Accuritizing a CZ455 Grey Thumbhole Advice please

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Safeside

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Hi Guys,
I have just bought a CZ 455 grey Thumbhole. It is without question on of the nicest guns, I have ever held in my hands, aims naturally, and I can't wait to shoot her. Just waiting on a rail conversation to scope and shoot. The target that came with the gun, was good, but not great, about 1 inch group at 50 yards.
Even before she arrived, I was debating pillar and glass bedding the action. I read some reviews that claimed some substantial increased accuracy, with pillar and glass bedding.
Does anyone have any experience accuritizing the 455 or 452. What did you do? How much of an improvement did it make? Any suggestions on products, information sources or even a gunsmith that specializes in accuritizing these guns. I would like to do the work myself, but having never done it before, not sure what I'm getting into. You considered thoughts and experience is much appreciated.
 
Shoot it first.
The factory target is basically meaningless,it only shows the rifle fired.
The factory target that came with my 455 was pathetic.
The gun shot quite well despite the crappy target.
There are lots of tuning threads over at Rimfire Central.
Good luck!
P.S.
I did end up pillaring and skim bedding it, I think it improved the accuracy,but finding the ammo it likes best is the biggest challenge.
 
Above x 2 ^^^^^ Start out with sub sonic and shoot a couple of boxes before you tear into it.
I have done pillars and bedding on 452's and 455's. And am probably close to your back yard as well as a couple of other members on here that have some cz experience as well. :)

Rite Kody

R
 
-shoot it first, find out what ammo it likes
-don't mess up the chamber/bore/crown with careless cleaning, i mostly use boresnakes
-find a torque wrench and adjust barrel & action, i had luck with 22# on the action and i stick with 32# on the barrel screws
-get a yodave trigger upgrade.

bear in mind, ammo and user will almost always be the weakest link, i see no need to bed the thing, and all of the above can be done by a 14 y.o. kid.
Enjoy the shooting above all !
 
American Eagle Hollow Points will kill gophers out to 100yrds no problem
A Rimfire scope and good rings and some trigger time is all you will need.
Ahhh trigger a Yodave trigger kit may improve some.
The target is for function only now a days.
There are several threads about the CZ452, 453 and now the 455.
Still want to spend more money head over to RimFire Centra lthey will educate you very quickly and easy to shoot the CZ really is.
Rob
 
Thanks guys,
Sounds like the target may not mean as much as I am thinking.
I will wait to shoot it and then consider a yodave if I don't like the trigger.
Dry firing, the trigger felt fine, the few times I tried.
I was assuming, for the target, they used the best Ammo for the barrel in general, and did it machine rest that made it as accurate as possible.
 
The target is only to confirm the gun works and does nothing to represent accuracy.When you get a spare barrel you also get a target.The beauty of your CZ is you can dry fire with no worries as the striker doesn't
extend past the front of the bolt.

R
 
As others have noted, the factory target is not an indication of accuracy but rather of function (the rifle shoots). The best first step for accurizing your CZ, is to do a Yodave trigger modification. This lets you get the trigger pull down to less than a pound. You need a light trigger for serious shooting from a bench. There are stickies on RFC on how to do it. It is easy to do and you don't need many tools, just a 3/32 punch and a hammer.

Before pillaring and bedding the stock, shoot the rifle. Shoot it a lot, to break in the barrel, so to speak. Many on RFC report that their rifles shoot better after the barrel has a brick or so through it. You can use cheap ammo for this. The most important thing for achieving good accuracy in a gun like a CZ is to use good ammo when you want to assess how it shoots. Use ammo like SK Standard Plus, which does well in CZ's. Don't skimp on ammo. CCI SV isn't good enough for serious accuracy. The only substitute for good ammo is wishful thinking, but that won't get good results.
 
You already have received some very good advice in this thread, but I will chime in because I have the exact same rifle.

In my case the first job was to find which ammo the rifle preferred. Although SK is often very good in CZ rifles, mine did not do well with it. After testing every type of match grade .22 ammo I could get, mine proved most accurate with RWS Championship. I am very happy with the accuracy using this ammo and have no plans to try any type of bedding. You can see my rifle setup here (post number 458):
http://www.canadiangunnutz.com/forum/showthread.php/895924-My-22-shoots-1-2-quot-groups-at-50-yards-meters-all-day!-Really-Prove-it!/page46

I just wanted to add that the one modification that I highly recommend is a lighter trigger. Mine has a 9oz DIP trigger spring, but I have also used the YoDave trigger kit with good results on other rifles.

Cheers
TEG
 
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grauhanen said:
As others have noted, the factory target is not an indication of accuracy but rather of function (the rifle shoots). The best first step for accurizing your CZ, is to do a Yodave trigger modification. This lets you get the trigger pull down to less than a pound. You need a light trigger for serious shooting from a bench. There are stickies on RFC on how to do it. It is easy to do and you don't need many tools, just a 3/32 punch and a hammer.

Before pillaring and bedding the stock, shoot the rifle. Shoot it a lot, to break in the barrel, so to speak. Many on RFC report that their rifles shoot better after the barrel has a brick or so through it. You can use cheap ammo for this. The most important thing for achieving good accuracy in a gun like a CZ is to use good ammo when you want to assess how it shoots. Use ammo like SK Standard Plus, which does well in CZ's. Don't skimp on ammo. CCI SV isn't good enough for serious accuracy. The only substitute for good ammo is wishful thinking, but that won't get good results.
Click to expand...
X2 I would leave it alone except for lightening up the trigger. Finding the right ammo it likes is key.Both my varmints like SK Std Plus the best.my 452 is all stock except the trigger it shoots as good as my pillar bedded Boyd stock 455.
 
Work with what you have first. I have a 455 American that is slowly getting worked into shape. They aren't the easiest action to bed, so I haven't.

I did buy an inch pound torque wrench (Wheeler FAT wrench), and use it on the action screws and barrel screws. So far, 20 in lbs on the action screws and 35 on the barrel screws seems to work ok. Be sure to torque the screws slowly and evenly in small increments, don't let the action rock in the stock.

Good optics seems to have been overlooked so far. The scope is the last place you should try to save money, next to ammo. A rifle that will shoot half inch groups with a good scope will promptly shoot 1 inch groups if you switch to a scope that has 1/4 inch or more of parallax. Buy good glass, you won't regret it. AO or EFR is a must in my opinion. Don't be fooled into buying a scope that has AO down to 25-30 yds if you intend to shoot closer than that.

CZ triggers.. are what they are. The Rifle Basix trigger gets good reviews, I haven't heard much about the Timney offering. The Yodave kit helps, if you can make it safe using it. I didn't have much luck using a lighter trigger spring. The rifle bump fired pretty consistently as soon as I went lighter than the stock trigger, which is about 3 pounds and a bit on my rifle. So it stayed stock, which isn't that bad.

There are at least two schools of thought regarding full floated barrels. Some prefer it to float completely from the action forward. Others like to see contact at the tip of the stock, or about three inches in from the tip. Do some research on that, see what makes sense to you.
Good luck! Nice rifle, BTW. I looked at one on Wednesday, it's a good thing I'm not a fan of thumbhole stocks!
 
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Thanks everyone. Amazing advice.
I will shoot if first hopefully this coming week.
I will definitly put good glass on her, my plan is to shoot her at lingers distances about 200 yards to practice wind reading for F-Class and PRS.
I have an inch/pound torch wrench and will start with that. Then look at a yodave. And only if I can't get adequate accuracy go to bedding. Great resources for that too. Thanks again. Great stuff.
 
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