Machinist question

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Pohill, yes the angle that the nipples are set at is a major point. And since they are at an angle any replacements would need to not only sit at the same angle but would need to be trimmed, if needed, to the same height. Only at the same specified height would the hammer land flat on the cap's face to produce the most pressure equally around the rim of the nipple. Raise or lower the rim of the nipple or make the cap sit higher or lower and you won't get a nice flat impact. Instead it'll hit the forward edge if too low and the rear edge if too high.
 
I was thinking that since the nipples are installed at a slanted angle, there would be less pressure against them compared to the straight-in Colt or Remington nipples.
 
Before doing any machining, I'd contact places like Dixie Gun Works, Track of The Wolf or Muzzleloader Builder's Supply to see if I could find the proper nipples for the gun. If you can't find the nipples that fit the gun, you might find some that have a slightly larger threaded end. That being the case, all you would have to do would be to drill and tap the existing holes for the new nipples. Only as a last resort would I fill the existing holes and redrill for a smaller nipple than the original one. My concern would be the safety of such a fix. Would such a fix blow out when the gun was fired? I've never done it so this is just my humble opinion. The advice is free and worth every penny of it.
 
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The Ruger nipple thread is #12-28. I wouldn't hold my breath looking for a Heli-Coil that size... Uberti thread is also #12-28. The Italian ppistol nipple used by Pietta is M6x0.75. That is larger than #12 . M6 is .236, tap drill about .206. #12 is .216, tap drill .180. If your original nipple is larger than that you would need a 1/4 inch thread.

It looks like the #12 is larger OD than the tap drill for M6, so your choiuces are limited to a 1/4 inch diaameter.
 
Which, as I said before, I contend won't work; this is a high pressure environment and using a 1/4x28 thread will leave incomplete threads - not a good combination. 5/16 is necessary, and it's unlikely there's enough clearance between a 5/16 thread nipple and the walls of the cylinder recess to fit a nipple wrench.
 
Holy sh*t! You are planning to weld on a Savage figure-eight revolver worth $5000 or $6000, more if a Navy Contract specimen!

I seriously suggest you rethink that project. Even with messed up nipple holes, the gun is worth a lot more than it would be if you reworked it to use Ruger nipples.

Jim
 
It's not the figure eight model, and it has no inspector's marks. I wish it was worth that much. They're selling for around $1000. I saw one for less at Cabelas in Maine recently.
I do know what you're saying, and fixing the nipple holes is all I'd do to alter/repair it.
 
Pohill

It is a simple fix, take it to a gunsmith that works on that type of thing.

Before I retired I had fixed 100’s of that type of thing. I no longer do.

It is most likely something that you could do yourself, but you still want
to have someone that is a black powder gunsmith look at it. A good
machinist is not aware of the things that are suitable and available to a
black powder gunsmith and what is proper and safe with firearms.

Some of the advice that you have gotten is good, most is not.
Take it to a professional black powder gunsmith, let them look at it, the
chances are that it is a simple fix.

I won’t post here how I would fix it because I would have to see it to say
and I am [ retired ] not going to be the one to fix it.

I would PM or landline you if you like and give you my experience with
such things but you will still need to take it to a professional black
powder gunsmith to look at it.


Good luck
Tinker2
 
Jim McCullogh, in Selma, Al. He can do the fix.....if interested, I will get you his ph. number.Works on new and old guns,builds 45-70-90 from scratch.This guy is the real deal.
 
I'd like to talk to him. Even though it's not a major "fix", I won't try it myself and I'd like to find someone who knows what they're doing.
Thanks.
 
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