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  1. 9mm

    Polygonal barrels?

    Different manufacturers have their own poly type rifling… always seems to be subject on every Reloading forms, Glock forms, and also been a topic on this form before. Myths and opinions to each caliber, velocity, twist rate and etc. toku58….you have a dirty barrel lol 😝 could also be given you...
  2. 9mm

    Polygonal barrels?

    Hmm…🤨
  3. 9mm

    Polygonal barrels?

    Glock uses polygonal barrel and says not to use “lead” reloads or lead ammo cuz it will fill rifling. Not a fan of Glock or type of barrel. 😏 I reload and gun is over priced for what they are selling.