CM9 Nose Diving like a sunofagun

[jocko]

u just wanna argue now, not really try to help this fella out. Makes no sense to me. but u seem to have a handle on the situation, so maybe we should pay more attention to what ur sayin to.

[tallahasseegreys]

CM9 Nose Diving like a sunofagun

Thanks for all the tips guys. I did indeed have a buddy shoot the gun as well. And he is no novice. He owns about 90 handguns and is definitely an aficionado. He had the same issues I did. What is strange is that the first 200 rounds were absolutely flawless and I was so stoked that I got an awesome gun. Again that was with Magtech and my subsequent Issues were with Lawman. With Magtech I loaded the six round magazine to full capacity and blasted through 200 rounds with no problem. I will definitely go back to the range and see if I can duplicate another hundred or so flawless rounds with Magtech. If that is successful then I will again try to reproduce the problem with the Lawman. Then I will load only five rounds as was suggested and see if the problem goes away.

I do not mind trying things to figure out if it's a small issue that I can fix. But quite honestly I can carry the K9 with no problem; I don't have the time to be tinkering around with this gun If it is going to take tinker followed by range session followed by tinker followed by range session ad infinitum.

I am admittedly a bit frustrated. But I am guessing that it's probably because the other hand guns I have owned including a Khar have all been issue free from day 1.

[tallahasseegreys]

CM9 Nose Diving like a sunofagun

Jocko - With the slide off, I can indeed slide a round up under the extractor with little effort.

[jocko]

other than the lawman brand did other brands act up??? It is strange that 200 rounds of mag tech went off OK and the lawman didnt. If it is just lawman, doing it, then just move away from that brand. To many other great brands and ammo out there to maybe let one brand interfer with ur gun working or not working. My little P380 wouldnot function with 102 grain golden sabre. Worked with the other brands I had kso I went o cobron power ball and never looked back.

Wehave heard from owners who had issues with a certain brand and then just got away from it and only to later on after many rounds down rang eto try it again and it worked OK. Hard to figure.

Heh were just trying to help here, so if all else fails, call kahr and present ur case to them and let them try to sort it out. I would not let one brand bother me, but if it persists with outher brands, then maybe it needs to go back and looked at...

[tallahasseegreys]

CM9 Nose Diving like a sunofagun

other than the lawman brand did other brands act up??? It is strange that 200 rounds of mag tech went off OK and the lawman didnt. If it is just lawman, doing it, then just move away from that brand. To many other great brands and ammo out there to maybe let one brand interfer with ur gun working or not working. My little P380 wouldnot function with 102 grain golden sabre. Worked with the other brands I had kso I went o cobron power ball and never looked back.

Wehave heard from owners who had issues with a certain brand and then just got away from it and only to later on after many rounds down rang eto try it again and it worked OK. Hard to figure.

Heh were just trying to help here, so if all else fails, call kahr and present ur case to them and let them try to sort it out. I would not let one brand bother me, but if it persists with outher brands, then maybe it needs to go back and looked at...

Yep, that's my plan. Hopefully you are correct in that another thousand rounds of Magtech and several months later the gun will be broken in enough to accept anything I put into it. Or if I just have to stay away from Law Man it is definitely not the end of the world. As I indicated in my initial post I am pretty sure but not positive that Winchester white box did the same thing.

If I did not have a stupid meeting all day Monday, I would sneak off during lunch and perform my experiment. So it may have to wait till Wednesday.

[JERRY]

if the gun wont function properly after 200 rounds of factory loaded FMJ, its the gun, not the ammo. send the gun back to the factory.

[tallahasseegreys]

CM9 Nose Diving like a sunofagun

Well, I got back to the range today. Loaded 6 rounds of the original trouble-free ammo Magtech. Second round nose dived. So for the next 198 rounds I loaded only 5 rounds and had zero issues. Towards the end of that, I'd load 5, insert mag, drop slide lock lever to chamber a round, drop mag and load 1 more. No issues.

Then I went to Lawman. Did about 25 rounds as described above. No issues. Then I started loading 6 and was prepared for disaster. Nope. Problem gone. Fired another 75.

Then I went to the Golden Sabers 124gr +P, preparing for disaster. Nope. All 50 rounds good, loaded 6 at a time. Except...

Around round 35 of the Sabers, last round just went click. I will describe more below. Didn't matter if I loaded 2 rounds or 5 or 6. Last round would not fire.

Went back to Lawman. No nose dives. Last round went click. Shot 50 more Lawman and the last round issue persisted and happened at the end of every mag.

I only used the CM9 mag. I did not have another Kahr mag with me.

So, the last round issue...When I say it went click...it didn't actually cock and strike. The resistance to the trigger pull was lower than normal. On several occasions after the last round wouldn't fire, I could feel after about 1 second "something" happen. After I felt whatever it was, trigger pull was normal and shot fired. On other occasions, I could pull the trigger multiple times and feel it almost "catch." Then eventually it would, typically after a few pulls. On a couple occasions that didn't work so I took my weak hand and banged the gun on the side of the slide, after which it would fire.

So I have about 700 rounds thru the gun in a week. Nose diving non existent for the last 398 rounds with 3 different brands of ammo, both FMJ and SD. So I am satisfied with that. But now I have a last round issue. Ugh.

[KoolBreeze]

Hmm, banging on the side fixing the issue makes you think that the striker is dragging or catching on something in the striker channel. Something like brass flakes or just generally gummed up. But if that was the case it should do it on all rounds, not just the last one. Weird.

[jocko]

wow that is odd, the gun can't count, so I wonder why it is always the last round. damn. I can'tsee why anutter mag would make any difference. Is the slide fully going into battery??? Meaning if u taped the back of the slide would it then allow u to fire. course once u pull the triger u then have to at least retract the slide a 1/4:" to reset the cocking cam

Have u ever had the slide apart to clean the striker channel or used that little clean out hole on the bottom of the slide to clean that area with some spray cleaner?? I would thinki it would be har d for this to be gummed up enough to be causing ur issue and again on ther last round, that is what makes zero sense.Look at that magazine and be sure that the follower is still100%intact.

I have no suggestions for what ur saying either. I don't suppose u would have a new outter recoil spring to try out. I am wondering if this could be a possable. being it is the last round doing this whether u load 2 5 or 6 rounds, really7doesn't matter as u stated. Could it be that the magazine spring is not pushing up that round fast enough to get complete return to battery and if the slightest bit out of battery u will get what ur having. Normally a new recoil spring will take care of that. It is a long shot but if u email kahr attn Jay and state what is happening , see if he will et u have a new recoil assembly to test out and if that fails, the gun will need to go back. i feel they will send u one and gamble that it works OK..

Just some suggestions here but with 700 rounds, the gun should have well smoothed itself out to. But we have seen a new recoil spring takes care of alot of issues that might seem unrelated. I gotta give u credit, ur trying like hell to like this gun..

I sent u a PM

[Ikeo74]

Maybe a good cleaning would fix the last round misfire. The trigger may not be resetting for a couple of reasons, powder residue and/or you are not releasing the trigger on that next to last round so the trigger can go fully forward and reset. Try cleaning first. I think the nose dive problem is over. The mag springs must have taken their set.

[tallahasseegreys]

CM9 Nose Diving like a sunofagun

Jocko - Slide is definitely going back into battery. I cleaned the striker channel after the first 200 successful Magtechs last Sunday with brake cleaner followed by compressed air. I have not had the slide completely apart to detail clean.

Also, I am definitely releasing the trigger all the way on the last round. I myself suspected this, and was completely releasing my finger from the trigger altogether on last round. As I mentioned, after about a second I could feel something "pop into place" several times. Other times it would not do it itself and I would bang the gun. Other times I could feel the trigger "trying" to catch. And eventually after several pulls of the trigger it would catch.

I also suspected that maybe it's just dirty as hell because I fired 400 rounds thru it in 75 minutes. So... I am going to clean her nice and good and try again. Jeez Louise!!! After that, I will call Kahr and send it back. I can't afford more breakin/troubleshooting..financially or emotionally.

Also...googling "CM9 last round" fields similar stories as mine. Still sifting thru to find a solution.

Thanks guys. If nothing else this is a great discussion.

[muggsy]

I'm willing to bet that with a good cleaning and lube the problem goes away. Four hundred rounds without cleaning is a lot.

[ZardozCZ]

CM9 Nose Diving like a sunofagun

Check total overall length of rounds. Smack primer side of mag against heel of hand before loading into gun to seat all rounds to the back. Your maglula might not be getting them fully inserted.

Use recommended slide locked open-insert mag - mag release to chamber first round process until you get it sorted.

[ZardozCZ]

CM9 Nose Diving like a sunofagun

Last round issue, brushed out the chamber lately? Might not be getting fully into battery without thumping it?

[tallahasseegreys]

CM9 Nose Diving like a sunofagun

Update: A generous member of this forum shipped me stronger recoil and mag springs. However, after shooting about 500 - 600 rounds MORE than the 200 round break-in period, I decided to send the firearm back to the manufacturer instead. I am running out of money and ammo and frankly patience with the experimenting. I received the gun back yesterday. Comments from Kahr indicate they inspected, polished feed ramp, test fired it with Magtech FMJ and Gold Dot JHP - OK.

So, I am hoping to head to the range tomorrow. I have 200 Magtechs (jeez it pains me to think about how much I have spent on this damn gun just in ammo) and we will see what happens. I promise not to limp wrist, not to not use the slide lock lever to chamber a round, not to let my pinky exert lateral pressure on the bottom of the mag, not to let my thumb touch the slide lock while firing, and all of the other very specific things one is not allowed to do while shooting a Kahr CM9.

I have only owned 3 semi-autos that have never ever ever had a single failure. And I don't mean "no failures except that one time and I am pretty sure I was limp existing." I mean zero failures period. They are all Glocks, and who knows how many thousands of rounds have been digested. My K9 Elite has had 3 failures in maybe 3000 rounds, ok I guess. My CM9 saga is documented here. And I just bought a P238 that is very far from perfect.

Please pray for me!!!!