AFTE Store - Breechface Recess Marks Recorded on Cart ridge Cases Expended from Beretta Px4 Storm Subcompact 9mm Pistols

The breechface recess marks noticed on expended cartridge cases fired from Beretta Px4 Storm Subcompact 9mm pistols are presented. The cartridge cases discharged from twenty numbers of the above pistol were examined under a comparison microscope (Leica FS C, x60) for the characteristics of the marks. The marks appeared across the rim of the cartridge cases and possessed identifiable characteristics in some of the guns; while in others they were less reproducible leading to inconclusive results. The marks generated between cartridge cases have been generally distorted and hence needed a careful examination and evaluation.

Full Journal: AFTE Journal Vol 45 No 3 (2013)