![Image matching algorithms for breech face marks and firing pins in a database of spent cartridge cases of firearms. | Semantic Scholar Image matching algorithms for breech face marks and firing pins in a database of spent cartridge cases of firearms. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/e3b6b34419c811731136856e76686f5e65049447/2-Figure1-1.png)
Image matching algorithms for breech face marks and firing pins in a database of spent cartridge cases of firearms. | Semantic Scholar
![Forensic comparison of fired cartridge cases: Feature-extraction methods for feature-based calculation of likelihood ratios - ScienceDirect Forensic comparison of fired cartridge cases: Feature-extraction methods for feature-based calculation of likelihood ratios - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S2589871X22000572-gr1.jpg)
Forensic comparison of fired cartridge cases: Feature-extraction methods for feature-based calculation of likelihood ratios - ScienceDirect
![Topography image of the breech face impression of a unit of SRM 2461... | Download Scientific Diagram Topography image of the breech face impression of a unit of SRM 2461... | Download Scientific Diagram](https://www.researchgate.net/publication/291016080/figure/fig10/AS:614149436473374@1523436044771/Topography-image-of-the-breech-face-impression-of-a-unit-of-SRM-2461-Cartridge-Case.png)
Topography image of the breech face impression of a unit of SRM 2461... | Download Scientific Diagram
![Anyone know how far the striker is supposed to protrude through the breech face? New arc division slide compared to my Gen 5 OEM slide. Can't find the official spec anywhere. : Anyone know how far the striker is supposed to protrude through the breech face? New arc division slide compared to my Gen 5 OEM slide. Can't find the official spec anywhere. :](https://preview.redd.it/anyone-know-how-far-the-striker-is-supposed-to-protrude-v0-tv8nrtoikk5a1.jpg?width=640&crop=smart&auto=webp&s=089d27364395912f7b83a873f2d7febab5afdcde)