CZ 457 AT-ONE YoDave Trigger Install less than 1lb.

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Show install of Yodave Products Trigger Spring to achieve less than 1 pound trigger pull.
If you do not have one I suggest purchasing the 3/32 Pin Punch, this should help with the installation.
CZ Video - I did not realize this existed
• CZ 457 trigger settings
Rings:
Vortex Optics Pro Picatinny-Style Rings Matte
www.midwayusa.com/product/102...
Scope:
Argos BTR 10-40X56
www.portabletarget.com/store/...
athlonoptics.com/product/argo... the dot I mention in the video, when I am looking at the dot in the radical and the dot on the target, everything else seems to disappear.
Wheeler Trigger gauge:
Wheeler Professional Digital Trigger Pull Gauge
www.midwayusa.com/product/101...

[@bobbythompson3544]

I could cry at this display!

[@AimSmallMissSmall_TV]

I was crying :), I learned a lot and my second attempt on my CZ457 VPT was I'd say perfect.

[@vincentmolle4009]

You got it done and it even works. I learned a few things along the way. Thanks

[@AimSmallMissSmall_TV]

Thanks, exactly.

[@nelsonm5032]

great vid. i just put a yo-dave in my 457, adjusted it to 16 oz. adjusted the pre and over travel to nil. can’t wait to go to the range in the morning! cheers

[@AimSmallMissSmall_TV]

Very nice, I hope your shooting experience is nicer now.

[@nelsonm5032]

i did brother, thanks! lots .3’s and point .4’s. ended up at 13 oz! very nice, cheers

[@garybalasa3158]

Take the magazine well off, you can actually see the spring and makes life a whole lot easier, I must say being a gunsmith for near on 40 years this segment was great and demonstrated why we gunsmiths do a 4 year apprenticeship, you are dead lucky not to have cracked or broken the alluminium trigger housing by the use of that oversized punch, this was a great video of what and how not to do this job and all because people want to save $50 which is what i charge to swap and set new springs, trust me the way you went about doing this job, you got off very lucky.

[@AimSmallMissSmall_TV]

Agreed thanks for the feedback.

[@skotrod]

Cross-thread is the tightest thread!

[@capomand45]

The trigger pivot pin went back in easy because you oversized the hole with the incorrect punch.

[@AimSmallMissSmall_TV]

excellent point that makes since, thanks

[@wowguy3562]

Mine did not go in easily, I put in a YoDave trigger spring this morning. I found the trigger pin extremely hard to push out, I bent a cheap 3/32" punch and had to use my hardened steel punch to remove the pin, I used the delrin plastic block provided in the kit and a piece of 1x2 wood to support the barrel/trigger. inspecting the pin before trying to reinstall, the pin was slightly mushroomed on both ends, I cleaned up one end only on the pin. I used a polishing wheel on a bench grinder and light sandpaper to "slowly" remove the burr on one end of the trigger retaining pin, when I got the pin to where it would slide fairly easily thru the trigger I went back and installed the trigger/ spring no problem, don't get a bigger hammer, take a few minutes and the reassembly will go smoothly

[@fn3048]

@@wowguy3562 Yep. I actually spun mine in a drill against a diamond file. After reinsertion, I applied clear nail polish over the head to help stop it moving out, but have seen some use sticky dots also, or replace the pin with a split ring retainer type.

[@wvantiques1611]

Glad you got the pull weight where you like it. I did have to shorten the pre-travel adjustment after I installed the trigger spring on the two 457 rifles I’ve done. But my personal preference on a bench rest gun is zero creep.

[@AimSmallMissSmall_TV]

I may do the same. I shot this morning to try out the trigger before a competition on Saturday. IO shot Eley Target and Eley Subsonic Hollow. I was very Impressed with the results with the Eley Target on the 5 round groups, The ARA target did not do so well but I think that is me and my need to improve how I hold my rifle. I hope to post the video tonight, getting ready to start editing it now.

[@wvantiques1611]

@@AimSmallMissSmall_TV glad you are enjoying the rifle. Thankfully the 457 seems to shoot a lot of different good ammo well. It’s difficult to be ammo picky with the state the industry is currently in. I seem to do best with Lapua and SK ammo in the 457’s. I’m enjoying your videos 👍🏻.

[@AimSmallMissSmall_TV]

I am just about ready to post the next ammo testing video. Wait till you see the groups for the Eley Target. Also SK Pistol Match Special did very well as it has for about 12 groups now but don't have the measurements on the SK group.

[@stephenmullen7486]

Hey Bubba, Watch This! This has to be a 'Do Not Do it This way' video. By showing almost every possible wrong thing to do and everything that might go wrong, you might have created one of the best instructional video's for a CZ 457 DIY trigger upgrade for beginners. Made me glad I had invested in some basic Wheeler and Weaver gunsmithing tool sets. Pin out first effort. Tested the two common Mcmaster sourced springs before settling on the slightly heavier one. Just not ready for sub-pound pulls, yet. Thanks for having the courage to share!

[@AimSmallMissSmall_TV]

Thanks for understanding the idea of publishing my failure, curious what spring you ended up using.

[@rudedawg5087]

Thanks, you just persuaded me to buy a Tikka T1x, lol.

[@AimSmallMissSmall_TV]

I love the Tikka, the stock trigger is unbeatable.

[@montelinn5897]

Good video on what not to do

[@AimSmallMissSmall_TV]

Yes

[@wowguy3562]

I bought a CZ 457 MTR recently, I ordered the YoDave trigger spring but wanted to shoot the rifle first. I had the rifle hitting my 16" gong @ 300 yards on the first magazine, shot 3-5 were on target, it was amazing, I have an Area419 30 moa scope base and dialed 10 extra moa on my scope, the first shot landed low right about 12" off plate. The stock trigger felt really nice. I was lucky, my local gun store still had a stock 457 in stock this morning, I installed the YoDave lighter trigger spring this morning and took my gun into the gun shop to compare the stock vs modified trigger pull. The stock 457 pulled an amazing 1lb 2oz on up to 1lb 6oz. My modified trigger pulled in the 8 oz range on average, never coming close to a pound trigger pull. I am looking forward to stretching out the cz a little bit further, I would like to put a coldshot 150 moa base and try 500-600 yards.

[@AimSmallMissSmall_TV]

wow, 8oz. is light. Maybe close to too light for this type of rifle. Be safe have fun with your new CZ.

[@wowguy3562]

@@AimSmallMissSmall_TV I hear you, I will bump test and always keep the muzzle pointed down range when I close the bolt. I think safety too, thanks and have a nice day

[@metalifann42]

This should be called "Competent gunsmithing" 101

[@AimSmallMissSmall_TV]

or maybe "incompetent" .001 :)

[@brianhagerty9324]

I know you’re a good shooter and today I now know you’re NOT a gunsmith.

[@AimSmallMissSmall_TV]

I am getting better at the gun smithing side. We all have to start somewhere. I am learning that is for sure.

[@ianklauss4235]

OMFG!

[@johnstewart8849]

I put Timney trigger into my Ruger Precision Rimfire...8oz uptake, 8oz break. Neighbor came over, and promptly sent a round into the house siding. They set them high for safety////don’t put your finger into the trigger well, until you’re ready to shoot. Not everybody got the memo.

[@AimSmallMissSmall_TV]

yes, it is very important to first of all do not put the figure on the trigger until you are ready to destroy something. Even with experienced shooters I let them know ot be careful of the trigger I think most folks did not get the memo of extremely light tiggers and 8 oz. is extremely light. I am hoping at some point Timmey will make a trigger for the 457.

[@wowguy3562]

I got an 8 oz trigger using the YoDave 457 trigger spring, was surprised when the stock trigger broke at 1lb 2oz. I agree with you, I always safety check any weapon before I hand it to someone, and if first thing they put their finger inside the trigger guard, I take the gun back, its kinda my test to see if someone knows gun safety

[@TimBiagi]

@@wowguy3562 and just as important, always check them when you get one from someone else

[@wowguy3562]

@@TimBiagi I always treat every gun as if it is loaded, great call on safety checking any gun handed to you

[@nopro5433]

Thanks great job I’m on it👍🏻 And Cool I already have the tools lol.👍🏻 May of helped W/a little pre oil.Reminds me of some sights Iv Removed and that feeling up the back of your neck Am I Fn This thing up🫨

[@jack1087]

Why didn't you pull the magazine housing in order to get your fingers on the trigger set screw. Especially when you put it back in?

[@AimSmallMissSmall_TV]

Now you tell me:), hopefully other will have this advantage of your suggestion. Thanks Micheal

[@Bondo1970]

why not pay a gun smith to do it correctly? cant cost much

[@AimSmallMissSmall_TV]

Can't learn that way. I do understand the advice though. Please see second attempt, I think it worked out well. kzbin.info/www/bejne/fqSVq5WEptaUn9k

[@capomand45]

Put some Kroil around the trigger pin let it soak overnight. Chuck up the pin in your drill and put a slight smooth taper to the very edge of the pin. Never use a soft face hammer on a metal punch, avoid woodworking tools like claw hammers.

[@AimSmallMissSmall_TV]

thanks for the advice. I'll try it out. I have another CZ 457 ordered and plan on installing an YoDave spring in it. I am not 100% sure understand how to use a drill chuck to put a slight smooth taper on the pin. Your feedback is awesome.

[@michaeledwards6609]

A spot on comment. As stated the trigger pin in your drill needs a short length taper so use some 220-400 grit sandpaper and spin via your drill in this medium with lube. Don't overdue it. Trial and error using the trigger and trigger housing to just easily let the pin slide in the first hole and trigger.

[@PrincipleCaliber]

I really like your video quality, and camera angles; thanks for the tutorial. If I may; it was a bit hard to follow the video. Maybe a tad bit more concise on the edits. There was a lot of filler/empty informational dialogue.

[@AimSmallMissSmall_TV]

Thanks for the comment, complement and suggestion. Please see newer Yodave Spring video. kzbin.info/www/bejne/fqSVq5WEptaUn9k

[@2226robin]

The first tool needs before to work on the firearm is “ TWO sets of gunsmith punches”, a punch set AND “a roll pin punch set”.

[@AimSmallMissSmall_TV]

This is great info, any change you can recommend brand and sku if possible? Thanks a bunch.

[@ralphross536]

You should replace the trigger now that you ruened it.

[@AimSmallMissSmall_TV]

I did, please check out the video. I love the new Timney trigger. kzbin.info/www/bejne/jH7bmXSgbqege6c

[@littlevillagepythons9636]

I was waiting for the punch to snap off in the hole lol

[@AimSmallMissSmall_TV]

I hear you, I am happy with the end result of the lighter trigger. Thanks for the comment.

[@wowguy3562]

my cheap punch bent this morning, I was using the corect 3/32" but it was soft steel, I ended up using my hardened steel punch

[@AimSmallMissSmall_TV]

I had a comment that suggested soaking the pin in kroll oil the night before, I did when I installed the YoDave spring on my Varment Trainer CZ maybe it did help see video. kzbin.info/www/bejne/fqSVq5WEptaUn9k

[@wowguy3562]

@@AimSmallMissSmall_TV Kroil is good but my trigger pin had a burr on both ends, I left one end alone and carefully smoothed on end to it would go thru the trigger fairly easily, I doubt I could have put the pin back in without reshaping it a bit

[@juanruns2138]

You can't imagine what I'm suffering from seeing those blows on the rifle. Why didn't you remove the entire trigger mechanism before you hit it? Apart from all of the above, I really enjoy your videos.

[@AimSmallMissSmall_TV]

Hum, good question. Remove the trigger may have been a good idea. I made it through the experience and the rifle shoots extremely well.

[@rally9854]

took mine first time did not touch trigger i have 36x44 tasco on it so i had litle hard time on 25 to sight it. also installed 30 moa 419 rail and weaver scope rings and nob from 419. went 100 yards after scope was dial down all the way at 25 so after first shot at 100 i didknow to adjust up like 25 cliks was hitting less than half inch group sk + yellow box 5 shots from back and shoulder waiting on bravo stock and bipod .and yes its 24 inch barrel 457 cz looks perfect so far .

[@AimSmallMissSmall_TV]

I'll have to try shooting at 100 yards some day. Since I compete at 50 yards I am trying to master my skill at 50 yards. Thanks for the detailed comment.

[@wowguy3562]

I have a cz 455 varmint and a cz 457 MTR, the 455 has a fixed weaver t-36 power scope and the 457 has a vortex diamondback 6-24x50 scope. The 457 MTR was brand new, and first magazine thru the rifle was at my 16" gong at 300 yards, I have an area419 30 moa base too, I dialed an extra 10 moa on scope and was less than a foot off plate @300yrds. Shot #2 was about 4" off plate, shot 3, 4 and 5 were on target, honestly id be lucky to be 12" off sighting in at 50 yards much less 300. Needless to say I had the best day ever shooting my 22's. The other guys were shooting 5.56 on up and they all had a blast hitting steel and hearing the dings using both my CZ 22lr.

[@wrxs1781]

Wrong punch size, you stripped the adjustment set screw. Your trigger pin will eventually fall out from the elongated hole.

[@AimSmallMissSmall_TV]

Yes, I did a lot wrong hopefully others will learn from my mistakes. I'll have another chance here shortly with my next CZ, 457 Varmint Precision Trainer Camo rifle. I have gotten a lot of good feedback in addition to your comment. Thanks very much - Bret

[@wowguy3562]

You are saying it is a metric sized punch? I did bend my cheap 3/32" punch today and but my hardened steel punch did the job

[@jaypeemagno7044]

👍👌🍻🍻🍻🍻🍻🍻

[@AimSmallMissSmall_TV]

Thanks...

[@karencollins9363]

I think that I would have removed the trigger from the receiver, done the replacement spring and reinstalled the trigger.

[@AimSmallMissSmall_TV]

not a bad idea for use. It is easy enough to remove.

[@bobkmac]

Full stop sir... Please. You need MANY more hours working on kids toys before working on firearms.

[@AimSmallMissSmall_TV]

lol, yes I know. I have to learn some way and don't have a mentor and good gunsmiths are hard to come by. In fact I have a gunsmith working on a rifle right now but I have to pick what I should attempt and I need a pro to do. I would by the way like to know what are good tools to use, if you can shed some light I'd be grateful. There are too many less than great quality tools out their but I assure you I buy them when I find them. - Thanks for your comment and time, Bret

[@bobkmac]

@@AimSmallMissSmall_TV I'm glad to see you didn't take offense and jump to being defensive. Two points; first it appears you could use a little more general mechanic experience. Simple things like hammering on the backside of an allen wrench, then using a screw driver and nail as punch are things that you should better than to do before wrenching on a firearm. I understand that you finally moved on to an actual punch but working on firearms is much too dangerous and costly (I almost cried when you ball pen hammer almost glanced off of the allen and hit your receiver or scope) if you don't already have at least a moderate level of experience. With general mechanic experience you would have also known that the hole in the trigger was to small for the punch that got wedged. As soon as saw some resistance you would have known to find the right size punch or modified the punch to work correctly. Second, as you mentioned, get the right tools. Use leather or plastic mallet when hammering on the punches or at least a smaller ball pen hammer. Get some decent punches. Visit Brownell's, they have quality tools in my experience.

[@AimSmallMissSmall_TV]

Okay I know hammering on the back of an allen wrench was a bad idea but I had no idea how tight that pin was going to be. Definitely a lesson learned. I'll check out Brownell's. I will say my list of standard tools for gun owners is increasing. Maybe one day I'll have the tools I need and will do a video on tool and light gun smithing or something. Don't be alarmed when I refer to me doing gunsmithing but I can think of a better description right this moment. Thanks again I enjoyed your feedback and I take it as encouragement believe it or not.

[@omegaseamaster1550]

Says the anonymous guy ob the internet.....

[@rally9854]

and those holes are metric so you can use lighly mod bunch use grainder wheel with white tool stone and polish after .least u try and show what not to do thanks rally

[@AimSmallMissSmall_TV]

Not sure I understand.

[@shaunharris3690]

Bloody hell I fell sleep watching it😭😪

[@belzebuth6651]

So funny

[@AimSmallMissSmall_TV]

thanks, not at the time for me. I did learn a lot.

[@johnstewart8849]

That extra pin that showed up on your mat: I suspect you found the pin that holds the magazine spacer in the mag well. Nobody talks about it in taking the stock off, but it’s real.

[@AimSmallMissSmall_TV]

I did figure out that the pin holds the magazine spacer in the mag well, I thought I mentioned it in the video. I do try and share all of the little discovers and pain in the video because I agree a lot of times when folks do KZbin video details seemed to get left out. Being a KZbin creator I get that there is a lot to remember and it is very easy to forget stuff, so my video may run long but hopefully they are helpful. I also get great folks that comment and help fill in the blanks. Thanks for the comment.

[@johnstewart8849]

@@AimSmallMissSmall_TV Discovered another gotcha: the bolt release button (to remove the bolt) is held in by an axle-pin, and carries a small spring in a socket. If that pin falls out, as mine did, the release rocker button goes missing, not to mention the tiny spring. I used the YoDave trick of filling the spring socket with white grease. The replacement rocker is $15 at CZ. I’ll let you know if any other parts fall out.J

[@glennnewell8786]

You adjust the creep out.

[@AimSmallMissSmall_TV]

agreed.

[@robertfrassetti8858]

You should title this video "How not to install a Yo Dave trigger kit"

[@AimSmallMissSmall_TV]

Good point but I wanted to show the good and bad, to often videos make things look easier then they are.

[@claudeBgf]

J'ai déjà vu des nuls en bricolage, mais là on est dans le best of.

[@AimSmallMissSmall_TV]

Thanks

[@mrawesomeness8558]

-Wow im proud this is US made tools! First wack and it breaks... Lmfao! 😂😂

[@AimSmallMissSmall_TV]

well, that was a bummer for sure.

[@wowguy3562]

I bent my cheap auto parts store 3/32" punch trying to drive out my trigger pin. I have a hardened steel quality punch and it worked flawlessly. I did get maybe 5 uses out of the cheap punch before it failed

[@user-cp2xo7fm2i]

That pen went in cause walleyes out the hole

[@AimSmallMissSmall_TV]

Thanks for your comment

[@danlin2659]

It is a roll pin, so you need a roll pin punch

[@AimSmallMissSmall_TV]

Thanks for the clearity, amazing having the right tools makes a big difference and of course knowing how to use the tools is equally imported.

[@takedeadaim8671]

You permanently damaged the trigger and housing by beating an oversized punch through the whole assembly. That pin is 3/32”, if you don’t know watch one of a dozen videos. If that pin is loose the trigger will be able to move around and the loose pin may fall out.

[@AimSmallMissSmall_TV]

I got lucky and now own much better tools, thanks

[@ipscfreak037]

If, as can be seen here, you have no idea about the matter, it would be advisable to leave such work to a professional gunsmith!

[@AimSmallMissSmall_TV]

I understand but you have to start somewhere, my goal was to show my journey and I never said I know what I was doing and I think folks would learn from my victories and my failures.

[@ipscfreak037]

Thanks for your insight! It's nice that they have this view and are not upset. Have fun and happiness

[@OhshitPositive]

Install starts 10 minutes in.

[@AimSmallMissSmall_TV]

Are you saying too much talking? I'll work on it and I also understand.

[@OhshitPositive]

@@AimSmallMissSmall_TV No, not at all. Just leaving that as a reference for future viewers who came to see the actual install.

[@AimSmallMissSmall_TV]

oh, that is very nice of you, thanks for doing that. I do plan on adding chapters on future videos and will probably go back and add them to previous videos as well. Thanks again I love it when we help each other. - Bret

[@snowgw22]

Please take it to a professional...

[@AimSmallMissSmall_TV]

But if I do that I won't learn. Please continue to watch I have a New CZ 457 Varmint Precision Trainer Camo and plan on installing the trigger spring tonight. - Thanks for the comment.

[@kailindenthal2449]

Der ist so Doof wenn man keine Ahnung hat sollte man es lassen!!!

[@snowgw22]

too much travel in the trigger adjustment

[@AimSmallMissSmall_TV]

I'll adjust that, you are correct. Thanks for the comment. -Bret

[@tuchang6929]

Made in "usa" broke after two hit 🤣🤣 it does matter where it was made but depend on what kind of product lol

[@AimSmallMissSmall_TV]

For sure… Good to know, I have purchased a second Timney tigger with the intention of installing it in my CZ457 VPT, we’ll see. Thank maybe I’ll more aggressive on that rifle. I will say I have shot over 500 round with the Timney in the AT-ONE and it performed flawlessly,

[@AimSmallMissSmall_TV]

Sorry previous comment was meant for a different video.

[@enriqueruedas1798]

😂😂😂😭😭😭😭

[@gwcracker]

Is this a joke?

[@AimSmallMissSmall_TV]

Not joke just a painful and useful lesson. With a little luck folks got the point to use the right tool for the job. I have successfully installed many more no issues and for excellent tool for the job.

[@pwn3426]

well at least it wasnt a nightforce up top. I cringed all the way thru this vid man.... I bet you that trigger is sloppy as hell after reinstalled.

[@AimSmallMissSmall_TV]

Actually the trigger is nice. It was a painful install and I shared the pain so other will hopefully avoid my failures. Thanks for the comment.

[@michaelgreer9440]

This was painful to watch.

[@AimSmallMissSmall_TV]

It was painful to do but I did it and learn a few lesions along the way. My second video installing the YoDave spring on a CZ457VPT went very well. Thanks for the comment

[@jonleone777]

Perhaps gunsmithing is not you calling. You ruined that pin hole.

[@AimSmallMissSmall_TV]

Agreed

[@googleeyeseyes4033]

Painful.😣😩

[@rally9854]

please get proper tools. i am crying to see this, i dont care if its pob gun this is not cool please but warnings on video .

[@AimSmallMissSmall_TV]

Thanks for the comment, I hope my challenges lead other to be better prepared.

[@charliegibson8826]

The title should read how not to install a yo Dave trigger spring. You butchered that job really well

[@AimSmallMissSmall_TV]

You have a valid point but I did learn from my mistakes and hopefully folks will not repeat my mistakes.

[@ac-6569]

Use a bigger hammer, just kidding, please get some quality harden punches. You stretched the hole to be larger by using the wrong sized tool. To be honest, this was painful to watch knowing what an awesome rifle the 457 is. Never force parts or tools, you will make a mess of things.

[@AimSmallMissSmall_TV]

I did get some new punches and they are GREAT and I feel like a pro now. Thanks and good advise.

[@bhalabi6676]

This is painful to watch.

[@danritter8449]

Why would you post a video lacking so much craftsmanship. Just dont post until its right!

[@AimSmallMissSmall_TV]

Good question, I show the good, bad and ugly. Hoping folks could learn what to do and what not to do. The Spring for installed and had been working beautifully,