Picking on one line in a long post, but....
Where in the US do you have trouble getting .40? This is now the dominent LE round in this country and is very widely available (here. Out of the country is another subject.)
In point of fact, with the panic horde buying that happens occasionally, .40 tends to be available when 9mm gets bought out.
Originally Posted by ScottieG59
If I am traveling and seek to purchase ammo, I may have problems finding 40 S&W or 10mm. I will likely be able to find 9mm anywhere I travel in the US.