</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Large Magnum Rifle Percussion Primers from Mexico

Heavy-duty percussion caps with hotter primer compound for magnum rifle loads, ensuring reliable ignition of slower-burning powders. Classified in 3603.30.00.00 for their role as mechanical-impact detonators in precision ammunition.

Duty Rate — Mexico → United States

14.2%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Differentiate standard vs magnum in invoices to avoid duty disputes

Include flash point and sensitivity test results for CBP review