Does a longer barrel improve performance? 9mm carbine 124gr Federal HST gel test
This video investigates whether a longer barrel on a 9mm carbine genuinely improves the terminal performance of ammunition. It features a test using Federal 124gr +P HST ammunition fired from a CMMG GUARD carbine into calibrated 10% ordnance gelatin to assess its ballistic characteristics and expansion. The content aims to address common assumptions about barrel length and its impact on pistol caliber carbine performance.










