Top Shot Champion Chris Cheng helps beginners understand caliber by providing some basic yet essential information about ammunition and how to properly match ammunition to a firearm.

Find Chris Cheng's new book "Shoot to Win: Tips, Tactics and Techniques to Help You Shoot Like a Pro" at http://www.topshotchris.com/

Glock 19 courtesy of Salient Arms International: http://www.SalientArms.com/

Ammunition Provided by Winchester

Filmed at the Richmond Rod & Gun Club in Richmond, CA. (NSSF Video)

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