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Dirtfarmer,I dont know the difference between the C&H design.Can you help me out? Thanks in advance.

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Originally Posted by Mule Deer
Yeah, that's been my experience. I did replace one with a Timney just to see how the Timney worked, and of course it worked fine.

But you know Campfire rifle loonies: Never use a simple solution when you can spend extra money "customizing" a rifle that already works fine.


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Originally Posted by Autofive
Dirtfarmer,I dont know the difference between the C&H design.Can you help me out? Thanks in advance.

The "C" has only the extractor raceway cut thru, thus it sorta looks like a "C".

The "H" is both raceways cut thru, sorta looks like an "H".

Gotta use your imagination...

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Thanks for the offer Dirtfarmer.

PM sent.

BTW, here is the little beauty. The colour of chocolate cake with dark marbling throughout the walnut:

[Linked Image]

[Linked Image]

[Linked Image]

Last edited by olgrouser; 05/18/15.

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Nice, long and sleek.

If I can figure out the Canadian shipping details, I'll send you the trigger. Other than the broke piece, it's really good. I probably wouldn't have gone with the Timney if it hadn't broken.

If you're gonna dial out the set feature, see my earlier post on extending the bottom metal trigger slot . It will save you some heart burn... whistle

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Last edited by Dirtfarmer; 05/18/15.
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Originally Posted by Dirtfarmer
The CZ 550 factory trigger I replaced was working fine until I broke the MIM part. I don't know about shipping to Canada, but would be willing to send the OP this unit. He could replace the broken part from his trigger. This one has a good pull with the set feature dialed out.

This may be an option if he gets no satisfaction from CZ. His trigger may just need some adjusting, but my offer stands.

DF

[Linked Image]


I hate MIM.

I've read that MIM parts have 95% of the density of real steel, but experience shows that there are potential flaws that often go undetected and can lead to failure. Magnafluxing or a similar process could probably detect the flaws, but it's unlikely to be done on a part made so as to save money. The adjustable sight on a Kimber Target II I bought for my son snapped off at the top of the dovetail, and as it was apparently pressed into place by a hydraulic press, had to go back to the factory. DF's trigger problem could have gotten somebody killed.

Kahr uses MIMed slide stops for their lower-grade pistols, but increases the diameter to compensate for the weaker material.


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Since we are on this subject. DF, can you tell me if this is a set trigger? The older gentleman I bought it from told me it was not a set trigger, but the older single stage. Interesting topic guys. By the way, I really like this trigger. It is set to 2 3/8 pounds and breaks like a glass rod. It was adjusted this way when I got it, so I haven't messed with it to see if it is a set trigger. Just took the old guy at his word. I'm more of a model 70 guy, but this CZ 550 9.3 is a great gun and extremely accurate.

[Linked Image]


Originally Posted by raybass
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style.
Originally Posted by Pharmseller
You want to see an animal drop right now? Shoot him in the ear hole.

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That is a set trigger.


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Thanks ed...


Originally Posted by raybass
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style.
Originally Posted by Pharmseller
You want to see an animal drop right now? Shoot him in the ear hole.

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Originally Posted by EdM
That is a set trigger.

+1

Compare it to the photo I posted.

Same.

DF

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Looks the same. Thanks guys.. I really like the trigger. It is very smooth, no creep and breaks like a glass rod. Set is disabled in adjustment I guess. I've never messed with it because it has been great where it has been set by previous owner. I'll also keep an eye on the trigger guard when I take it out of the stock. If I remember correctly, it is tight when pulling the guard out of the stock. Kind of hangs up on the back of the trigger...


Originally Posted by raybass
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style.
Originally Posted by Pharmseller
You want to see an animal drop right now? Shoot him in the ear hole.

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bsa

Two CZ's and one ZKK 602 adjusted to about 3# by 'smith did exactly that to set feature, which I am happy about. And, yes, they are tight fitting, particularly when bedded.

Last edited by agazain; 05/21/15.
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I am pleased that my ZKK 602 came with a single stage trigger. I still don't understand why CZ is putting the set trigger on their larger bores. No one wants them and one would think that the simple single stage trigger would cost less to make, install and adjust at assembly time.


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Set triggers must be a European thing.

Look at the photo I posted earler. The steel housing looks machined, non MIM, although the broke part is MIM.

This trigger is a lot more complicated with more parts and machine work than the Timney that replaced it.

I have two CZ's, neither one has the factory single set trigger. Although in all honesty, the one I broke was adjusted pretty well and if it hadn't failed, I'd probably still be using it. It wasn't as good as the Timney, but not bad.

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Originally Posted by EdM
I am pleased that my ZKK 602 came with a single stage trigger. I still don't understand why CZ is putting the set trigger on their larger bores. No one wants them and one would think that the simple single stage trigger would cost less to make, install and adjust at assembly time.


That reminds me of the first cape buffalo I shot, using a CZ 550 416 Rigby. It quartered very close to us, and I was so used to setting the trigger I did for this shot. The PH heard the "click" and turned white, thinking my rifle had misfired. grin

I love set triggers, single or double. I used my first one at 13 and have liked them ever since. I'm convinced I shoot more accurately under all circumstances with an 8oz pull.

I do like good single stage triggers like my Timneys, Dayton Traisters, and inexpensive Bold triggers.

Good triggers go a long way towards preventing the jerk-n-flinches.


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Thanks for the advice and input. Yesterday I went to the range after disassembling the CZ rifle and adjusting the trigger. I think the problem is sussed. The set trigger function every time except when I engaged the set trigger with the safety in the off position. If the issue persists I bought 6 & 7mm wrenches to completely reset the trigger unit as per the instructions posted.

I found a medium load for 55 gr. of H4895 and Barnes 250 gr. TSX bullets {may need to reduce this in order to seat the bullets under 3.29"].

Anyone used any Barnes bullets and similar loads on game?


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I have the same 550 in the same caliber and my set trigger has never done that. It seems to work fine. I have no gripes about it and it shoots great. The trigger is pretty crisp without setting it so I hardly ever use the set feature. It kicks enough that I don't like the very light pull. Amazingly, the best accuracy I have found is the Prvi 285 grain factory loads and they work great on game. It will shoot 1" groups all day and my handloads are no better. Plus it's pretty reasonably priced. It's Mauser enough for me and it is one of my favorite rifles.


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Never, ever use set triggers for hunting.


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