First off, you can absolutely use your hunting bow in competitions! There are some competitions that have restrictions to draw weight, stabilizer length, etc. But most hunting bows will fit into any competition category. Having said that, most archers that are serious about competitive shooting will usually have a specific competition bow. Compared to a regular hunting bow, target bows tend to have a longer axle-to-axle length, lower let-off percentage, and a longer brace height.