CZ 527 has never ejected 22 hornet cases

First off... glad to know your wife is doing well now.

Questions...

1) Did you buy your 527 new or used?
2) has it always had this problem?
3) Has it become progressively worse or about the same over the years?
4) Do you normally use the magazine or single load from the top?
5) If you single load do you use a sled, lay the round on the top of the mag, or simply insert the round into the chamber and slam the bolt forward?

If the ejector spring is strong enough to move the ejector all the way under the rim of the cartridge, it should eject... unless the extractor claw is chipped or otherwise out of alignment.

ACES&8S said:

Had this CZ a long time, about 18 years, I guess. and it has never ejected
cases very well.- CZ 527 American
It shoots fantastic and use it for fox and turkey, but I just put up with the
problem all these years. When I first got it there was a medical problem
with my wife and it took a long time to get her past it, she is very well now.
I assume the warranty ran out before I got around to shooting it much.
Back then it just took one shot anyhow, but time has made me a bit shaky.
So, I was wondering if it is an ongoing problem with this caliber anyone else
has had or if this is a need to replace the ejector and spring, or even the mag?
The ejector spring feels strong, but the cases fall right back in front of the bolt.
I can get the parts from Numrich but if it is a factory defect I would be
chasing a no can do problem, because of what the magazine looks like,
it is to short in the first place, even in reloading lots of bullets are way to
long for it. Almost like the magazine is made for a couple of calibers and
the - lifter - I guess you call it, seems to long and makes the cartridges
to far forward.
Does anyone out there have this problem?
Sorry for the long explanation.

Click to expand...

The extractor? As far as I know the 527s are blade ejectors, and as long as it spring pushes it out enough to hit the case it SHOULD eject.....or try to.
If it's dropping the round in race way, I'd look at the extractors tension. See if it holds the case securely when out of the rifle, if not, there's your issue.

Also the 527 hornet mags are specific to the hornet family I believe. It SHOULD have a filler atnthe back limiting how much room there is up front. And yeah hornets use fairly short light bullets.

Two things-
1) Check the extractor. If the extractor doesn't hold the case firmly against the bolt face, the ejector cannot do its job
2) If the rifle has a fixed ejector, the bolt must be worked vigorously. If worked slowly, the case will just dribble of the bolt and fall in the action

3) Is the ejector the right length? If it's too short, ejection will be weak

Have you tried removing the ejector assembly and checking it for gummy lube or burrs that might impede or slow function? Is the slot on the bolt likewise clear and free of burrs?

If anything about the extractor or ejector assembly looks wonky, spares are still available and relatively cheap from CZ USA:

https://shop.cz-usa.com/ejector-5275220028001.html
https://shop.cz-usa.com/ejector-spring-5275220029001.html
https://shop.cz-usa.com/extractor-22-hornet-527522005000201.html

MistWolf said:

Two things-
1) Check the extractor. If the extractor doesn't hold the case firmly against the bolt face, the ejector cannot do its job
2) If the rifle has a fixed ejector, the bolt must be worked vigorously. If worked slowly, the case will just dribble of the bolt and fall in the action

Click to expand...

^^^ This

Since the 527 is a controlled feed design (like any Mauser) the extractor claw should be fairly stiff. If it springs too much or really at all, it can effect ejection. Here's a video that shows how to disassemble and reassemble the bolt. You can ignore the rest of the video for your purposes. The important part is making sure the bolt is assembled correctly. The extractor may be defective, or never been assembled right from the factory.

You're welcome so far...

I get what you're describing. "Ejector" is the right term for the blade-like part that slips into a groove on the opposite side of the bolt face to the extractor claw. It moves in under the cartridge rim as you pull the bolt back.

It's possible that the ejector is too short and thus fails to push the spent cartridge out before the bolt is too far back. It's also possible that there is some defect like a spur or blockage that is preventing the Ejector from moving all the way into the slot on the bolt.

The spring that moves the ejector into the slot is under very light tension, but it's possible yours is too light.

The ejection system works flawlessly on my 7.62x39 527. Even if pulling the bolt back slowly. Spent cartridges fly pretty far (almost too far).

I'm certain your problem is fixable, even if it takes a replacement part or two.

I couldn't find a video with a close-up view of the 527 in particular, but I found several others showing rifles with the Mauser-type controlled feed and ejection system where you can see the parts and how they work. The 527 is a Micro Mauser design, but it works the same as any controlled feed Mauser design.

Here's a great animated video showing how a classic Mauser, the German Karabiner 98k functions. Pay especially close attention to the demonstration of the ejection process from about 1:52 to 2:15.

Hope that helps.

If your gun sat for a long period, it might have surface rust in the chamber. Examine a piece of fired brass, if any frosted look anywhere on the brass, run a bronze brush in the chamber on a slow drill with some solvent

Bullets; the regular Hornet twist 1-16 does not do heavy bullets, 40 RN (the Hornet bullet) and 35 JHP pretty much it. My Hornet loves the 35 Bergers and 4227.

Keep us posted on how it gets resolved. I'm interested on how this turns out...