Firearms and Ammunition - As introduced, requires TACIR to perform a study on the impact of this state's firearm laws on each county's firearm sales, criminal offenses, and use of firearms for self-defense, as well as identifying the similarities and dissimilarities between the impacts on each county. - Amends TCA Title 37; Title 38; Title 39 and Title 40.

HB 514 requires the Tennessee Advisory Commission on Intergovernmental Relations (TACIR) to study how Tennessee's firearm laws impact county-level firearm sales, criminal offenses involving firearms, and self-defense firearm use. The study must identify similarities and differences in these impacts across all counties. TACIR must complete the study and report findings to the legislature by January 1, 2026, with state agencies required to assist. This bill does not change existing firearm laws but mandates a data-driven analysis of their county-level effects.