Reports of the demise of the 10mm cartridge have been greatly exaggerated. If new gun launches are any indicator of consumer demand (they are), then the 10mm is alive and kicking; thank you very much.
Anyway, the 10mm has been coming on strong this past year. Considered mortally wounded after law enforcement everywhere moved to the .40 S&W and assumed to be dead and recycled into Shake Weights when law enforcement everywhere moved to the 9mm, it seems to be still kicking. Apparently, it’s the Michael Myers of calibers.