Friends All........Gloria Ardesi from Pedersoli just sent me an email with the barrel specs on their rifled 12 bore double......Bore@.724" and Groove@.732"
Some clarification about Dixie Slugs....we have developed a line of 3" 12 ga slug loads for rifled barrels that are designed for modern firearms. However, we do supply both muzzle loaders and those that load fixed ammo, two different styles of 12 bore slugs, both around 730 grs, depending on alloy or pure lead. Both run about .732", again depending on the metal mix. Both are "squared" (length vs diameter. The Terminator slug has a crimp groove for those loading brass hulls......James@Dixie Slugs