Comparing the Original 1876 with the Uberti 1876 - PICS

[Grizzly Adams]

Ok, time to see if I can get this back together!

First, I wanted to mention the bolt face, and the cartridge lip or rim that seems to be missing on some of the Chaparral rifles.  This lip acts as a support for the bottom of the rim, and is part of the original design and it is very important to the proper function of the action.

Here are a couple of pics showing first the original and second the Uberti bolt from my rifle.  Notice the lip on the botton of the bolt face opposite the extractor.




After disassembly, I spent some time cleaning up after the boys in Italy.   There were some burrs left over in this area, and I smoothed those up.  The worst was in the opening for the carrier arm.



Next I deburred and polished the carrier using a flat surface and a diamond steel plate.



The next step was to lighten up the carrier and lever springs a bit.  This is pretty commonly done on the 1873 to make them go quicker, but it is also important as the heavy springs will cause rapid wear on the lever cam.  By the way, it also happens with the originals.  Speed is not an issue with this rifle, so I just cut them down a little and polished them up.   I did not lighten the hammer spring, but may later on.



I began reassembly by putting the firing pin and coil spring into the bolt.



Bolt up and through the frame.



Stricker (back half of firing pin assembly) is inserted through frame and into bolt.  Locking key is installed.



Link pin drifted in left to right.



More later!

[Grizzly Adams]

Part 3

Carrier is returned to the mortise.



Carrier arm is installed next.



....and the lever.



Now we are ready to install the timing springs for the carrier and lever.  Given that Italian screws for these springs are so "soft", I thought I would replace them with the nifty American made replacements!   VTI sells them. The American made item is on the left.



Installing the springs.




Now the links!



Check for function, and install the side plates.



Now the dust cover:  The Uberti dust cover uses a spring loaded ball bearing to keep the cover open.  The original used a curved flat spring.  Take care when putting this back, as that little ball will take off on you - ask me how I know!



Once you have the ball on the spring and the dust cover forward past the check ball, you can install the dust cover retractor boss.  This little item is captured by the back edge of the extractor as the action is opened and moves the dust cover to the open position.



We are done   Time to go shoot!

For those of you that have these rifles, and are reluctant to take them apart, I hope this will be of some help.  These are really pretty simple designs and can be worked on easily as long as you have good fitting screw drivers.  They were after all, designed to function reliably  under harsh conditions, with a little reasonable care, and simple maintenance, by folks on the frontier of this continent.

[Ken41]

A friend of mine has an original stripped 1876 receiver. I was talking to him about it and mentioned that the Chaparral was suppose to be an exact reproduction. I dissembled my Chaparral and installed all of the internal parts into the original. All the parts fit. The Chaparral screws have the diameter and screw pitch as the original. The only areas of hand fitting would be the Chaparral side covers need a little more relief at the rear to drop into the action, and the sear/hammer needs adjusted.

He talked to Chaparral and found the it was cheaper to just buy a complete rifle to get the parts that he needs. He got three rifles, has
50 cal barrels on order from Badger, and is going to rebuild the original and the two other Chaparrals to 50-95. I am pretty sure that he is going to build them with a shorter barrel, and a short magazine tube. I think that the holdup is getting the barrels.

My understanding of the toggle links, are, that the pins, front, center, and rear are not suppose to carry any of the rearward thrust of the bolt. It is the rounded portions of the links and receiver that carry the load.

Ken
NRA Life
Southwest PA

[Hobie]

My understanding of the toggle links, are, that the pins, front, center, and rear are not suppose to carry any of the rearward thrust of the bolt. It is the rounded portions of the links and receiver that carry the load.

Yep, the pins just hold the parts in relation to one another.  It is neat and simple. 

[Joe Lansing]

    Reminds me of the trap door Springfield. The later models were designed to fire safely with a broken or missing hinge pin. The front of the breechblock tucked under the receiver hinge very nicely.

[Poohgyrr]

Thanks much for all this info.  Don't have one "yet" but the Uberti is on my list, just have to decide on which caliber...  (HAH!  So much for my decision not to get any new calibers to reload for...     )

In the meantime, I may watch Crossfire Trail again and look closer at that Centennial.

[Chuck 100 yd]

Grizzly , I have not heard of the company VTI. Can you post a link  or an address to get a catalog. I may have been there but dont recognise the name. Thanks  Chuck

[Grizzly Adams]

Grizzly , I have not heard of the company VTI. Can you post a link  or an address to get a catalog. I may have been there but dont recognise the name. Thanks  Chuck

Hi, Chuck.

Here's the link to VTI

http://www.vtigunparts.com/store/shopdisplaycategories.asp?id=106&cat=Rifles

[Chuck 100 yd]

Thanks pard !!  I had it in my favorites, just didn`t recognise the initials.