Question: what is the difference between cross rib roast and prime rib?
Answer: Prime rib refers to standing rib roasts from the "best" section of the rib, typically from bones 13-17. ... Cross-Rib isn't actually from the rib section, but from the shoulder or chuck, as it merges into the rib. It is a tasty but tougher piece of meat and used as a pot roast, rather than an actually roasted roast beef.