This may not be relevant, so feel free to ignore. I was using Hornady Sub-X factory 300BLK rounds and they were louder than anticipated. Pretty sure some were going supersonic, but that wasn't the whole story.
This may not be relevant, so feel free to ignore. I was using Hornady Sub-X factory 300BLK rounds and they were louder than anticipated. Pretty sure some were going supersonic, but that wasn't the whole story.
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