Today I shot my first handloads for this rifle, a Savage 340e in 22 Hornet. Maybe because I was paying extra attention, I noticed the gouge or cutout shown in this photo:
If you zoom on the photo you can see right above the feed ramp there is a depression. I wasn't able to capture all of it in the picture, but it's almost exactly 180 degrees. I'm trying to determine if this is damage to the chamber or if it was cut there intentionally. My hypothesis right now is this is an extractor relief cut.
I have been doing some "Google-fu" but haven't turned up a picture of one of these to compare. Any shared expertise would be greatly appreciated!