I have three different questions about brass I've shot from three different guns. I have my suspicions about what's going on, and what the fixes should be (if any), but I thought I'd try to get some feedback.
This first picture is brass from my 9" .300 Blackout pistol. The load was Australian Munitions 125 grain using an A5H2 buffer. Notice the two dents on the side of the brass, consistent from round to round with 210 total fired. This was the first time I'd shot this setup.
This next picture is MEN 56 grain 5.56 out of my LE6920 using H2 buffer. Notice the odd cutout/dents on the face of the brass casing. I've shot over 1000 rounds from this gun, and this is the first time I've see the brass come out with these dents.
And lastly, also MEN 56 grain 5.56 out of a different LE6920 also H2 buffer. Oddly, the depth of the primer strike changed from round to round. Is this a primer issue or a gun issue? It's the second time I've had this gun out, low round count of about 210 fired.
All the guns fired fine, with no malfunctions. I was at an indoor range, so wasn't really able to determine the exact placement of where the spent brass was landing. I'll be doing some testing on my own tomorrow, but thought I might get a head start here if anybody has any answers.
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