Most of the coursing bred dogs the linage goes back to your home bred stuff saluki whippet grey , beddy grey to Salukis eg , but then line breeding started , there’s plenty of dogs out there even today that are home bred no fancy names that will kill hare as good as any , I have seen some good whippet greys x Salukis do the job , I know a lad who lined his old lurcher bitch Weaton grey x to a coursing dog and produced some decent hare killers dogs that could do 2 or 3 regular . IMO it’s all boils down to luck you can breed of lampers and produce top hare killers.