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View Full Version : TP45 (new) doesn't like Corbon 230gr +P



Scott321
09-20-2019, 06:26 PM
I just thought I'd post and ask if anyone else has had this experience. On a previous range outing, I noticed that the 185 gr +P Corbon's mouth was deformed on one FTF while breaking in my CW45 (pic in this thread (http://www.kahrtalk.com/showthread.php?32433-More-CW45-break-in-and-testing-P-notes)), no issues with the few 230 gr +P CB rounds tested on that day. However, today I was putting a few rounds through a new TP45 and had issues with the Corbon 230 gr +P (same box of ammo as tested in the other thread). 50 rounds of WWB FMJ, 13 rounds of Rem GS 185gr +P, and 2 rounds of CB 230gr +P. I was limited on time and I was actually there to start break in on another firearm, therefore that's all I shot with the TP45. No issues with the Rem +P or WWB.

The two rounds tested would not fully seat in the chamber without a stout bang on the rear of the slide (yes, I know that this is dangerous). When I compared the Rem GS seating to the CB, I noticed that the CB was hanging out of the chamber about 1-2mm more. It's hard to see in the pic, but you can see it if you pay attention to the 8 o'clock position of the case in comparison to the chamber mouth. I'll disassemble my CW45 and TP45 and do the "plunk test" over the weekend with different ammo.

https://lh3.googleusercontent.com/aG4NCkWKWvkvrgGO-24TJIRPCIEQA8VPCMlLRXAMuqGsQdVt7XLOJ-SRUL8dJFVfHcLlHW5Aq0yipc2Rc5Zcoldmr2OX1_OaQGfbmsTR C3MrcEonLttq21JrZHMufj1jrJy93KFzfw=w2400

Bawanna
09-20-2019, 08:12 PM
That was my first plan, do the plunk test and see how that works out, maybe the ammo is a bit out of spec. Sometimes the Kahr chambers are a bit on the tight side so could be a combination of both, hence one gun eating it and one balking.