"Jeff R." wrote in message
...
Wes wrote:
Don Foreman wrote:

.380ACP *is* a nine. 9mm x 17mm.

DAMMIT, I felt like Kurtzing after that mistake.

Well, close enough for Gov't work.

9mm = 0.354
9.652mm = 0.380

..but who's quibbling?

But the actual bullet diameter of a 9 mm is around .355". It's like the .38
Spl., which is within a thousandth of .356. The .380 bullet typically
measures .355.

These are close to the nominal groove diameters, so that doesn't explain the
discrepancy. The best explanation I've heard is that manufacturers often are
"creative" about naming calibers.

--
Ed Huntress