At the end of the day, the 300 Blackout and the 5.56 NATO both serve their purposes well. The 300 Blackout is the real heavy hitter when it comes to power, suppression, and close-quarters situations.
partly because many shooters do not understand the difference in it and the 300 Blackout, but also partly because it only became SAAMI-approved in 2020, which was right in the middle of the current ...
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