I've been a fan of conversion barrels. I like .40 cal weapons because they are able to convert to .357 and 9mm. With 10mm I can convert to .40, .357, and 9mm and a couple of more. With some platforms like large frame Glocks, 20/21 and 29/30, I can have one frame and switch slide assemblies and go from 10mm to 45 and back.
It's not just for ammo, but just simple cost.
__________________
Thread Killer.
|