RAY: Ha! We're back. You're listening to Car Talk with us, Click and Clack, the Tappet Brothers, and we're here to discuss cars, car repair and the new Puzzler.
TOM: Wow, is this going to be scintillating? Is this going to be...
RAY: Well, I can start off with a joke.
TOM: Is it part of the Puzzler?
RAY: So to speak.
TOM: Go right ahead.
RAY: Back in the days of yesteryear, when the circus was the "greatest show on earth"--now "Baywatch" is the greatest show on earth, but when the circus was the greatest show on earth--one of the chief attractions was the guy that got shot out of the cannon.
RAY: So, one day, after the performance--the Ringling Brothers performance--the guy goes to his boss and he says...
TOM: "I quit."
RAY: "I quit." He says, "You can't quit! I'll never find a man of your caliber again!" Well, that being said...
TOM: That's an old joke, man. Even I knew that.
RAY: Well, it dates back to the days of...
TOM: The days when it was the greatest show on earth!
TOM: And so that joke is the introduction.
RAY: I'm going to segue...
TOM: Into caliber?
RAY: Right. Now, I got this information--actually, I received this Puzzler from a listener, and I received an e-mail, which I've lost, but here's the puzzle. During World War II, the infantrymen carried a rifle that used .30 caliber ammunition. Now, you may ask, what is a .30 caliber bullet?
RAY: I don't really know what the arcane measurement is, but it happens to be 7.62 millimeters is .30 caliber bullet.
RAY: Yes, or 308/1,000 of an inch.
TOM: Really, so there are 4.2 calibers to a millimeter? Really?
RAY: Yeah. OK?
TOM: OK, yeah, all right. There are? I'm with you, man! Yeah.
RAY: And it just so happened that when hostilities broke out between us and the Japanese--I think they actually broke them out--that they hurriedly began to make rifles that would fire a .31 caliber bullet, or a 7.7 millimeter bullet. Why would they do this? That's the question.
TOM: Just being contrary, I guess.
RAY: Just being contrary.
TOM: You would expect the French to do it, but not the Japanese!
RAY: Not the Japanese. They're pretty practical. Why would they do that? I mean, they actually had rifles that had smaller-caliber...used smaller-caliber bullets. But they went out and made a .31 caliber rifle. Why would they do it? If you think you know the answer...
TOM: They probably got the drawings from Italy, and they were a little sloppy with the dimensions.
RAY: That's exact.
TOM: It's a "we got to give you a couple extra calibers."
Think you know? Drop Ray a note!
[ Car Talk Puzzler ]