In the wake of the Supreme Court’s decision in New York State Rifle & Pistol Association v. Bruen, more Second Amendment challenges will turn on courts’ answers to factual questions about history—answers courts may formulate based on the historical evidence compiled by the parties to the dispute. These answers will become precedents that tell us what types of regulations the Second Amendment does and does not permit. What happens to those precedents when new historical evidence comes to light? This Essay argues that the Court should be willing to revisit its precedents when historical evidence demonstrates error in an earlier decision. Revisiting erroneous precedents coheres with the Bruen Court’s theory of constitutional meaning, and it answers the dissent’s concern about the imperfect nature of the historical inquiry that occurs in litigation.