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  #16  
Old 08-04-2018, 02:30 PM
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12.5 oz. On my 455 after playing with the YoDave kit, measured with an electronic gage. Passes all safety tests.
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  #17  
Old 08-04-2018, 03:07 PM
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452 American yo dave shim, red, and second lightest spring, ran nut with washer up two full turns to 1.3 lbs
455 FS yo dave, shim, blue, and middle spring with washer and spring set low at 1.3 lbs

SE Ultra Lux, nothing 11 oz. someone played with this one, rubber hammer all three and they passed. SE UL will get increased.

as for creep the American and FS had some creep every once and a while and the shim took care of that, the SE UL has no creep at all.

hope this helps
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  #18  
Old 08-04-2018, 05:23 PM
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CZ 455, John Langley trigger at 1.5 oz.

Bob
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  #19  
Old 08-05-2018, 01:43 AM
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trigger

cz452 17 hmr shimmed with feeler gauge [poor mans] ace 144 spring 12 ounces
totally safe. cz452 american 22lr same as above with spring cut at 7 ounces. This gun passed the hammer and bolt test but is only used on the bench at a friends
farm when no one else is present.
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  #20  
Old 08-05-2018, 08:24 AM
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My lightest is a Brno#4 at 4oz next is a 455 varmint at 8oz and a 452 American at 10oz.
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  #21  
Old 08-05-2018, 09:05 AM
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CZ 452 American, John Langley modified factory trigger 7 oz. Rifle is only used for bench rest work. His 1.5 oz. bench rest trigger is on order.

Stu

Last edited by stu1ritter; 08-05-2018 at 09:06 AM. Reason: added text
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  #22  
Old 08-05-2018, 11:05 AM
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I have couple of 452's with PMTJ at 10 oz., Brno M 4 is right at 8 oz. everything else is 1-2 lbs., most closer to 1.
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  #23  
Old 08-06-2018, 11:18 AM
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Quote:
Originally Posted by armtx View Post
Both of my American's (22LR/Mach2) are around 2 1/2 pound triggers, with help of YoDave kits.
Ď
Question, because we are talking triggera. On one of my Americans, I get intermittent creep. Maybe once every 5th shot. What is causing that?
Are you saying that the trigger changes every 5th shot? Man , thatís creepy!
AKA, In my experiance , irregularity is caused by either defective parts, or improper installation or improper lubrication.

I would examine , closely , the trigger group that is doing this, and compare it to the trigger group that isnít. Also ,if possible I would swap bolts between the two and see if thatís related, easier than swapping trigger groups.

More than likely just some gun oil oozing down and gunking up the works on an intermittent basis.Clean the trigger group. I use Gun scrubber. Do not lubricate! See if creeps are gone . Lubricate. See if creeps come back.
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  #24  
Old 08-07-2018, 10:37 AM
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My two 452s are at 1.5 pounds. (.22 WMR, .17 HMR). Had my smith tweak those as I couldn’t get either below 3 by adjusting on my own. Always cautious when it comes to triggers.

On my 455 (.22 LR), was easily able to adjust the tension nut to achieve 2 pounds. No creep, excellent trigger.
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  #25  
Old 08-07-2018, 10:08 PM
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452 sporter with shortened spring and filed & polished sear: 16oz.
455 varmint with shortened spring and polished sear: 12oz.
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  #26  
Old 08-08-2018, 07:03 PM
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dropped in a M Carbo CZ 455 spring, trigger breaks at 1.5 lbs...light enough for me for informal bench rest shooting (me vs me). I reinstall stock spring and set at 2.5 lbs for ground squirrel hunting.
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  #27  
Old 08-08-2018, 09:07 PM
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My lightest is 20 oz, typically I have them at 2 lbs.
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  #28  
Old 08-09-2018, 08:40 PM
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Got my 452 down to 3oz ~90grams
Stock trigger with light spring and shim supplied with Yo Dave kit. Polished the sear and trigger with super fine grade valve grinding paste and lubricated with silicone grease.
Very reliable and has never failed to cock.
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  #29  
Old 08-10-2018, 05:52 PM
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Quote:
Originally Posted by Al the Infidel View Post
Whats your lightest measured trigger pull weight? Oh, thats strictly CZ triggers of course, to keep this in the CZ Forum. <img src="https://www.rimfirecentral.com/forums/images/smilies/rolleyes.gif" border="0" alt="" title="Roll Eyes (Sarcastic)" class="inlineimg" />
1-3/4 lbs. with the only properly fitting spring I could find (no do Ace spring). I would prefer 1-1/2, and could get it there with a slight clipping, but for now I will call it good.

(It's a 452 LH American)

Danny

Last edited by gas_gunner; 08-10-2018 at 07:01 PM.
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  #30  
Old 08-10-2018, 06:00 PM
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8 to 12 oz. with a spring I get from Lowe's hardware. Range shooting only of course. It seems to me that the 455 triggers are a bit smoother from the factory than the 452's and I've had more success getting them toward the low end of the pull range.

Hank
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