With the newly developed soft wad design and antimony-hardened pellets, these shells provide high performance to competitioner. The gunpowder is selected with care and produced for high hit rate. The fast burning primer with high flame length and the other materials have been combined for many times by our Research & Development department and have been tested on modern test equipments. We wish good luck to competitioners.Ammunition cannot be shipped to a P.O. Box, please use a physical address during checkout. For restricted state buyers (CT, IL, NJ), please email a copy of your state's credentials, and a photo ID along your order number to ffl@firearmsdepot.com within 5 business days to avoid cancellation and refunding your order. For California, Massachusetts and New York buyers, please have your dealer email us a copy of their FFL or Ammo Vendor License along with your order number to ffl@firearmsdepot.com within 5 business days to avoid cancellation and refunding your order. Your order will not ship without us receiving this information. Thank you for your cooperation