leichliterk said:

[quote author=ChasF link=1236524898/15#25 date=1238216262][quote author=leichliterk link=1236524898/15#24 date=1238209681]Assuming little or no operator error, that gives me a minimum thickness of 0.0990 in. The P40 is probably different, but not anywhere near 0.027 inches like that one guy claims. I'm leaning toward throwing the BS flag.

Actually, one more step is needed to arrive at the wall thickness - divide the difference in measurements by 2. This will give a 0.0495" wall thickness. Still double the thickness reported.

[/quote]

That was a pathetic,

[email protected]$$ mistake on my part! Wow. Can't believe I left off the last step. I'm not a mechanical engineer, for sure, but as a software engineer I definitely have enough math under my belt to know better than THAT!!!

OK, if everyone is sufficiently appeased, I'll stop groveling now.

Ugh. So embarrassed... :-[[/quote]

Here is the deal, the P11 barrel ID is much smaller than the P40, the OD is the same both guns that makes the P11 have a thicker barrel. The 9mm bullet is .355 to .356 inches in dia. The 40 bullet is .400 to .401 inches in dia. making the wall of the barrel much thinner on the P40. So bottom line is taking measurements of the much thicker P11 barrel has nothing to do with coming up with an accurate dimension for the P40. The numbers I gave were accurate in the previous posts.

The strength stated in the post according to wiki is 32,633 psi. That means that a piece of steel 1 x 1 x 1 inches will withstand 32,633 psi. The steel on the P40 is .027 inches at the thinnest point. The steel on the P40 barrel is much stronger than the steel Wiki listed more like 97,200 PSI. so if this stuff was 1 inch thick it could take 97,200 PSI for extended periods. It would take computer program, or 2 pages of high level math to calculate the strength of the P40 barrel. These things are not easy for the average person to understand. The numbers say the P40 barrel is way to thin, and the P11 barrel while very thin too, is not in danger of separating. The SAAMI max pressure for the 40 S&W is 35000 psi. Don't forget to factor in heat, and pressure together. Along with the stress of the bullets friction. If you leave these out you will not get an accurate picture.

I am considering a law suite against Keltec, and I will not post any photos until after that is settled.

All of this can be verified easily, do some research, measure a P40 barrel, crunch some numbers, there is nothing like knowing the truth, and it is out there.