All my chicks are hatchery stock so I suppose none of mine will be either. Now; what are the chances of getting a somewhat good bird from hatchery? And if I were to breed a quality one (not that I have one) with this hatchery stock. How much improvement should I expect?
As Tim said about 1 in 1,000 or more. I do know a few folks that have taken hatchery stock and over the course of 5-10 years turned them into something worthwhile. But it's a long project, a LOT of hatching and almost as much culling. You're time and money ahead in a relatively easy to find breed like Brahmas to start with good stock from a reputable breeder.