9x18mm Police cartridge and the Kahr P380

I'm thinking of modifying my P40 Covert's frame so that I can use my CW9's top end on it. I'm pretty sure this will only involve cutting in some clearance for the CW9's barrel lug. To that end, I was surfing the web to see if I can find any photos of how Kahr has done this in the past when I came across some info about the 9x18 Police cartridge and it's use in a Kahr P380.

I can't remember ever seeing this discussed here, so I thought I'd post some of that info and links to the article.
All the following is from http://www.brassfetcher.com

Here are some tables folks might find interesting:
https://s31.postimg.org/7libu45ez/fig3.png
https://s31.postimg.org/5gxyt0gmz/fig4.png
Both charts are from here: http://www.brassfetcher.com/Handguns/9mm%20Police/9mm%20Police.html (I believe this is also the start of the article)

Here's the photo that caught my attention, it's an x-ray of a P380:
https://s31.postimg.org/c8odvliej/Kahr_P380_xray.png
I found it here: http://www.brassfetcher.com/Casualty/Kahr.html

Regards,
Greg

Interesting but be careful!

Makes you wonder if that would be a hand full in a P380. May be no more stout than a .380 buffalo bore hard cast though.

That might be perfect for the larger CT380.

The Buffalo Bore and Underwood +P make quite a kick. I've fired probably close to 300 by now and it still seems like a .357 magnum after shooting .38 specials! That 9x18 seems stronger than I was thinking. Is that hotter than the "normal" Makarov ammo?

Quote:

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Originally Posted by wyntrout

The Buffalo Bore and Underwood +P make quite a kick. I've fired probably close to 300 by now and it still seems like a .357 magnum after shooting .38 specials! That 9x18 seems stronger than I was thinking. Is that hotter than the "normal" Makarov ammo?

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It's hotter than Makarov ball:
http://gundata.org/cartridge/139/9mm-makarov-(9x18mm)/
Regards,
Greg

Thanks, Greg. Quite a bit warmer! http://www.ballisticsbytheinch.com/9makarov.html There's an energy graph, too.