Help figuring out nipple replacement
- Thread starter jbrow397
- Start date
I make an impression of the threads by twisting in a tapered hardwood peg. I can then use a thread gauge to determine the thread pitch. Measuring the peg's diameter will give an idea of the diameter of the nipple. Won't be precise, but will give an idea of the diameter. If I am making a nipple, I start threading oversize until the piece will screw into the nipple seat.
The gun looks European; may well be metric.
Another option is to try a series of taps, hoping that you find one that fits.
The gun looks European; may well be metric.
Another option is to try a series of taps, hoping that you find one that fits.
Most older English-made nipples are 5/16th x 18tpi, later they changed the pitch to a slightly finer 20tpi.
Metric? Who knows.
Given the marked lack of any other detail from your end of the line - proof marks, that kind of thing, although we can see that it is a handgun of some kind - that's about all that we can do to help you.
Metric? Who knows.
Given the marked lack of any other detail from your end of the line - proof marks, that kind of thing, although we can see that it is a handgun of some kind - that's about all that we can do to help you.
Most European nipples in the .250 range (diameter) that I have measured were 26 tpi. I will check my taps later but I think that corresponds to a metric pitch of .75 mm. I also use Tiriaq's method of a slightly tapered peg to determine the thread pitch
cheers mooncoon
- Location
- vancouver island
The thread is too fine for the 5/16x18 Enfield musket nipple. Looks very like the 7x1.0 metric on a Austrian made target piece I have. If you can find a metric bolt with that thread and it will fit there is your answer. Similarly, just for luck try a 1/4x28 bolt as well. Cheers
go buy a thread pitch gauge set, we use them all the time at work. don't be afraid to grind it thinner to fit inside to get proper engagement. They aren't that expensive and it will give you the proper pitch/count.
