Why is the exit wound of a bullet always larger than the entry wound?

The exit wound of a bullet is typically larger than the entry wound due to several factors, including the deformation and expansion of the bullet as it travels through tissue. Upon exiting, the bullet often creates a larger cavity as it pushes aside more tissue, and the pressure and shock waves generated can cause additional damage. Additionally, the bullet may lose structural integrity upon impact, leading to a more irregular and wider exit pathway. This combination of physical effects results in a larger exit wound compared to the more focused entry wound.