CZ 457

littlepod

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Took my buddies brand new cz 457 out today.

Nothing but issues extracting, cci standard, cci subsonic...

What could be the issue?

Seemed to be really tight chamber as well...



CZ 457 with Nightforce ATACR 5-25 x 56
Tight match chamber, and CCI stuff is a little thicker. Will take a few hundred rounds to break in.
 

acudaowner

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have not had the chance to try out mine yet can hardly wait to do so .
 

MDrimfirerookie

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Took my buddies brand new cz 457 out today.

Nothing but issues extracting, cci standard, cci subsonic...

What could be the issue?

Seemed to be really tight chamber as well...



CZ 457 with Nightforce ATACR 5-25 x 56
i would say ammo selection. try something eley or sk. i have at least 1500 rounds through mine and not one issue.

of course i just jinxed it
 

AirGunShawn

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Sounds good. I sent you the info you were looking for.

Also here are some pics.
Hi South Fl...... whos check pad do you have? Im not going for height so much as trying to keep my sweat and salt off of the stock. I sweat so much that I raise the grain.
 

AirGunShawn

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Took my buddies brand new cz 457 out today.

Nothing but issues extracting, cci standard, cci subsonic...

What could be the issue?

Seemed to be really tight chamber as well...



CZ 457 with Nightforce ATACR 5-25 x 56
My CZ MTR has only had issues with WOLF ammo. For that mater my Vudoo doesn't care for it either. If your buddies CZ is an MTR than it has a match chamber. It is stamped on the left side of the bbl. I have run thousands of rounds of SK rifle match (red box) thru my MTR and that ammo runs great. It is 65.00$ a brick from Target Sports USA.
 

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AirGunShawn

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CZ 457 trigger spring.
For those of you wondering, the stock spring is .148 OD x .35 long and has a wire diameter of .028"
If you go to McMaster-Carr and do a search for 9657K612, ( .148 x .375long x .018 wire diameter ) you will find the spring that is for sale from Yo-Dave.
If you want a softer spring you can use 9657K611 ( .148 x.375 long x .014 wire diameter. ) It has a spring rate of one half of the K612. They both cost 5.33$ per dozen.
Please lets keep in mind that I target shoot and don't throw my guns around. I do however believe in a good amount of sear engagement.
 

SouthFLShootin

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JMcBurn

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CZ 457 trigger spring.
For those of you wondering, the stock spring is .148 OD x .35 long and has a wire diameter of .028"
If you go to McMaster-Carr and do a search for 9657K612, ( .148 x .375long x .018 wire diameter ) you will find the spring that is for sale from Yo-Dave.
If you want a softer spring you can use 9657K611 ( .148 x.375 long x .014 wire diameter. ) It has a spring rate of one half of the K612. They both cost 5.33$ per dozen.
Please lets keep in mind that I target shoot and don't throw my guns around. I do however believe in a good amount of sear engagement.

You think there is is room for a 0.156" diameter spring/have you bought a dozen of them from mcmaster already?
 

AirGunShawn

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You think there is is room for a 0.156" diameter spring/have you bought a dozen of them from mcmaster already?
The spring goes into a spring pocket and I did not measure that diameter. im going to order both spring types tonight.
If you get me your address, I will send you some springs, 3 and 9 micron AO lapping film for free.
 

AirGunShawn

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So I got my new CZ 457 Royal a few days ago and this is my first impression. For better over all photos, see the sales ligature.
The first thing that I noticed is how svelte the rifle is. Mine has a 20.5"bbl. even though the ligature says it comes in 16" & 22".
The next thing I saw was the very attractive machined sling swivels. My concern was that they would not attach to a bi-pod and I did not want to be stuck using a bag. Third was the bbl. thread protector. It is bigger than the bbl. I would have preferred it to be flush. The bbl. is also threaded in 1/2-20 and not 1/2-28 like all of my other guns. the diameter of the bbl. at the muzzle is .55". The Royal is not advertised as having a Match chamber but that does not seem to cause any issues.
even with the fancy sling swivels, a Harris bi-pod clamps up and wont interfere with the wood stock even at it's maximum tilt as shown in photo no. seven.
She was about 850.00 so given a choice between the Royal and the MTR, I would get the MTR.

Shawn
 

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AirGunShawn

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CZ 457 spring replacement.....
I just drove the pin out of my CZ Royal. It has a diameter of .1175 at the center and is a couple of thousandths larger on it's ends so it has an hourglass shape to it. It appears as though they staked the pin in place to retain it without adding cost.
To keep it simple enough for anyone to do this change out, I used the simplest of tools. I chucked up the pin in my drill and reduced the diameter just a hair with some 400 wet / dry sand paper. You don't need any kind of measuring tools to do this.
As soon as the pin glides through the trigger blade, your done. less than 10 minutes.
I affixed some 3 and 9 micron lapping film onto a flat surface as shown in photo 3. Also in photo 3 you can see that the trigger will stand on the sear surface all on it's own. All you need do is to use lite to medium pressure on the sear surface to lap off the very slight irregularities. Photo 4 shows that the factory sear surface has a hollow on it. The sear surface is nearly a quarter inch square and will stay that way if you take your time. It will take over an hour.
For reassembly, there is a spring pocket in the trigger blade, If you have any type of heavy grease, ( today I used silicon plumbing grease from Lowes. ) you can put it in the pocket to retain the new spring while you put the blade back in place. You can use any kind of grease because it is not being used as a lubricant but as an assembly aid. Before you put the blade back in place, put some lube on the trigger sear. I use MOS2 ( Moly ) Your smaller pin will slide in with ease now. And now all you need do is test your trigger and retain the pin. For this demo, I used a prick punch to stake the pin in place. It only takes a very lite strike to create the dimple adjacent to the pin. An option is fingernail polish. You will also want to adjust your trigger and that will require that you remove the magazine well. This would be a good time to replace the plastic mag release
with an aluminum release from D.I.P.
BTW.... the last photo shows what the trigger sear should look like in an ideal world. You only need to lap the one sear surface and not the trigger bar sear.

EDIT.... Be aware of the recoil block falling out when you have the action out of the stock. You can put some heavy grease in the recoil lug pocket to keep it in place too. It's easy to have the gun on your knees and lift the stock and have the lug fall onto the carpet.

Lots of luck
Shawn
 

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AirGunShawn

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Just some cleaning FYI that I use on my .22 lr...... I like to use Hoppes .243 / .25 caliber brushes. I also use .270 pro-shot patches.
And I have Possum Hollow bore guides for nearly all of my rifles. It allows me to do a much better job much faster.
I had sent my Vudoo in for an accuracy issue and they told me that it was mostly a carbon ring buildup. That said, I decided to revisit my cleaning procedure. I'm also testing a bunch of carbon removing cleaners.
Anybody have any suggestions about a nice bore scope??
 

AirGunShawn

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You think there is is room for a 0.156" diameter spring/have you bought a dozen of them from mcmaster already?
I just wrote up a quick post about what needs to be done. Here is a sketch that Lefty 222 did some months back. Item 49 is backwards. In is LESS engagement.
 

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gunjunkie45

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Has anyone here done any altering to your MTR stock to make length of pull longer? I love the stock but it's a bit too short for me to get comfortable behind shooting prone.
 

SouthFLShootin

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I just did a match with my MTR today and I will say that I'm probably going to either put it in a new chassis or build something new and leave this how it is.

Like mentioned before, it's a little short when shooting prone and it's too pretty to be jamming into 2x4's and railings ect... The gun performed very well and we shot out to 316 yards. Most of everything was between 50-160 yards. Very impressed by the performance compared to guns costing three times as much.
 
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OneBill

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Dead set on this beautiful rifle. Up until 4 days ago... Now I’m trying to decide this or the new Bergara?
 

flatland1

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I took my Shilen-barreled 457 American to a friend's place last Friday, where there was a small gathering of prone shooters getting some practice in at 600yds on the friend's Silver Mountain electronic target system in preparation for our State 4x600 Prone Champs matches on Saturday. We were dinking around on the side while waiting on our turn to shoot at 600, so I brought out the 457 American to show friends who hadn't seen it, nor for that matter, any of the new 457s. Everyone who dry-fired it was impressed with the clean 1-1/4lb trigger break, the quality appearance of the 457 action & trigger guard, and how the rifle balanced with the slightly heavier Shilen that I'd finished at 23". All the shooting we did with it was offhand, and one friend who has an Anschutz 1712 .22 silhouette rifle commented on how impressed he was with the reliable feeding/extraction/ejection, as well as the trigger, and how easy it was to hit a 4" swinger with it at 100+yds with a decent lot of SK Std+. This friend is an authority on offhand shooting, having won the civilian offhand aggregate at Camp Perry during the last year that the NRA held the Hi Power Nationals there. He liked the head position afforded by the BScar 25 MOA rail with a 6-24x50 Midas TAC mounted in TPS TSR low rings. The American's stock also drew some positive comments on both shape & appearance, as mine has some attractive grain. All things considered, I was glad that I'd taken it along to show & share.
 

SouthFLShootin

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Been thinking a lot about this lately...So, I love my MTR, it just doesn't have a good place of use for me right now. It is great off a bench or showing off to your buddies on a range trip. Amazing accuracy, shoots like a dream but it does have its shortcomings.

I have gotten to the point where I only really shoot a couple of my guns, and of the guns I shoot, I tend to beat them up a little bit and abuse them. With the popularity of NRL22 and PRS22 style matches growing and being held more frequently, I want something more tailored to that style of shooting. I also want something that will more closely replicate the function and operations of my 6.5CM that I shoot as well. Same mag, same chassis, same trigger, same bolt, same scope.....

That being said, I am probably going to go to a Vudoo or Bergara style gun and sell the MTR.
I could put the 457 in a new chassis, but it will still never be a Vudoo or Bergara.. Not because of accuracy, performance, looks or cool factor though. I only need one bolt action 22. I still have a hard time justifying that kind of money for a 22 rifle when my MTR shoots just as well. The only person who shot better than me at the last match had a Vudoo, but I don't think the gun was really what made the difference.

That is what I would think about before buying a 457... Do you want a great shooting 22, super accurate with great looking stocks available, or do you want more of a training tool for shooting matches with that will crossover well to your center fire rifle. Let's hope CZ sees what is going on in the market and steps up to the plate. I think they could knock it out of the park if they tried.
 

Kisssofdeath

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Accuracy comparison?

It's like double the price of the CZ 457...
I don't know anything about Bergera accuracy. I did have a 457 Varmint and it shot ok, not on par with my Tikka's but ok. Never owned nor will own a 455. But I do have 5 BRNO's and 4 452's, a CZ 75 SP-01 Shadow, 75 Tactical Sport, a Dan Wesson Valkyrie in 45ACP and Silverback in 10mm so I am a huge CZ fan and not a basher.

My comment was based on my needs/wants and the fact that the Bergera is Remington 700 platform based. It was not my intentions to throw the 457 down, I like the 457, I think they are smooth operating and the best rimfire rifle CZ has ever made. IMO the 455 was a huge step backward in comparison to the 452/453 but the 457 is ahead of both.
 
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Rlandry

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CZ 457 trigger spring.
For those of you wondering, the stock spring is .148 OD x .35 long and has a wire diameter of .028"
If you go to McMaster-Carr and do a search for 9657K612, ( .148 x .375long x .018 wire diameter ) you will find the spring that is for sale from Yo-Dave.
If you want a softer spring you can use 9657K611 ( .148 x.375 long x .014 wire diameter. ) It has a spring rate of one half of the K612. They both cost 5.33$ per dozen.
Please lets keep in mind that I target shoot and don't throw my guns around. I do however believe in a good amount of sear engagement.
Thanks for the info on the trigger spring. I just ordered a dozen. Don't know what I'll do with all of them.. LOL
Their price drops the per spring price tp $.44 each. That's a far cry from a $15 spring with $10 shipping. And to add to the insult, YoDave's coul have dropped it in a PO padded envelope for around 3 bucks. Now, if someone would come up with affordable replacements for Mcarbo's overpriced stuff.
I'm betting that the people who paid $25 for one of those springs are feeling a little stupid by now.
 

Jack Hart

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New guy here. Here's what I got out of the first box of GECO Match (6 cents a round) from my new CZ 457 Varmint. 50 yds from a bag.Geco1.JPG
 
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Rlandry

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What did you use to get the target photo that circles the hits and display info?
 

AirGunShawn

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Thanks for the info on the trigger spring. I just ordered a dozen. Don't know what I'll do with all of them.. LOL
Their price drops the per spring price tp $.44 each. That's a far cry from a $15 spring with $10 shipping. And to add to the insult, YoDave's coul have dropped it in a PO padded envelope for around 3 bucks. Now, if someone would come up with affordable replacements for Mcarbo's overpriced stuff.
I'm betting that the people who paid $25 for one of those springs are feeling a little stupid by now.
I just gave some springs away with some Moly, Silicon and lapping film to Justin so he could do his trigger. I got the
3 and 9 micron film from eBay. You can also get film from Woodcraft. It is AO and PSA meaning Aluminum Oxide and has
Pressure Sensitive Adhesive.

Hello Justin,
I was able to get your stuff out today. Tracking number is 9505512750339301140610.
I sent two .018" diameter wire springs and two .014" wire springs. I also sent a packet of Silicon grease to retain the spring during installation. You will be able to see how the factory used it during it's original installation. It only goes in the spring pocket in the trigger blade and is NOT meant as a lubricant of any kind but only as an assembly aid. I also included a packet of Moly grease. Use it sparingly. Just burnish it onto any surface you want to lube. If you think that you may have used too much... you have. I would just start out with the .014" diameter spring and save yourself some time. There is a small window in the side of the trigger housing that will allow you to see the sear engagement. It is critical that you keep the sear the same shape and only hone the surface. You absolutely don't want to round over the sear edge. And you only need hone the trigger blade sear. OH crap.... I just realized that I forgot your lapping film. I will send out some 3 and 9 micron PSA film Tuesday. I have gotten the lapping film from eBay, Woodcraft and Taylor Tool Works. 573-397-6432

Shawn
 
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MDrimfirerookie

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as if we all need any more avenues to spend our money, proof is now listing their CZ drop in barrels on their website as being available.

i haven't seen them listed at any of the dealers but they are listed at MSRP of $520 for the steel and $650 for the carbon fiber
 

Eoddave27

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I’ve owned a few proof barrels but I think their prices have got a little out of control for their steel barrels. They are nice barrels but not $520 nice for a rimfire barrel. I would be looking at a Lilja or Bartlein for less money.
 
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AirGunShawn

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as if we all need any more avenues to spend our money, proof is now listing their CZ drop in barrels on their website as being available.

i haven't seen them listed at any of the dealers but they are listed at MSRP of $520 for the steel and $650 for the carbon fiber
Hi Rimfire..... Six months ago I bought a CZ 457 MTR and have seen some posting about them needing a new bbl. I just don't see it. My MTR has a bbl. diameter of .860" and a CZ Royal I just bought has a muzzle dia. of .550", and to look at it, it seems too skimpy to be able to shoot well. My Vudoo has a muzzle dia. of .895". In all of my testing that I have done, I have noticed that the problems arise from two issues, my hold and my trigger finger pad placement. If I control them, my shooting is fine. When I get just a little sloppy, it shows up in larger groups. My CZ MTR is second place only to my V22 and it is not really do to an accuracy issue. My feeling is that the 457 is a really nice rifle given it's price point. As far as my shooting use, I just do relaxed steel target shooting and don't need rapid mag changes. I just shoot for the joy of it.
 

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OneBill

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as if we all need any more avenues to spend our money, proof is now listing their CZ drop in barrels on their website as being available.

i haven't seen them listed at any of the dealers but they are listed at MSRP of $520 for the steel and $650 for the carbon fiber
The MSRPs are the same as the 10/22 barrels. So if dealers have the same margin and follow the same policy, then expect street prices to be $450 and $550 respectively.
 
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WAsquirrelsniper

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So needing some scope help, went to sight everything in Sunday and have too much cant. I am .3 mils high at 50yards, I have a 35moa base would going to a 25 be enough to correct?
 

AirGunShawn

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You think there is is room for a 0.156" diameter spring/have you bought a dozen of them from mcmaster already?
Hello JmcBurn..... I hate feeling this stupid.... did I ever send you out your lapping film?
Shawn
 

Kisssofdeath

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Hello K of D..... do you own a 457? What did you shoot today. I was shooting my Annie.
Hey, I did own a 457 Varmint but sold it. I have several 452's and BRNO's "huge CZ/BRNO fan". Didn't shoot anything today but yesterday I shot my two Sako P94's, one with the Lilja 17 HM2 barrel, my Larue 5.56, the AAC 300 Blakout, and two Tikka T1x. Shot my Anschutz 1712 last week. What Anschutz are shooting?
 

AirGunShawn

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Hey, I did own a 457 Varmint but sold it. I have several 452's and BRNO's "huge CZ/BRNO fan". Didn't shoot anything today but yesterday I shot my two Sako P94's, one with the Lilja 17 HM2 barrel, my Larue 5.56, the AAC 300 Blakout, and two Tikka T1x. Shot my Anschutz 1712 last week. What Anschutz are shooting?
K of D.... I should get some new photos of these with their new scopes. I have a ATHLON CRONUS on the thumb hole.
They both have the 5098 triggers in them and come from the factory set at 180 grams. (6.38 oz.) I like the Annies ok except for the butt plates that are a hard plastic and slide around on my shoulder. I put a rubber boot on the butt to prevent that and I don't really care for the "cam cocking system" It is not fluid. The other complaint is only on the Beavertail.... it has no sling swivels to mount stuff to. And like all guns with small magazines, they are a nuisance to put in or eject. They are lite and nimble and the triggers are nice from the factory. Don't get me wrong.... no matter what you do, it is still a 457. I just happen to really like my MTR. OH.... and my Annie bbl. length is 18".
 

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AirGunShawn

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K of D.... I should get some new photos of these with their new scopes. They are both 1416 American Varmint models.
I have a ATHLON CRONUS on the thumb hole.
They both have the 5098 triggers in them and come from the factory set at 180 grams. (6.38 oz.) I like the Annies ok except for the butt plates that are a hard plastic and slide around on my shoulder. I put a rubber boot on the butt to prevent that and I don't really care for the "cam cocking system" It is not fluid un less you slap it around. The other complaint is only on the Beavertail.... it has no sling swivels to mount stuff to. And like all guns with small magazines, they are a nuisance to put in or eject. The guns are lite and nimble and the triggers are nice from the factory. Don't get me wrong your correct.... no matter what you do, it is still a 457. I just happen to really like my MTR. OH.... and my Annie bbl. length is 18".
I was looking up my Annie trigger and ran across this airgun. It is a 9015 High Power for Field Target shooting. You can get it for 5500.00$ Then you will need a 50,60 or 80 power scope to be competitive. Just buy the Vudoo and be glad your not into airguns....lol
 

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Kisssofdeath

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K of D.... I should get some new photos of these with their new scopes. I have a ATHLON CRONUS on the thumb hole.
They both have the 5098 triggers in them and come from the factory set at 180 grams. (6.38 oz.) I like the Annies ok except for the butt plates that are a hard plastic and slide around on my shoulder. I put a rubber boot on the butt to prevent that and I don't really care for the "cam cocking system" It is not fluid. The other complaint is only on the Beavertail.... it has no sling swivels to mount stuff to. And like all guns with small magazines, they are a nuisance to put in or eject. They are lite and nimble and the triggers are nice from the factory. Don't get me wrong.... no matter what you do, it is still a 457. I just happen to really like my MTR. OH.... and my Annie bbl. length is 18".
That's fantastic shooting. Which one shot the target? My comment on the 457 still being a 457 applies to anything really. My Tikka has a IBI barrel on it but if I put it up for sale I would list it as a Tikka T1x. It's all fun and games anyway. Another way for people to spend their money for pleasure in return.
 

AirGunShawn

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That's fantastic shooting. Which one shot the target? My comment on the 457 still being a 457 applies to anything really. My Tikka has a IBI barrel on it but if I put it up for sale I would list it as a Tikka T1x. It's all fun and games anyway. Another way for people to spend their money for pleasure in return.
K of D.... I shot that with the thumb hole, sadly it is the only one of my Annies that I shoot. I need to have some sling swivels added to the beavertail. I will put them in the same location as the thumbhole has them. I like to keep my guns a close to stock as possible. I was looking at a new stock for the beavertail. That would force me to shoot her. I just got my silencer the other day and it make the guns a real pleasure to shoot. It has a noise reduction rating (NRR) of over 40db. I only had to wait 4.5 months and that was a huge surprise. I don't compete any longer but still shoot for the pleasure of it.
 

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Kisssofdeath

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Is that target downloadable here?

Love the UTG rings, I have a set too. Just goes to show a person doesn't have to spend $100 on rings.
 
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