jpt,i,ve got my name on a pup from the litter your talking about, and i,m very confident they will catch rabbits.dont listen to collie x owners who just run bull x down regardless.i run my bull x with wifes oz,and you wont see a heavier bull x than him and he catches them! speed isnt every thing and i know! my ex track greyhound was a rocket but would just overshot by miles.pick a tall racy pup and he will catch rabbits!!!! (and if your quarry ever changes you will have it covered aswell)