Winchester 231 Ball Powder from Canada
Winchester 231 is a spherical ball propellant widely used in .38 Special and 9mm reloading for its consistent velocity. Classified under HTS 3601.00.00.00 as a smokeless propellant powder for pistols.
Duty Rate — Canada → United States
13.25%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Batch test for ball powder uniformity to prevent metering issues claims
• Secure dual ATF approval for powder and hazmat handling
• Package in 1-lb cans max for easier customs release