol (RWS Geco/R10) but with HFT pushing out to 30yd I've got to consider a lighter diabolo pellet that will work well at sub 6ft/lb

JSB Exact Express, H&N Excite Hammer (I've got some of the latter to try already), anything else I should add to the list? Crosman? Wasp?