I had a partial case head separation using a 1.8oz buffer

[LRRPF52]

This photo is really odd to me. Does anyone else see what I’m seeing?

Notice that the alleged Hornady brass samples on the right are much taller, and the sectioning hasn’t been cleaned up like it has on the Lapua and Starline cases.

Reason I noticed is because I’m used to looking at sectioned pieces, and have had cases professionally sectioned for me by an exotic alloys metallurgist and engineer who does funded studies on medical devices, as well as being a doubly-trained gunsmith and competitive shooter and reloader. This guy uses digitally-enhanced Zeiss microscopes to analyze and photograph microscopic laser weld deformation on exotic alloys like NITINOL for his profession, specifically failure node analyses and materials inspections.

The Lapua and Starline cases have their cut lines cleaned up pretty well. The Hornady cases have jagged and folded edges, particularly around the areas of the case on the base and web. We can’t really make conclusions based on this photo for that reason, because the sectioning process is not consistent across the alleged brass types just from a dimensional perspective, let alone metallurgy and processes.