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General discussion => Gun Building => Topic started by: slowtrack50cal on March 10, 2009, 05:56:47 AM

Title: nipple repair question
Post by: slowtrack50cal on March 10, 2009, 05:56:47 AM

Hey all.  I have cross-threaded the nipple in my Plains Pistol.  The nipple is unharmed, but the threads in the barrel are messed up.  Is it possible to remove the top two threads with a drill bit and still have a safe shooting weapon?  Any thoughts?

Title: Re: nipple repair question
Post by: Steve-In on March 10, 2009, 06:28:20 AM

I think that would leave about 5 threads or less.  I would not feel comfortable.  If you have room you may consider a 5/16-24 nipple.

Title: Re: nipple repair question
Post by: Lucky R A on March 10, 2009, 02:08:26 PM

MBS and others sell oversize nipples & taps, simply choose one a size or two up from where you are and carefully run the new tap into the old hole, install the new nipple.   

Title: Re: nipple repair question
Post by: Dphariss on March 10, 2009, 04:44:01 PM

Quote from: slowtrack50cal on March 10, 2009, 05:56:47 AM

Hey all.  I have cross-threaded the nipple in my Plains Pistol.  The nipple is unharmed, but the threads in the barrel are messed up.  Is it possible to remove the top two threads with a drill bit and still have a safe shooting weapon?  Any thoughts?

This is why breeches should be harder than the nipple.
Does the nipple even engage the top 2 threads when seated?
Many are rebated and have about a 2 thread gap at the top of the threaded portion.
The threaded portion only needs to be 1/4 long for max strength.
But I also hate blowing out nipples. One reason I shoot flint.
RETAP DO NOT DRILL.
If you cannot be sure of tapping the top 2 threads without damage find someone who can.

Dan