I agree with Jeff , if the average person wants to breed their own , crossing any two meat bird breeds will nearly always produce a pretty good meat bird , and the Cornish X's size , carcass qualities , feed conversion abilities , and rapid growth make them a good choice to throw in the mix . When I was a kid , the better strains of dual purpose chickens fed out in 16 weeks on considerably lower [ which translates to cheaper ] protein mixes than used for today's meat breeds . New Hampshire Reds and Plymouth Rocks were among the best for rapid growing meaties , and many farms used Rhode Island Reds as layers that produced big roos that fed out just a little slower than the New Hampshire [ which was basicly a RIR chosen for quicker growth ] . I posted a link to the first government sponsored contest to develope a better meat bird for the American consumer . The winner was a cross of Cornish X NHR and I believe runner up was a pure Barred Plymouth Rock . Cornish crosses took off , followed by Cornish hybrids , and the purebred dual purpose chickens began to loose popularity . Part of the decline of these better dual purpose breeds was due to technology coupled with farms growin to huge proportions and you no longer had millions of 160 acre farms with the owners living largely self-sufficient lives . Closest thing in appearance you will find to the old DPs are exhibition strains , usually bred for beauty , not productivity . Jeff B is fortunate to own some Buckeyes bred to recapture the traits as well as the look of that breed .