Introduced in the '70;s by IHMSA founder Elgin Gates, the .375 SuperMag required longer frames and longer chamber firearms made by Dan Wesson and later by United Sporting Arms. These bullets mimic the discontinued Hornady 220's though they prove to be ~200fps faster than the Hornady bullets with the same powder charge. These are perfect 220 grain bullets to reload for your .375 SuperMag Firearm!
Bullets are made by hand in the USA after orders are received and can take over 6 months to receive.