Nipple Woes

[RWK]

Nipple woes

1861 Colt Navy Uberti- that uses M6-75 nipples (older model)
CCI #11 caps
Track of the wolf PIR-S M6-75 nipples

I installed 1 nipple and its way to long

Faced it shorter in a mini lathe till a cap will go on and cylinder will turn

Fired 2 caps and everything is fine

So I faced the other 5

Some caps go on and cylinder turns some wont so I take a pencil with an eraser and push caps on so cylinder will turn, so may be a little too long

Then I used the guns hammer to push caps on

1st try 4 misfires, all fire on 2nd try
2nd try 5 misfires, all fire on 2nd try

Now I am trying 1 at a time
All misfire, all fire on 2nd try

When looking at the cap it's not all the way down
On 2nd try cap is bottom out on the face and then fires.


At first I am thinking they are too long
But CAP HEAD is shorter than the caps already
Cap head may be too tight because I shorten it.
So I could put it back on the mini Lathe and reduce the heads Diameter and or turn the face back to make Cap head longer.

Any help will be appreciated  

[Fox Creek Kid]

Post this in the Darksider Forum for better results. 

[Professor Marvel]

Ah piffle, if only Mako were still here with his excellent graphics.

>Faced it shorter in a mini lathe till a cap will go on and cylinder will turn

The standard "tubes" or "nipples" are a tapered cylinder, so by facing it shorter without duplicating the old diameter and taper, you now crated a tube that would need a larger cap.

I recommend that you set the angle on your lathe bit to match the original taper and run it in until you duplicate the dimensions of the outer dianmeter of the end of the nipple.

ah I found the archive:
Here is a grand discussion with excellent visuals from our good Mako

http://www.theopenrange.net/forum/index.php?topic=9093.0

http://www.theopenrange.net/forum/index.php?topic=9094.5



yhs
prof marvel

[Fingers McGee]

RWK - see my response to the thread under the STORM forum.

[RWK]

Nipple fix

With a Sherline Mini Lathe

Track of the Wolf have no nipples that work

Track of the Wolf Nipples PIR-S M6-.75 have to be modified

OAL .525 reduced to .500

Removed .020 from the front face of seat to lengthened cone

Tapered profile of cone to refit #11 caps with a small file

Also one could counter bore revolver cylinder nipple seat .025 but then the #10 nipples will be too short.