AAC 5.56 With 77gr Sierra MatchKing HPBT: Better Than The Military's MK262?
This video provides an in-depth, analytical review of the AAC 5.56 NATO load featuring the 77gr Sierra MatchKing HPBT bullet, comparing its performance to the military's MK262. Expert analysis from Mrgunsngear, utilizing chronograph data and ballistic gel testing, assesses its terminal ballistics and suitability for self-defense, noting its accuracy and affordability.






