New Rami Jamming

[Olmichelson]

I just picked up my new Rami about  week ago and immediately went to the local range. Much to my dismay, my first round did not load into the barrel. I ejected it and the second went in. I made a couple of shots and then the same thing happened. The round goes partially in and then jams. If I pull the slide back slightly, the round will usually go in. Out of 100 rounds I would say at least 10 to 15 jammed. I had brought a snake bore along and ran that through a few times when it jammed just to make sure it wasn't dirty, but that did not seem to make any difference. I was using new manufactured FMJ 115gr Lawman and Freedom Munitions ammo. I have not had any problems with either of these rounds before. After I got home I cleaned the gun and tried loading some rounds just to see if the cleaning made any difference. It did not, the round still jammed about 1/3 of the way in. Any ideas?  I have never had any problems like this with my Sigs, Springfields, or Rugers. I really hate to have to send a brand new gun in for warranty work. 

[Grendel]

Clean it thoroughly, including the magazines.

Try other (hotter) ammunition. Some guns like different bullet profiles until they get some rounds through them. Drop test them in the barrel to make sure they chamber fully.

Do the cheap checks first before the expensive ones.

[Olmichelson]

Thanks for the suggestions. I did clean the gun and both magazines. I am not sure what you mean about using hotter rounds. I guess I am disappointed that the gun had problems right off the bat when I had read how reliable they were. For a carry gun it does make me a little nervous to not have it reliable right out of the box.

[357MAGNOLE]

I agree and it should be reliable after a good clean and lube. Call CZ and send it back, also it's totally possible the recoil spring is weak. Not having enough force to load a round properly.

[cntrydawwwg]

First, welcome to the forum.
    Sorry to hear the issues.   Just to clear up, you tore the pistol apart and cleaned all the gunk off?
     You took the mags apart, cleaned and relubed?   
      Sorry, just double checking. I've seen some guys that think cleaning consists of wiping down the outside and running a patch down the barrel[emoji6].

     Another thing to try is that CZ's like to run a little wet. So a good lube is great. Slide rails, trigger bar, sear, etc. They can run pretty dang dirty as long as they are lubed up good.
   As has been said, you can try different ammo also.
   Being that the Rami is smaller, could you be riding the slide a little with your thumb?
      Did you have trouble with both mags?
       If not which one had issues?
    It could just be that the feed ramp needs polished.
    If all else fails then ya, you'll probably have to send back. CZ USA will take care of you.
    And yes, it's a little discouraging having issues with a nee pistol.

[MeatAxe]

CZs usually come from the factory soaked / caked in cosmoline grease, more so than most pistols I've seen -- probably because CZs aren't blued or finished on the inside. All that gunk needs to come out before shooting it.

The best way to get all that gunk out is to field strip it and soak the gun overnight in a bucket of Hoppes #9 (remove the grips or other wood or plastic parts). Also, if it has night sights, make sure the sights don't get submerged in the solvent. The Hoppes will dissolve the grease and use of a bore brush will clear any residual gunk from inside the barrel. Blow dry with compressed air and lubricate.

Also, I don't use bore snakes, since they accumulate grit and gunk that gets dragged through the bore time after time.

[Ruber]

Yes, thorough cleaning is key.

Another thing I do with a new gun is pull the grips off, strip it down and clean it, then put it together without the grips and soak it in gun oil or mineral oil and cycle it.  Cycling it while immersed helps lift the gunk away.

Typically then I'll then use an o-ring around the firing pin and dry fire 100 times da and 100 times racking the slide.  I'll clean it off and repeat until the oil is coming away clean.

Not the quickest process, but I don't waste range time on ftf's either...

[Bossgobbler]

Try other ammo,  Freedom Munitions ammo is known to have some issues running in CZ's.  They load some of their ammo to long to fully chamber, Cz's have a short chamber. 

[Olmichelson]

Thanks for all the great suggestions. When I first picked it up it did look "lubed" up a lot more than my previous handguns. The first time at the range I had not cleaned it, but as I said, I did run a bore snake through it, from the inside of the chamber/barrel to the outside. I could see that I cleaned the loading ramp because it had looked somewhat dirty before I did that. Overall, that cleaning did not appear to make much of a difference. When I did clean the gun, I took it apart, per CZ's instructions and cleaned the barrel, slide, inside and out, and every exposed part I could get to. I then rubbed everything down with a Remington oil cloth (that leaves little, if any excess oil), and lightly put some white gun grease that I had ordered from the NRA on the slides and othe moving parts. Very lightly. After I put it back together it seemed to function as smoothly or better than before I cleaned it. I took both mags apart and cleaned the excess oil from the springs and inside walls of the mags. I loaded the 14 round mag with 14 FMJ 115gr Freedom Munitions new manufactured round nose ammo. The slide stuck in the same place as it did before I cleaned it.  I pulled the slide back not more than a quarter of an inch and the round then loaded. I jacked that round out and the next one jammed just like the first one. Basically, same issue as when I was at the range.  I did that three more times with the same results. At least a 20% fail to load. Although it was the Freedom Munitions ammo, it was their new, not remanufactureed ammo, which has not had any problems in any of my other handguns. Durning my tryout at the range I also used Lawman 115gr FMJ with the same results.  Not sure what else to say. Maybe I got a Monday special. I have sent an email to CZ-USA to let them know about the issue. At this point, everyone's enthusiasm about their CZ's is heartening, but I do have to say that I am a little disillusioned.  Still, I appreciate the help and comments from everyone!   

[Ruber]

If the gun is clean and smooth but having issues feeding, you could also look at the extractor.  Anything that puts extra tension on the case, debris, burrs, etc.

Personally, I'd take the grease off.  Any extra resistance gets magnified on a gun that small.

Good luck, hope you get it worked out.

[Bossgobbler]

Take the barrel out of your gun. 1 hold it with the chamber up. 2 drop a unfired Freedom Munitions round in the chamber. 3 try to turn the round with your fingers. 4 turn barrel upside down and see if the round falls out by it self.

[schmeky]

One issue we have seen is the firing pin exit hole in the breech face.  If there is even a tiny ridge at this area, the case rim will catch and cause an angle jam where the round is canted and won't enter the chamber. 

We have fixed a few RAMI's in 2015 that had this issue.  We will take a before and after pic to show what this looks like.  We use a very long carbide drill bit to enter from the muzzle end of the slide (with the barrel removed) to lightly chamfer this hole.  This ensures very reliable feeding. 

[cntrydawwwg]

I then rubbed everything down with a Remington oil cloth (that leaves little, if any excess oil), and lightly put some white gun grease that I had ordered from the NRA on the slides and othe moving parts. Very lightly. 

   This is what I was saying. It's ok to have a little excess oil, CZ's like to be a little wetter than most.
     Depending on outside temps, the white grease could slow the slide down.
   Besides doing the plunk test that Boss described, I would still try to add some drops of oil on the trigger bar next to the frame, couple drops in the sear, and in the slide rails. Not saying anything wrong with the grease, but the new Rami is a tight gun and may need extra lube until it loosens up a bit.
     Did you notice if your issue happened with both mags?
    Stick with us, I know it can be frustrating. Just keep in mind, every manufacturer out there may have an issue with a brand new gun. CZ USA will take care of you[emoji6]
 
Schmeky, that's interesting. It would be nice to see pics.
       (Edited for spelling because apparently even with spell check, I can't spell worth a darn tonite[emoji2])

[357MAGNOLE]

Agreed ^^^^

I would like to see what you are talking about David.

Do you do that on all RAMI's?

[schmeky]

First pic shows the firing pin breech exit hole as delivered from the factory.  Note the hole is not concentric, which is unfortunately pretty common.  In rare cases, there is ridge or lip of metal that can dig into the case rim and cause a jam.

So we chamfer this hole per the attached pic.  We began doing this as standard procedure in 2015, so we can catch that 1 in 2,000 (or so)!  This ensures the case rim will not have anything to dig into and contributes to smoother feeding.