• This community needs YOUR help today. We rely 100% on Supporting Memberships to fund our efforts. With the ever increasing fees of everything, we need help. We need more Supporting Members, today. Please invest back into this community. I will ship a few decals too in addition to all the account perks you get.



    Sign up here: https://www.muzzleloadingforum.com/account/upgrades

Thread size

Muzzleloading Forum

Help Support Muzzleloading Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Joined
Mar 20, 2018
Messages
2,718
Reaction score
4,771
Location
Yuma Az
Shot my Pedersoli Ky rifle this morning. It did good. Cleaning I took the nipple out of the drum and it was really tight. When I went to put the nipple back in, it went in half a thread around and locked up. Took it back out and wire brushed the threads and tried to screw it back in. Same result. Looked at the threads in the drum, didn't look quite right.
What is the thread size for the Pedersoli Ky rifle drum and nipple. I need to get a tap for the drum to clean up the threads.
The last time I had this gun out everything went back together well. Don't understand.
 
Hello mushka,

My chart says 1/4-28, doesn't seem right for an Italian Manufacturer.
After you get things squared away, use a little Nickel antisieze on it.

AntiqueSledMan.
 
Before you start trying to re-tap the threads, try using a bore brush of about .25-30 caliber to put in the threads and twist it around to get any debris out of there.

The other thing that you want to do is go to Lowes or any other hardware store with the nipple. In the screws, nuts and bolts section is a thread gauge for both metric and SAE.

See which gauge the nipple screws into. That is the thread pitch that you want to get.

The problem that you are experiencing has happened to me on occasion. I get that problem with by percussion rifles and the cap & ball revolvers.

Just recently, I experienced the very same problem with my Howdah pistol and Charles Moore percussion pistol. Both of them are made by Pedersoli.

When trying to screw the nipple back in place, it is a little difficult to get started at first. It almost seems like I'm cross threading the darn thing. Nevertheless, I take my time and ensure that I am, indeed, getting the nipple started correctly. I use the nipple wrench to slowly turn the nipple and making darn sure that I am not cross threading it.

It seems tight at first but once I make a few turns it goes in easy. I don't have any problem removing or replacing them later on.

The other technique that you will see some people suggest is coating the threads with anti-seize lubricant. I have been using white lithium wheel grease on all my nipples for the past 40 years. I've never had a stuck nipple.

For example, I don't remove the nipples from my cap & ball revolvers for every cleaning. IMHO, there is no need to do that as long as I have pre-lubed the threads with the white lithium wheel grease.

The white lithium grease is cheap and plentiful. You can pick it up at the hardware store while you are measuring the thread pitch of your nipple.
 
Just maybe...
Could be the nipple hole came to you slightly cross threaded at the start of the hole. And, that it's been a matter of hit or miss on whether you catches the right path when you goes to put her back together.
If that's the case and your nipple went to the dark side this last time and you put some pressure on it, you might have reformed the threads a little bit to the wrong path.
 

Latest posts

Back
Top