10mm pistol and carbine. or go 9mm

[Dunross]

I have been having this same discussion with myself these last several months - 9mm or 10?

The 10mm is the better carbine cartridge in my opinion, but the 9s have most of the market action. Far easier to find ammunition, accessories, and more models in 9 than 10

Maybe one day I'll go both ways, but for now I'm going with 9.