Thanks. The only area I am concerned with is the black area right behind what shows up as really bright where the chamber ends. Is that firecracking or is that likely a carbon ring?
Here is a video which might show this better.
What makes me think it could be a carbon ring is the difference in velocities I was getting over the last few days...like a ~60fps increase. Dates, temps, etc are on each chart. Unless noted, all seating depths are .020 off the lands.
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