Ohio Magazine Limit: No Current State Cap

Ohio Revised Code section 9.68 states the General Assembly's finding that uniform statewide laws should govern the ownership, possession, purchase, acquisition, transport, storage, carrying, sale, transfer, manufacture, taxation, keeping, and reporting of loss or theft of firearms, their components, and their ammunition, and it preempts conflicting local ordinances and other political-subdivision actions. Its exceptions cover zoning ordinances on where and when commercial firearm sales may occur.

On October 9, 2026, the Fifth District Court of Appeals affirmed a Delaware County preliminary injunction against Columbus's large-capacity magazine and negligent-storage ordinances, finding the challengers likely to prevail on their section 9.68 claims (Doe v. Columbus, 2026-Ohio-3991). The ruling addresses a preliminary injunction rather than a final judgment.

There is no federal magazine capacity limit; the 1994 federal assault weapons ban expired in 2004.

Federal baseline verified 2026-10-20. Scope: Detachable magazine round-count restrictions for handguns and long guns. States not listed have no capacity limit.