Nipple woes

[DCP]

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

[fouronesix]

The idea is to get a snug fit that bottoms out the cap on the nipple. Matters not #10 or #11. No problem turning down the nipple to fit the caps on hand--not only the length of the nipple but also the diameter. It is best if the nipple has a slight taper as the cap should be a snug, expanding fit as it is pushed down until bottoming out. Shouldn't have to use a tool to do this if the fit is right. As you noted, the OAL of the nipple with cap has to clear as the cylinder rotates.

[Hellgate]

Before you try to reshape the nipples, get some #11 Remington caps. They are shorter and will go farther onto the nipple. The CCI caps are less forgiving (harder walls) and do not expand to conform to the nipple shape. Otherwise get some Track ofg the Wolf stainless replacement nipples or some Slix shot nipples. The Slix will work with CCI#11s, & Remington #10s.

[DCP]

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.