Cz550 Kevlar bedding

[Wurzle]

I have a Friday afternoon cz550. Hs Kevlar stock. Ali bedding plate. Had it apart today to rectify trigger sears and found some bedding issues. At the rear of the bed plate there are witness marks of the 'teeth' on the bottom of the action. At the the front of the bed plate these marks don't exist. Upon further examination when the action is torqued down, I can get a feeler gauge between the action and cncd bed plate.

 

Now, I'm thinking this is not right. It seems the front lug is too long. It gets worse!

 

The bottom plate doesn't sit flat on the underside of the bedding plate either. It sits there and rocks up and down by about 4 mm.

 

Is this going to cause me problems, as I'm a bit annoyed that after all the money to buy the ******, it may need work to make it right.

 

Opinions please chaps.

[Wurzle]

Maybe a bell and Carlson stock. They both seem to produce them.

[Wurzle]

By the way, I've started cutting and shutting on this stock now. It is not Kevlar. It has some glass fibres in it but not enough to call it fibreglass, certainly not Kevlar. I feel cheated. I think it's injection moulded too.

[Highbird70]

Where did you buy it?

 

Found this:

HS Precision Stocks

Back to Stocks

ENGINEERED FOR ACCURACY

HS Precision Pro-Series synthetic stocks feature the original aluminum (7075) bedding block chassis system designed by HS Precision in 1982.
They use a propietary hand laminated composite filled with a RIM urethane foam in all the Pro-Series stocks.
HS Precision has built over 10,000 M-24 stocks for the US Army with zero warranty returns.

ENGINEERED FOR RELIABILITY

Every HS precision Pro-Seies stock starts with their aluminum bedding block system. Multiple layers or fiberglass, Kevlar and carbon fiber are bonded with structural urethane foam which is machine mixed for reliable uniformity.
Whether it is a sporter stock for the discerning hunter or a fully adjustable tactical stock, they all must meet HS Precision's rigorous standards for reliability.

Edited June 27, 2014 by Highbird70

[kent]

I have a Friday afternoon cz550. Hs Kevlar stock. Ali bedding plate. Had it apart today to rectify trigger sears and found some bedding issues. At the rear of the bed plate there are witness marks of the 'teeth' on the bottom of the action. At the the front of the bed plate these marks don't exist. Upon further examination when the action is torqued down, I can get a feeler gauge between the action and cncd bed plate.

 

Now, I'm thinking this is not right. It seems the front lug is too long. It gets worse!

 

The bottom plate doesn't sit flat on the underside of the bedding plate either. It sits there and rocks up and down by about 4 mm.

 

Is this going to cause me problems, as I'm a bit annoyed that after all the money to buy the ******, it may need work to make it right.

 

Opinions please chaps.

 

The HS stock does not give perfect fit (it cant do) what it can give is great stability under climatic changes. I always bed them with Hysol (used to repair ali casings) this gives the Glass finish and high / 100% contact area your looking for. Remember you still need to machine out the lug recess and the back tang fit area etc. even if just giving it a skim.

A good stock just don't expect it to do more than it is supposed to

[Wurzle]

Thanks for the replies. I got the rifle from sgc dorset. Nice guys in there.

 

I took it back to them and they agreed, after comparing to fitting with wooden stock, that it was not the best job ever!

So, Edgar bros say there are no more of those stocks for the cz550. No more complete rifles either. The only option is a bedding job. I would rather do this myself.

 

I removed the butt pad, it was bonded on so it removed a nice chunk of stock with it. This is where I saw the material make up. I've been trying to show you pictures but iPads don't upload here.

 

I am a shipwright by trade, I work with wood, metal and grp. This stock is made of several materials, like high bird quoted, but I would NEVER call it a composite. However, it's mine now and I've smashed the end off so I need to work it up. I've added 2inches on the stupidly short 11.5 inch lop and a cheek riser, all made from wood. Ill glass it to the stock after I have lived with it on a temp fixing. It might annoy me. (Cleaning rods)

 

The stock is so sub standard it seems like a gimmick selling tool and I've been caught. The cheek is so low because of the length of the bolt. The bolt on full extraction runs on the cheek peice. The new riser is 25mm high and still allows function and removal of the bolt.

 

Rant over! I'll see if I can get the pics on.

 

Cheers.

[kent]

There is nothing wrong with a HS stock, these stocks passed the most demanding testing by the likes of the FBI in their selection criteria. The issue is you cannot Cast the ali to a perfect fit to the action, like a say it adds stability. The bedding job is easy and will normally tighten groups but the design though is all about holding zero through changing climate which it achieves very well. The stock besides being used in the HS rifle was also selected by Remington in the PSS (made for police depts. on a lower budget criteria than the FBI no doubt) and one high grade varmint rifle from the same manufacturer and CZ

I don't see how you can compare to a wood stock that changes with the climate and cannot be truly checked for fit correctly without a lot of inletting marker applied etc.

Perhaps you might be better doing a stock trade with someone before you go any further down this road?