29. September 2021 kl. 4:13:15
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91
Patronvåpen / Re: 9,3x57R .360 hylser alternativer?
« Last post by Rustrøyk on 13. August 2021 kl. 23:58:11 »
9.3x72R kjøpte jeg for ikke lenge siden på "hjemmeladning.no"  RWS hylser med vanlig boxer lomme.
92
Kammerlader / Re: Swedish M1851 Kammerlader remaking a nipple.
« Last post by Cap'n Redneck on 13. August 2021 kl. 23:43:41 »
(I'm also a replica Whitworth owner.)
The copper disc at the bottom of the nipple hole does not limit the amount of erosion in the flashhole of the nipple, it does however keep the hot gases from eroding the male threads of the nipple and the female threads of the gun.  There are several instances of nipple-threads that have been eroded so badly that the nipple itself has been shot out of the gun...
The beryllium-bronze nipples have so far been the best option for "high-power" blackpowder rifle shooters.
I believe I've read / heard that platinum lined nipples are available again, but at a price that is abhorrent for us casual shooters...
93
Kammerlader / Re: Swedish M1851 Kammerlader remaking a nipple.
« Last post by ironoxide on 13. August 2021 kl. 20:56:04 »
Wow, I never realised the extent of erosion in high pressure muzzleloaders like the Whitworth.

Regarding the copper disk Thanks to your photo I understand it now. Thanks. :-)

Interestingly when I was cleaning the nipple hole on my M1851 there was "strange" green stuff there. The whole breech is of course made of steel, but that green stuff looked like corrosion that you get on copper. Also the nipple hole is pretty shallow. About 4 threads. I wonder if I should try to pick on the bottom of that hole with a dental pick. Perhaps there is an original copper disc(just corroded) there like what you've shown on your Whitworth.

I'll change ithe nipple design when I'm making a longer one.

It is surprising that copper limits the erosion amount. Have you ever tried a bronze nipple(without the copper disk) in your Whitworth? I would be interested in finding out if bronze is resistant to it. BTW I heard in some original high end guns they used platinum lined nipples to limit erosion

Regarding the barrel pin, I think it'll be fine. I managed to get few test shots before the sunset today and it felt solid (with a light load of 60grains of 2f for a start).
94
Kammerlader / Re: Swedish M1851 Kammerlader remaking a nipple.
« Last post by Øyvind F. on 13. August 2021 kl. 19:24:39 »
Nice job! But note that the book says the copper disc was placed under the nipple. I guess the main purpose was to prevent erosion of the nipple and especially the flash hole. I have used the same concept in my .451" Whitworth and it greatly enhances nipple life. Without the disc it only takes a few shots before the nipple is ruined. You won't experience the same kind of erosion in your kammerlader though, the Whitworth is a whole different story.

Here is the copper disc in my Whitworth:


New unfired Whitworth nipple to the left and one which is fired 28 times to the right:


Pictures from this thread: https://forum.svartkrutt.net/index.php?topic=10812.0
95
Kammerlader / Re: Swedish M1851 Kammerlader remaking a nipple.
« Last post by ironoxide on 13. August 2021 kl. 18:45:04 »
The length of the nipple is related to the geometry of the hammer. With this nipple-length the hammer on my gun hits the nipple at an approximate 90 degrees angle. Now you're going to find out if a 12 mm nipple works just as well.  ;)

It works :-)

However, I found out very quickly why people behind sixgun.se decide on 16mm length. With my nipple that protrudes 12mm it looks like it is almost impossible to put the cap on after closing the breech (from the bottom). That would be a safe way of doing it in modern times.

An easy way is to do it the original way of putting the nipple on while the breech is open. However, it makes my "safety sense" a bit uneasy to put a nipple on a loaded chamber, cock the hammer and then close it... I'll see how it goes once I take the gun to the range and if it is really difficult I'll make a longer one.

Here are few pictures of the nipple. As you can see I decided to try the copper disc/washer. An 8x12x1mm washer fits ideally :-) I knurled the cone part of the nipple not to make it pretty, but I happened to cut it and then discover caps were falling off. Knurling took care of it. Now caps are very secure.

Also few things about my rifle. From the book I learned how the click leather is supposed to work on M1851. Unfortunately my gun is missing the brass/bronze nuts. Instead someone very precisely glued in walnut pegs :-(

Also as a part of the whole sporterising process the same person glued in a piece of walnut into the cavity that used to contain the barrel band spring. There is no barrel band and the barrel is held in place by what looks like a home made nail (kinda squarish). I have to think about all of this before I shoot the gun. The whole thing feels surprisingly secure.If I decide to shoot it in this configuration I'll start with low charges and see if there is no extra stress on the stock where the nail is. In future I'll definitely not be cutting out the inlays this other person did, but I may make a barrel band with an integrated pin just to make it more secure.

Here are few pictures of the nipple I made, the copper washer, and the chamber opened after first cap was popped.










96
Patronvåpen / 9,3x57R .360 hylser alternativer?
« Last post by TMB on 13. August 2021 kl. 13:12:59 »
Tiden er kommet for å lufte den gode gamle fågelstutsaren i skapet.
Jeg har kun hylser med store berdan hetter, men fra tidligere prosjekter har en ett knippe 38-55 hylser som ser ut til å passe nesten perfekt, foruten at de er 5mm for korte og at rimmen må slipes pent ned en tier. Vet at det er to lengder 38-55 hylser der ute, men jeg mins jeg fikk tak i de lengste sist. (formet .32-40 av de)
30.30 er jo alt for korte å bruke til noe så langt. Er det mulig å oppdrive tomhylser i 9,3x72R?


Kuletang for prosjektet har jeg ikke ennå. Så finnes jo en mulighet for å gå for noen lange kuler og heller la smørerillene være eksponert.
Hvor mye friflukt vil være mulig å tollere i ei svartkruttbørse?

Forslag mottas med takk.

97
Kammerlader / Re: Swedish M1851 Kammerlader remaking a nipple.
« Last post by Torgeir on 13. August 2021 kl. 9:18:02 »
The length of the nipple is related to the geometry of the hammer. With this nipple-length the hammer on my gun hits the nipple at an approximate 90 degrees angle. Now you're going to find out if a 12 mm nipple works just as well.  ;)
98
Kammerlader / Re: Swedish M1851 Kammerlader remaking a nipple.
« Last post by ironoxide on 12. August 2021 kl. 22:42:00 »
This is the nipple sold by Sixgun.se. It takes rws 1081 caps and is 16 mm long minus threads. It is great quality.

Thanks for the picture. Interesting how long it is. Do you think it has to be that long? I'm half way done with my nipple and as the upper part of the original is missing I'm currently making it as 12mm minus the threads.

I wonder how did they decide on such a long design

BTW, I've sent you a PM :-)
99
Kammerlader / Re: Swedish M1851 Kammerlader remaking a nipple.
« Last post by Torgeir on 12. August 2021 kl. 20:43:52 »
This is the nipple sold by Sixgun.se. It takes rws 1081 caps and is 16 mm long minus threads. It is great quality.
100
Kammerlader / Re: Swedish M1851 Kammerlader remaking a nipple.
« Last post by Øyvind F. on 12. August 2021 kl. 17:22:23 »
You're right about the copper disc, I was thinking about Norwegian kammerlader rifles. I don't know whether the Swedish rifles were actually equipped with this disc though. They may have found it to be redundant.
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