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Ken L
07-08-2014, 11:57 PM
Hello fellow Kahr-talkers!

I was at the range today for the second 100 rounds or so of the break in of my CW40. Everything was going fine until about round 150, where I had a FTF (failure to feed) on the last round of one of my newly purchased 7 round magazines. I chalked it up to the Herters ammo I was using. Well a couple of strings later, I got a FTF with the factory 6-round mag. And then another on the same 7-round mag. I marked the 7 round mag that had the FTF, since I have 2 7-round mags and one 6-round mag.

I've inspected all magazines and none of the followers are damaged. Upon stoppage my technique is: drop the mag, clear the chamber, inserted a new mag and keep firing. The only FTFs I've had were on these same two magazines and it didn't seem to discriminate, I had FTFs with Herters factory 180g loads and my 180g handloads. However, towards the end of the session (last mags with each of the offenders, 180g factory Herters loads) I didn't have any FTFs with these "offending" magazines. I didn't have my usual WWB or Remington ammo with me, only the Herters and my handloads The handloads are loaded with 5.2g Unique BTW. Only 33 rounds were my handloads.

My question is, do I need to polish the **** out of the feed ramp, run more rounds downrange (which I intend to do anyway) or send the pistol back to Kahr? I am really impressed with how this gun handles, including the trigger stroke and the accuracy. I was asked today at the range by a new shooter what my favorite handgun to shoot was, and I was hard pressed to chose. I had with me the Kahr CW40, Glock 22 with a Wilson Combat barrel and Tru-Glo green front sight, Ruger Standard Model (pre-MkI) and Taurus TCP. I told him the Glock because it has gone "bang" every time I've pulled the trigger except once, and since I have fired it over 8,000 times now I thought that's pretty good. The one failure to fire with the Glock was attributed to a bad factory r

The last magazine full I fired with both of the offenders resulted in no FTFs. I am asking the powers wiser than I, do I have anything to worry about? If I am to carry this weapon, my expectation is for it to make noise every time I pull on the bang switch.

I do not intend to stop shooting this CW40, just want to know when I should be able to trust it and all the externals. Right now I'm at 233 rounds total, with 5 FTFs, 3 on one 7-round mag and two on the 6-round mag supplied with the pistol. All FTFs occurred in the last 133 rounds.

Thanks!

RRP
07-09-2014, 03:01 AM
You have nothing to worry about, Ken. Occasional hiccups are common during the break-in period.

You say the problems are intermittent and cannot be attributed to a particular magazine or ammo type. Interestingly, the problems did not present themselves until after you shot 150 rounds (40 S&W) from the little pistol. I suspect, then, that fatigue contributed to the stoppages, as did a pistol that was getting increasingly more dirty.

Clean 'er up and give it another try. I'm guessing you'll be pleased with the results.

bob98366
07-09-2014, 03:29 PM
I suspect, then, that fatigue contributed to the stoppages, as did a pistol that was getting increasingly more dirty. Clean 'er up and give it another try. I'm guessing you'll be pleased with the results.

+1 New Kahrs are tight so need to be clean and well lubed. Early on I had exactly the same experience with two CW40s (FTF toward the end of a range session) and now both are flawless (2,000 rounds fired in each). FWIW, for carry ammo Hornady's Critical Duty (175 grain bullet) has always fed properly and gone boom in mine. I think the conical bullet shape is a contributing factor.

Brownie65
07-09-2014, 04:34 PM
I have a new CM40. It feed 4 different kinds of ammo perfectly, except Fiocchi 170 gr FMJ. Numerous ftfs at various points from the 5 round mags. The Fiocchi has a somewhat conical shape that my Kahr just doesn't like.


———You can't always get what you want, but if you try you get what you need.

Ken L
07-09-2014, 06:01 PM
I figured it was a break-in period issue. What was weird though was the first 100 rounds I shot (first time out with it) functioned perfectly. No failures of any kind. The gun was clean, this was the second range session with it. The FTFs started after the first 50 rounds this session. I guess I thought if something was going to happen it would have during the first session, not this one. Well, that's why we shoot 'em!

Thanks for the replies. I'll try different ammo next time, see if that makes any difference.

bob98366
07-09-2014, 10:17 PM
I have a new CM40. It feed 4 different kinds of ammo perfectly, except Fiocchi 170 gr FMJ. Numerous ftfs at various points from the 5 round mags. The Fiocchi has a somewhat conical shape that my Kahr just doesn't like.


Mine didn't like Fiocchi either, but I thought it was the sharp front edge of the bullet that was the problem. Bottom line is find a carry round that works everytime and use it.

berettabone
07-10-2014, 10:04 AM
I know it's a different animal, but my MK9 fired flawlessly for the first 150 rds. Then 3 FTE"s on the next 50. Cleaned it up, lubed good, polished the feed ramp, and haven't had one since. By the way, mine shoots Fiocchi with no problems..................