What is more powerful 38 special or 9mm?

The 9mm cartridge is generally considered more powerful than the .38 Special. It typically offers higher muzzle velocity and energy, resulting in better performance in terms of penetration and expansion. While the .38 Special is known for its accuracy and manageable recoil, the 9mm is favored for its increased firepower and capacity, making it a popular choice for self-defense and law enforcement. Ultimately, the choice between the two also depends on personal preference and specific use cases.