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  1. Glock Collector's Club
    the 1990 Pocket Catalog and the 1992 Armorer's Manual both say the G20, G22 and G23 have a twist rate of 400mm, which is a typical twist for .40 caliber handgun bullets at handgun velocities. all later manuals say they have 250mm twist rate, which is better suited for 9mm/357 bullets. was that...
  2. General Firearms Forum
    Ok, I've been seeing barrels with 1:16 advertised. Tried a search, but the search engine must not be working. What is the advantages of a 1:16 twist or 1:10 twist? I know in rifles twist lets you stabilize heavier bullets, but with Glock is there an issue with the 1:16 stabilizing heavier...
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