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CZ 455 trigger adjustment

Cproflow

King of the Shank
Full Member
Minuteman
Jan 12, 2011
336
4
Lyons, Colorado
I can't seem to find my manual around the shop (whoops), so I was wondering if anyone could assist me in how to adjust (lighten likely) the factory trigger on the 455?

Is is as simple as, remove the stock, adjust a screw left or right (left to lighten...right to tighten?).

While I don't hate the trigger per se, it could use a little tweaking I'm sure. I'd like to see what my adjustment range vs. perceived pull weight turns out to be.

I've actually been eyeballing that Timney trigger for the 455...but just don't know if it is justified yet.

Thanks all!
 
Re: CZ 455 trigger adjustment

As with most firearms, when it comes to creating tension,
the majority of it's caused by the nut behind the trigger.
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In this case it really is the nut located just above
and behind the trigger, at the bottom of the spring.
Remove the barrel and action from the stock and you will see the nut.
Rotating the nut down towards the trigger eases tension,
up towards the receiver increases tension. The CZ trigger wrench is
kept between the trigger plate and the stock, doing double duty as a spacer.


I like the CZ factory trigger. Adjust down for range use, up for hunting.
The more it's used, the smoother it's gotten.
 
Re: CZ 455 trigger adjustment

Jaia...thanks!
That is truly a clear explanation (even I can follow)
Much obliged.
 
Re: CZ 455 trigger adjustment

Timney is very nice but for 20 bucks and all the rave reviews I wish I would have at least tried the YoDave kit first.
 
Re: CZ 455 trigger adjustment

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Anchor Zero Six</div><div class="ubbcode-body">Timney is very nice but for 20 bucks and all the rave reviews I wish I would have at least tried the YoDave kit first. </div></div>

Or go with the adjustable sear from DIP, just a little more expensive than the Yo-Dave. Either one really makes the difference. I went for the sear and spring kit, and have no desire to change the trigger now.
 
Re: CZ 455 trigger adjustment

I installed the yo dave in a 452 Varmint using the second largest shim to eliminate creep and the second strongest spring. The trigger now breaks cleanly at 1 pound 10 ounces with no creep and it also passes the bump test.

I still have 2 lighter springs but I'll keep it like it is for now.

I have read that it works in the 455 as well as it has problems, and can confirm neither since I don't own one. I can say that in the 452 it makes an excellent trigger for a small cost.
 
Re: CZ 455 trigger adjustment

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DWood</div><div class="ubbcode-body">I installed the yo dave in a 452 Varmint using the second largest shim to eliminate creep and the second strongest spring. The trigger now breaks cleanly at 1 pound 10 ounces with no creep and it also passes the bump test.

I still have 2 lighter springs but I'll keep it like it is for now.

I have read that it works in the 455 as well as it has problems, and can confirm neither since I don't own one. I can say that in the 452 it makes an excellent trigger for a small cost. </div></div>

I had the yodave in my cz452 at about 2 pounds.

Im going all in, in a manner of speaking with my 455 and also went with the yodave except I went with the second to lightest trigger. It ended up breaking at a hare under a pound, about 14 ounces.

It doesn't pass the bump test very well, although with the safety on it wont fire. Also as aggressively as you can work the bolt it wont drop the hammer. I tuned it too far in one direction, lightest trigger spring and too large of shim, and it would slam fire on the bolt. So i backed off a spring and shim and now it is fine for me.

I just have to remember to keep it on safe when im walking around. (now i really wish the safety would work in reverse order) Oh well.

I also recommend polishing the sear engagement surfaces to further remove any gritty creep.

Lilja barrel install next
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