Here's one of several pics I found comparing .40 cal barrels. Older (1998) would appear to be less supported:
And that after this is accomplished, and the brave new world begins
When all men are paid for existing and no man must pay for his sins,
As surely as Water will wet us, as surely as Fire will burn,
The Gods of the Copybook Headings with terror and slaughter return!
- Rudyard Kipling, 1919