New CZ Varmint .223

A

ATeaM

New member
Anyone seen these yet ?

34.jpg

35.jpg



"New for 2002. Built on the popular CZ 527 action, the Varmint sports a 24 hammer forged heavy barrel, an H-S precision Kevlar composite stock with an aluminum bedding block. The 527 Varmint features: single set trigger, Controlled round feed, fixed ejector and a 5 round detachable magazine. (scope not included)."

www.czusa.com/_p/pdt.php?id=35


I can't wait to hear about these. Anyone got an idea of what the price will be ?
 
This may sound like a stupid question, and you guys can make fun of me and bully me if you want, but why would you want kevlar in a gun stock? I mean, I understand the tensile strength of kevlar, and obviously I don't think you'd try to stop bullets with your gun... but just don't understand the application.
 
its tactical

:)
there is a "kevlar" AR lower too
chopped kevlar is blown into the plastic mix
these are not cross strand laid up fiber stocks

form may follow function
but marketing follows money

if they thought it would increase sales,
they would blend in 1/4 MOA bullet holes to the stock
 
in layups over a core, it takes less kevlar to achieve the stiffness necessary for a stock than using fiberglas. I admit, this probably amounts to a tiny difference in weight, but once the advertising guys got hold of it, it probably took off.

On an airplane or race car, it makes a lot of difference. On a stock???

The only other possibility is the greater toughness of kevlar, in case you want to use your stock to break down dead wood for a fire....
 
Er, excuse me, but...
Kevlar is an aramid fiber, it has great tensile strength, but VERY LITTLE inherent STIFFNESS.
It is totally wasted in gunstocks.
Glass or carbon fiber are better for stiffness in composites, by far.
I know, I used to build rocket engines. Composites are a specialty of mine.

Kevlar is difficult to wet properly with epoxy resins, so bonding to it is a nightmare.
Kevlar also sucks water, and is thus less than ideal as a composite stock material.
The only reason Kevlar is used in stocks is because the odious marketing pukes decided they needed to have a buzzword in the mix.
No real life composite engineer would use Kevlar in an application like this when S-Glass and Carbon fiber are available, superior and easier to work with.

Once you understand Kevlar, you will realize that it is ideally suited for some things, and wholly unsuited for others. Merely putting Kevlar in something does not make it stronger or more "tactical", any more than a coat of black paint does. :rolleyes:

Further:
Check the barrel twist rate on that CZ before you buy it for long range shooting. The .223 barrels are usually 1-12 rate on CZs, and they will NOT stabilize bullets heavier than about 55 grains. :eek:
 
If the Kevlar stock is such a POS, you can always go with the laminated wood.

Oh, and I emailed CZ to ask about the barrel's twist rate. I agree, it would be a waste if it was 1 in 12.
 
I have been working on a ruger 10/22 lately.

In learning about really accurate rifles things like tuning the barrel or bedding the action and barrel become important.

I wonder if the kevlar does not have some fairly decent thermal characteristics. The shrinking and expanding of a stock affect the bedding of the action and the barrel a little bit.

If kevlar is relatively stable then perhaps that is the advantage.

It is also fairly light but how it compares to fiberglass I would defer to MAD DOG on.

MAD DOG, can you comment on the thermal expansion/contraction characteristics of kevlar??
 
Kevlar has pretty good thermal characteristics, but that is NOT the point.
The point is stiffness and stability during changing climatic conditions, especially wetness and humidity.
Kevlar is the wrong material for best performance under those conditions.
 
Well, it's Monday, and CZ replied to my email. Unfortunately the twist rate for the new varminter is 1-12 :(.
 
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