cz 452 front escutcheon

Canadiankeeper

Canadiankeeper

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Now this is my first 452, I noticed something I had never seen before as all my rifles have been free floated barrels...

This has a removable front escutcheon. I'm assuming adjusting the torque spec on it may help me tune it in for accuracy. (I plan on experimenting with this)
it came in around off around 30, so that is what I put it back on as. This rifle is a tac driver...

Now my question is, does it really play that much into the accuracy... anyone tried not using it before ? It is removable, so I can free float the barrel.
Part 47 and 48

https://shop.cz-usa.com/czpartslists/CZ452.pdf

Also, do the boyd's stock come with this hole predrilled ? Will I have to free float the barrel if I want a boyd's, should I ?
 
If you are referring to the front barrel lug, you can play with the torque and see what it does to your rifle. I keep mine at 15 in/lbs and the main action screw at 20 in/lbs. Some of us have affixed the "free floating" lug to the barrel with a set screw or just glued it in the dovetail with epoxy. It helps to keep the barrel centred in the stock, if the barrel is free floated. If you decide to bed the action down the road, pillar bedding the front lug is a good idea.
K
PS: The Boyd's stock that I have (Rimfire Hunter for the 452 Varmint, 22LR) came with the front lug pre-drilled/mashined out. They even installed a cheesy plastic pillar that didn't last for very long....
 
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that is a spin on the BRNO number 4, same idea. shoot groups and adjust the tension on the front screw until you get the best results
 
It strikes me that you have a CZ452 Varmint. IIRC the American does not have this front screw.
The dove tail can be frozen using a M6x6 set screw. This will center the barrel in the stock.
My CZ452 Varmint was not free floated. Once the barrel is free floated the freezing of the dovetail really helps.
Attached is one photo:

 
On the BRNO 4 it is located right at the end of the stock and doubles as the front sling swivel
 
So that thing that looks like a pillar at the rear is it? And what is it supposed to do ? I'm imagining it is another nut that's imbedded in the stock ?
 
Keithjohn said:
So that thing that looks like a pillar at the rear is it? And what is it supposed to do ? I'm imagining it is another nut that's imbedded in the stock ?
Click to expand...

it is a pillar in the rear, it holds the action steady and the front escutcheon is used to apply downward or upward pressure on the barrel to aid in tuning the rifle to the ammo
 
Well, the way it's set up it really doesn't do much except tie the forearm and the barrel together. If the American doesn't have it, it's inclusion on the Varmint may have something to do with the increased weight of the bull barrel and the leverage it would have on the single action screw.
I've added an epoxy pad between the barrel and forearm on my Varmint, directly above the swivel stud to reduce stock flex when using a bipod.
 
The American and Lux models don't have a barrel lug; that's only on the 452 Varmint. The American (I don't remember about the Lux) has the rear action screw going into a lug on the tang. Like the Varmint the lug "anchor" (for want of the proper term), it is movable on the American and some shooters fix it in place by various means, including a screw or epoxy.
 
For those with the front lug, a stainless steel washer provides a little lift to free float the rest of the barrel. The rigidity of the washer helps maintain consistent pressure when tightened down with a torque wrench. Quite a few people on RFC have found increased accuracy this way. My UltraLux tightened up nicely.

Thanks,
Cal.
 
This is what it looks like when pillar bedded:

452 Silhouette, factory stock:


Boyd's:


This is a different front lug configuration that can be found on CZ452 Full Stock 22LR:


Kody
 
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