Making a Sharps Barrel in my lathe.

So have set up for turning the O D to 1" at the muzzle and breech at 1.220" for 2" in from the end, this is for the tulip bit that has the receiver threads and then tapers down to 1.150". To set the barrel for taper turning, first the barrel is set to run on centre and the muzzle is turned to size required, 1", set up D T I in tool post and set say 0.04 mm on the breech end, then move to muzzle 1" area and move tailstock over till you get the same setting ,so it will cut strait from 1" back to nothing at 2.5" in from the breech end. The problem with turning a long shaft on the lathe is the middle bit want`s to acted like a wet noodle and chatter like poo, so to stop this I tried a spring on the tool post wrapped around the barrel, seam`s to have stop most of it. :cool:, Homebrew.357.
Attachment 31317, Muzzle turned to 1". Attachment 31318, Breech end set on centre, with drive. Attachment 31319, spring around barrel to stop chatter. Attachment 31320, I diden`t know if it would work, but it did, nice rats tail swarf coming of.

Nice curls peeling off there HB. :) I still am in awe of you making your action parts using your lathe like a mill.

Today I saw gunsmith John Hall's home made rifling machine. Very similar setup with chains and sprockets to what you rigged up on your lathe but his is a dedicated bed.

I`m bloody a mazed I even started it, starting to get myself into a corner because of the precision required , so will have the breech block and receiver hole done by a tool maker and as I don`t want to stuff things up, could any body lone me a 45-70 chamber reamer, I know there`s not much of this U S rifle stuff around in NZ, but you never know your luck. A rifle is a precision made tool, so have to get it right. Have to look in E Bay for one and then can sell it to someone else who`s having a go at making a Sharps. :thumbsup:,Homebrew.357.

Hi, Have got the barrel sorted, bore, .450" ,lapped, polished with 1200grt paper and O D tapered. Now will have to do some precision work so I don`t stuff things up, which means I`m getting a David Manson finishing chamber reamer for the chamber job , David says it will do the whole job of chambering being a straight case and it will do it 40-50 times, good reamers, he`s in the U S of A. Have ordered a block of 4140 for the receiver and when it comes will sort out getting the breech hole done. But don`t worry there`s plenty of backyard ,number 8 wire stuff to come yet.:thumbsup:,Homebrew.357.
Attachment 31590

@homebrew.357 stumbled over a web page you might be interested in the other day

Rifling attachment for lathe

Hi Shamus, Yer, there is a lot of ways of doing the same thing, and that looks good, but I had to work it out with what I had . I`v no mill or dividing head . Have just made a resizing die for the 45-70 cases , the slight tapered case is easy to machine ? and here I am looking for a chamber reamer in the US, it`s a no brainer, Homebrew.357.[ATTACH=CONFIG]31673,/ATTACH] My first reloads in 45-70, there`s are test ones.

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Originally Posted by homebrew.357

Hi Shamus, Yer, there is a lot of ways of doing the same thing, and that looks good, but I had to work it out with what I had . I`v no mill or dividing head . Have just made a resizing die for the 45-70 cases , the slight tapered case is easy to machine ? and here I am looking for a chamber reamer in the US, it`s a no brainer, Homebrew.357.[ATTACH=CONFIG]31673,/ATTACH] My first reloads in 45-70, there`s are test ones.

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Just thought you might like to see someone else's setup - many different ways to skin a cat eh! Really enjoying reading your posts :)

Hi, Yep, just set up and have cut the chamber in my Sharps barrel, I used a t/c form cutter for the job with a 6/7 degree slope into the rifling throat and no lead for these old timers. I used a new case and s a a m i 45-70 drawing to get it to a nice fit. The barrel was trued up both ends and light cuts nice and slowly did the job and a polish with 600grt paper I now have a Sharps 45-70 barrel . :thumbsup:, Homebrew.357.
Attachment 31831, Machining case rim recess in barrel. Attachment 31832, chafer sharp edges, done. Attachment 31833, The gun drill I made, (diden`t work), comeinhandy for this job. Attachment 31834, New 45-70 case fits in snugly . Attachment 31835, Loaded case fits in nicely .

Hi Guys, Now with a bit of work shop magic I have made my lathe an octagonal one, ( no tit pull Toby), made a ali disc to fit on my rifling register with eight holes for lock pin stop. The barrel is mounted on centres and locked from moving at the four jaw chuck end ,turning one in tail stock. I have set up two cutters at different heights in the tool post, cut using one then turn post for a lower or higher cut with the saddle wheel and just move lock pin around for the next one. Nice light cuts shaves in the flats, esy pesy, ;), Homebrew.357.
Attachment 31945, Octagonal, eight holes disc for lock pin. Attachment 31946, Two cutters at once for maybe a faster job.

I imagine you're using the feed mechanism to get a nice uninterrupted pass and not moving the carriage by hand? Doesn't seem to be much you can't do with that lathe... :)

Hi ishoot10s, No such luck mate, carn`t put the lathe in drive with the gear box locket up for cutting the octagonal , so yes I`m winding the saddle up and down, up and down, ext .ext,.
Say one flat takes 50 parses , only cuts from tail stock to chuck, so for eight flats that's 400 down and 400 up, yep I`v got arms like a gorilla , but nothing is easy .:roll:, Home brew.357.Attachment 31963, barrel clamped at chuck end on centre. Attachment 31964, muzzle end in turning centre and tail stock set over to cuts the flats.Attachment 31966,And the octagonal is SLOWLY coming on.

Holy shit!

I just get more and more impressed as this project progresses

Skills

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Originally Posted by ishoot10s

Holy shit!

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Double...nar fuk it...TRIPLE HOLY SHIT!!!!!!!!!