This guide details how to use conversion barrels in Glock firearms, emphasizing the necessity of starting with a .40 caliber slide for 9mm, .40 S&W, and .357 SIG conversions. It explains the critical role of the ejector when switching between calibers, noting that it only needs changing when going from 9mm to .40 S&W, but not between .40 S&W and .357 SIG. The video demonstrates how conversion barrels are thicker externally to fit the .40 slide, ensuring reliability.
This video reviews the 22 TCM 9R cartridge and its performance when converted for use in a Glock 22 pistol. The presenter compares its ballistics and effectiveness to historical cartridges like the 7.62x25 Tokarev and modern alternatives such as the .357 SIG. Testing includes chronograph readings and ballistic gel impacts, highlighting the cartridge's high velocity and surprising effectiveness despite its small projectile size.
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