Uberti 1862 Police - Blow back Cap Jams

[Vigo]

My Uberti 1862 Police has far more problems with cap jams than the '51 Navy does. These almost always occur with a cap ending up in the frame slot where the hammer travels. I need needle nose pliers to get the cap fragments out.

 

I recently de-burred and polished the hammer face and the safety pin slot, but my feeling is that this will only be partially helpful. I looked at doing the pin mod to block the caps, but there's not enough meat in the frame to do it.

 

I think what may be happening anyway is the hammer is blowing back after each charge is set off, causing the cap to blow back a bit with it and then jam in the frame.

 

'm considering venting the nipples on the gun. Has anyone put nipples in a vice and vented them with a small hole drilled in the side? What size hole did you use? My figuring is that I can beat the problem pretty well with the polished hammer face, vented nipples, and a somewhat lighter powder charge (blow back happening with 13-15 ish grains of FFF, which is a fairly standard load).

[Shorty Jack Hammer]

I've never heard of venting the nipples. For some reason it doesn't sound like a good idea. Perhaps you are using the wrong size caps. Maybe pinch them on.

 

Edit.-well I take it back apparently there are some nipples with what appear to be little "vent" holes in them although I couldn't determine the exact purpose of them in my quick research. Someone who actually knows something is likely to chime in

[Major Crimes]

Slix shot nipples have the vent as well.

 

https://badmanbullets.com/OnlineStore/proddetail.php?prod=SliXshot-Black-Powder-Nipples

[COAL CAR KID, SASS #15921]

If you are not using Remington #10 caps already; give that a try first.

 

Slix shot nipples would fix it otherwise.

The flash hole in the nipple is also larger than a factory nipple.

[J-BAR #18287]

Does it have the factory hammer spring? If the hammer spring has been replaced or lightened, blowback increases. If you are getting caps blown back with 13-15 grain charges I suspect the hammer spring is too light, or the strain screw isn't tightened down.

 

Ampco or Slix Shot nipples with their smaller flash holes are a must in any case. Smoothing the hammer face and filling the slot with JB Weld helps too.

 

You should be able to load 20-25 grains of 2F without blowback if you use the right nipples and moderately strong hammer spring.

[Tully Mars]

I don't think there's enough material on the frame to do the pin method. Look at Long Hunter's cap jam method, this is what I'm doing to my wife's with slix shot nipples added. There are pictures on the Long Hunter website.

 

Tully

[Prairie Dawg, SASS #50329]

If there is not enough "meat" to do cap rakes, maybe the Manhattan Conversion is called for.

A bit of the recoil shield is milled away and replaced with a piece of steel with a slot in it too small for the cap to pass thru.

Then the sides of the hammer are milled down to pass through the slot and pop the cap.

Rowdy Yates at Lee's Gunsmithing did 2 sets of my cap guns,

Works a treat.

 

I have both cap guns with both cap rakes and the Manhattan conversions. Both work well

The illustration below is of Rowdy's work

 

Remington #10 caps and Treso or Slix nipples completes the reliability package.

Treso nips have a very small exit orifice.

Slix are vented caps that have a larger exit orifice.

Both work well, and my many cap guns wear both types, although I have a slight preference for Treso.

 

--Dawg

 

[Lefty Dude, SASS # 51223]

Slix-shots will not fit, they must be modified. I have done this modification. Your powder load is to great for the little piece. Try 8-10 grains.

 

BTW; good luck !

[J-BAR #18287]

Slix-shots will not fit, they must be modified. I have done this modification. Your powder load is to great for the little piece. Try 8-10 grains.

 

BTW; good luck !

The Uberti website lists the 1862 Police as a .36 caliber. A .36 should handle 20 grains easily, shouldn't it?

 

I have not owned a '62 Police, so if it has a lighter hammer spring than an 1851 Navy the powder charge is a consideration.

[Larsen E. Pettifogger, SASS #32933]

The Uberti website lists the 1862 Police as a .36 caliber. A .36 should handle 20 grains easily, shouldn't it?

 

I have not owned a '62 Police, so if it has a lighter hammer spring than an 1851 Navy the powder charge is a consideration.

The 62 Police is built on the 1949 pocket frame. It is much smaller than an 1851 Navy.

[J-BAR #18287]

The 62 Police is built on the 1949 pocket frame. It is much smaller than an 1851 Navy.

OK, thanks- I learned something today!

[Jabez Cowboy,SASS # 50129]

The 1861 is on the Navy frame and is a .36 cal. And I use mine with 27 gr. 3F...

But I like my 1851s better...

 

 

Jabez Cowboy

[El Hombre Sin Nombre]

I don't think there's enough material on the frame to do the pin method. Look at Long Hunter's cap jam method, this is what I'm doing to my wife's with slix shot nipples added. There are pictures on the Long Hunter website.

 

Tully

Here's the picture Tully was talking about:

http://www.longhunt.com/web/uploads/images/Action%20Work/Anti%20Cap%20Jam%20003%20(450%20x%20600).jpg

[The Original Lumpy Gritz]

OP-Are you using real BP? This sounds a bit like over pressure.

OLG

[Vigo]

Correct - this is the pocket frame with rebated .36 cylinder - the Uberti version. Powder is FFF Goex or Swiss, depending on what I have stocked. The gun is stock, aside from Track of The Wolf Stainless nipples. The originals had the same issue, but more ignition problems. Correct - not enough frame to do the pin. Reducing the load is my next move. The vented idea came from Slix shot nipples - the idea that I could vent the Track nipples as the Slix have. What size is the vent in the Slix? I figure I could have the problem licked if I reduce the load and vent the nipples, but have never tried venting before.

[Vigo]

The Track stainless nipples have helped, as has de-burring the hammer and hammer slot. The only jams I'm getting now are blow-back type. The hammer does not pull caps, rather the hammer bounces back and allows the cap into the frame even at 10 grains of FFF. Does anyone make a slightly heavier/stronger main/hammer spring for the Uberti '62? I think that's the most straightforward solution for the problem that remains.

[Lefty Dude, SASS # 51223]

Try cutting down a 51 hammer spring ? Maybe ?

 

The slixshot cones are specially built and the relief holes are a very important part of the design. We cut down SS cones to fit the 62 cylinder. They are larger than the stock 62's. Chuck then in a drill press and use a file to turn them down to fit. The collar is the large part.

[Vigo]

 

Try cutting down a 51 hammer spring ? Maybe ?

 

The slixshot cones are specially built and the relief holes are a very important part of the design. We cut down SS cones to fit the 62 cylinder. They are larger than the stock 62's. Chuck then in a drill press and use a file to turn them down to fit. The collar is the large part.

 

 

Good thoughts. What size are those relief holes in the Slix? Are they 1/32 inch? I thought about those nipples, but the Track stainless ones have given 100% ignition and take a Remington #11 cap, which allows me to use the same caps as my wife uses on her rifle. The Slix look like #10 caps.

 

I'll check on spring dimensions - you might be right about using a modified spring for a larger revolver. I'd have to see just how much strain that puts on the action though. A little extra is good, but too much would wear the action parts. I contacted Taylor's and VTI about a "heavier" spring specifically for the '62 but they say they just have "stock" springs. The stock feels pretty weak to me (and blow back at 10 gr of Goex is sort of weak).

 

I was really encouraged by the de-burring of the '51 Navy I have. I watched the Mike Beliveau video on de-burring and it brought me to one jam in about 60 shots or so. The hammer was dirty and that seemed to cause the cap to pull that time. Good stuff.