CW45 All Better Now...

[jreXD9]

dang, I've had 4 Kahrs and they all ran like a top...cw45, cw9, pm9, mk9.

[FHBrumb]

It gets better each outing. As soon as it will run through a box or two, without choking, I'll be pleased.

It shoots straight as can be, hand fit is excellent, and it sits well on the hip. I just need it to run, and eat.

[FHBrumb]

As indicated by the title change, my Kahr is running well now. Today, I put another 160 rounds of mixed 230 grain ammo downrange. It was about half FMJ, and the other half JHPs, including Remington Green Box, WWB, Win PDX-1, and three mags of Double Tap that I bought back when they were Gold Dots.

I had exactly one failure. One time, the slide did not lock back on an empty mag. That's it... Maybe my thumb was riding the slide stop, dunno... Not one single failure to feed ever...

A few things I felt helped.

1: My pick up rail had a sharp edge on it. I felt like for whatever reason, I wasn't getting a full rearward motion on the slide, and the pick up was catching the round anyway, and as it hit the ramp, it stood up to a nose high angle. I put a slightly rounded bevel there, and removed the angle.

2: I polished the bottom of the pick up rail and the recoil spring guide rod. I did this to get the slide velocity as high as possible.

3: I polished the breech face to allow the rim to slide up under the extractor well.

4: I cleaned and polished all moving parts of the extractor.

5: I polished the feed ramp and the chamber.

6: Run time.

Thanks for the help along the way!!!

[FHBrumb]

Next up is a set of Night Sights and a mag well bevel...

[RogerP9fan]

Glad to hear all your efforts paid off and yours is ALL BETTER NOW. My new one had a trigger reset issue but a little trigger bar replacement love from the Mothership made it all better. Feeds WWB and Speer GD 230g just fine. Couldn't be happier with the awesome shooting CW45

[FHBrumb]

Another 250 rounds downrange. This time, yellow box Remington UMC, which is the dirtiest stuff I've fired in a long time... Today, zero failures.

The last string was 33 rounds (6, 6, 7, 7, 7), on a dirty gun, as fast as I could fire and swap out mags. At the end of all of this cruddy ammo, it ate all 33 without a hiccup.

[TucsonMTB]

As Yogi Berra would say, "It's déjà vu all over again."

The experience with my first PM40 was nearly identical to yours. I did everything you did, but in a different order. Polishing the breech face was the final step for me that made the most difference, leading to 100% reliability.

Congratulations!

Oh, and I should mention that I recently bought a second PM40. The breech face looks great and it has been flawless since the first round. Go figure!

[Bawanna]

Another 250 rounds downrange. This time, yellow box Remington UMC, which is the dirtiest stuff I've fired in a long time... Today, zero failures.

The last string was 33 rounds (6, 6, 7, 7, 7), on a dirty gun, as fast as I could fire and swap out mags. At the end of all of this cruddy ammo, it ate all 33 without a hiccup.

Nice to see some dirty pictures once in a while. I'm glad you got this thing cured of all hiccups.

[RogerP9fan]

Congrats. I just put another 40 rounds through my CW45 last night after a new trigger bar from the Mothership. Got 170 through now! YES!

[FHBrumb]

So who manufactures a short throw trigger bar?

[jocko]

NO ONE, that to me would be a very dangerous gun


congrates Roger P:9fan. hopefully things willget betterfor you. U have certainly paid ur dues. I am thinking that if u didn't love the kahrs and had faith in them, that you would have moved on a long time ago.

[Iron Worker]

Sounds encouraging

Well they have my CW.40 now. Maybe I'll get an action tune up on their time. If I loaded just 3 rnds in the mag it worked fine.

[bamaman]

Glad you got it running good.

[CJB]

1: My pick up rail had a sharp edge on it. I felt like for whatever reason, I wasn't getting a full rearward motion on the slide, and the pick up was catching the round anyway, and as it hit the ramp, it stood up to a nose high angle. I put a slightly rounded bevel there, and removed the angle.

2: I polished the bottom of the pick up rail and the recoil spring guide rod. I did this to get the slide velocity as high as possible.

I think #1 was probably your best move. #2... didn't really do anything, but polished looks nicer! One of the "problems" is high slide velocity - through lack of weight of the moving parts - so you really dont want to increase the velocity. Look at it this way: With the slide all the way back, there is only so much room between the breach face and the round in the magazine. Very little room when compared to a nice slow moving 1911 slide. As the Kahr slide passes over the top round in the magazine on its way backwards, the round can move up that last bit, only in the amount of time its uncovered, the slide goes fully rear, and starts moving forward again. Thats the magazine rise time. Very very short in a Kahr. Very short by any pistol standards. Hence strong magazine springs are a given. The recoil spring is made very strong on purpose, weakening some with break-in. Hopefully it all balances out when its broken in. Anything you can do to help that rise time problem (like #1) is a good thing!