40 S&W Question

I am obviously a rookie by asking this question, but here goes......

Are the 10mm and 40 S&W the same? I am trying to buy some bullets online and most things that I am seeing are 10mm. It says the bullet diameter is .401. Will that still work for my 40?

yes.

The bullets are the same, but the 10MM cartridge as a whole won't work in a 40 sw because it's a lot longer.

10mm is what I load in my 40 S&W rounds.

44

+1, get mine from Montana Gold Bullets, link below.

Linky: Montana Gold Bullets