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Cas City Forum Hall & CAS-L  |  Special Interests - Groups & Societies  |  Colt SAA Clones (Moderators: RRio, Gen Lew Wallace, Hoof Hearted)  |  Topic: Fitting 45ACP into Uberti Cattleman need help please. 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Fitting 45ACP into Uberti Cattleman need help please.  (Read 3971 times)
marko
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« on: June 09, 2016, 05:46:51 pm »


A few months ago as i posted here i purchased a Uberti Flattop target 45c, i just purchased from VTI a 45acp cylinder and as you know it requires some fitting. I have never done this before and have concerns... do i sand both the bushing and the star measuring carefully as i go along? Or do i send it to VTI to be fitted for a flat fee of $250 pluse shipping both ways anther almost $!00 I need help please.

Marko
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Coffinmaker
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« Reply #1 on: June 09, 2016, 07:21:27 pm »

Other than to polish the Burrs off the star, leave it alone.  The star establishes your head space.  Before messing at the star end, load
the cylinder with EMPTY cases and check the head space.  Optimum is .004 or .005.  Just set the cylinder with the cases in the chambers
into the recess at the back of the recoil shield and check head space with a feeler gauge.
Then install the Bushing and see if it will fit the window.  With a very flat surface and 350 Wet/Dry paper, carefully surface the Bushing
until it just slides into the window.  You don't and more than .002 End Shake (fore and aft movement).

Coffinmaker
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marko
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« Reply #2 on: June 09, 2016, 07:53:26 pm »

Coffin maker.

I got out my calipers and on the fitted 45c cylinder the bushing is 46.52 mm the cylinder to the top of one of the stars is 45.10mm the new unfitted 45ACP cylinder bushing measures 46.67 mm and the cylinder to the top of one of the stars measures 45.20MM. So DO NOT sand the star end at all? Only the bushing side?
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Coffinmaker
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« Reply #3 on: June 09, 2016, 08:36:44 pm »

Your close enough at the star end.  Polish only.  Do your fitting from the bushing side.

Coffinmaker
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marko
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« Reply #4 on: June 09, 2016, 08:58:36 pm »

I will attempt to sand the bushing on Saturday ... i ordered feeler gauges and will have them Saturday , do i leave the bushing in the cylinder when sanding or remove? Thanks for your help.


Marko
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Coffinmaker
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« Reply #5 on: June 10, 2016, 10:32:43 am »

I find it much easier to keep the whole thing square when surfacing if I keep it together.  Just the bushing is tough to control.  Remember
when you test fit to run a patch thru the bore of the Bushing first to get the crud out.

Coffinmaker
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Trailrider
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« Reply #6 on: June 10, 2016, 11:32:30 am »

Are you intending to use both the .45LC cylinder and the .45ACP cylinder interchangeably?  If so, you should check to see if the new cylinder is indexing properly, i.e., the chambers are lining up with the bore. To do this you need a "reach rod", which is the diameter of the BORE of the cylinder and it should slide easily into each chamber.  If not, the star may need to be worked on, and that IMHO is a job for the gunsmith.  The problem is that, unlike fitting a single cylinder to the gun, you can't just work on the hand surfaces. You may need to work on the star contact points of both to get it right.  Once in a while you will find you don't need any work on the indexing. I once bought a new .44-40 cylinder for an original Colt's Frontier Six Shooter because the original throats in the original cylinder were way undersized, and I didn't want to ream them. Bought the new cylinder and just for laughs tried it without doing anything to it. Locked up like a bank vault! And as I had specified .427" throats, it shoots like almost no other Colt's I've ever seen!
Best of luck with your project!
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Ride to the sound of the guns, but watch out for bushwhackers! Godspeed to all in harm's way in the defense of Freedom! God Bless America!

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marko
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« Reply #7 on: June 10, 2016, 01:19:28 pm »

Just the 45acp after i hopefully fit it.
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marko
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« Reply #8 on: June 10, 2016, 02:33:29 pm »

Anyone know of a good single action smith located in NC?
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Cholla Hill Tirador
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« Reply #9 on: June 11, 2016, 08:54:25 am »

 My first Colt-type SA was an older Uberti 44-40. I'd really wanted a 44 Special but the 44-40 was to cheap to pass up. So I ordered  44 Special cylinder from  VTI and slowly worked the north end of the cylinder Der bushing down until I could just slide the cyonder into the frame. Worked perfectly and the revolver is a tack driver.
 I used a piece of safety (laminated)  glass about 6" square for a flat surface. Started with 220 wet/dry and worked my way down to 400 grit.

 CHT
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marko
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« Reply #10 on: June 15, 2016, 01:53:44 pm »

Cholla


Did you have to work both ends with the sand paper? the bushing and the star.
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Cholla Hill Tirador
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« Reply #11 on: June 15, 2016, 03:38:08 pm »

Cholla


Did you have to work both ends with the sand paper? the bushing and the star.

 I did not work the star or.ratchet end. I figure since the star determines headspace, I'd best leave it alone.

  CHT
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marko
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« Reply #12 on: June 15, 2016, 04:37:40 pm »

Cool thanks, will let you know.
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marko
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« Reply #13 on: June 15, 2016, 09:28:04 pm »

Ok i fitted the cylinder took my time 220 to 400 grit but i had to sand both the star and the bushing ... had to. fits nice but when i look at the gap between where the projectile will enter the barrel there is a small gap that i checked with a feeler gauge .008 or 0.20mm is that ok?
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Flint
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« Reply #14 on: June 22, 2016, 05:20:21 pm »

First, check the headspace.  If it is right, don't touch the star.  If it is too long, shorten the star the correct amount.  Lastly, set the length of the gas ring/bushing.  Don't remove the headspace beyond spec to increase the cylinder gap, face the cylinder.  If it is the only cylinder, you can face the barrel extension, but you need to keep the cylinder gap correct for your primary cylinder, and adjust the other cylinders, not the gun.
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mc1911
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« Reply #15 on: March 08, 2017, 09:02:21 am »

The bolt on my Cattleman was too thick to fully fit in the cylinder notches of a 45 acp cylinder from a ruger 45 flat top (midsize frame) Blackhawk.

The cylinder appeared to be the same size It went right in. I would not recommend any try something like this unless done by a real professional single action 'smith.

This has me wondering about relative strength of the two types of handguns and conversion possibilities 8if done by a skilled PROFFESIONAL.

Anything you try is at your own risk.
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Cas City Forum Hall & CAS-L  |  Special Interests - Groups & Societies  |  Colt SAA Clones (Moderators: RRio, Gen Lew Wallace, Hoof Hearted)  |  Topic: Fitting 45ACP into Uberti Cattleman need help please. « previous next »
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