A rebarrel RB project

A buddy of mine wanted to get an old rolling block carbine back into the woods but the bad 43 cal barrel had to go. The gun had been reblued at some point and the internals were not molested at all from their original Remington factory fit & function, so it was a fine candidate for a 45-70 conversion. I told him to pick up a nice Ebay barrel at some point and he did just that with the purchase of a Ruger #3 45-70 barrel that was a mint factory take off. I told him the big RB receiver ring can "sleeve in" about any factory barrel from what ever. So, In this shot, what you see is the original square 12 TPI shank cut off and taped with a 15/16ths x 16 TPI internal thread. Once that was done, the Ruger .900 OD 16 TPI shank was turned down to .875 and then lathe turned treads to a hand fit zero wobble fit to the old shank bushing. The trick was to set the old shank extractor cut to clock right in the receiver while at the same time, the Ruger barrel sights clock at 12:o clock over the receiver. Once the proper bushing position was set and marked, The bushing gets JB welded to that exact spot.
https://i.imgur.com/gAPf3Sxl.jpg

Then the shank gets the breach block clearance cut and extractor cut via the original shank cut position into the Ruger steel.
https://i.imgur.com/4oy1DJhl.jpg

Here the extractor has been mig welded to its needed extra length after the original chamber was deepened to perfect head space. The cold blue still shows the slight face line of the Ruger barrel in the core of the original shank face.
https://i.imgur.com/Ep9W3ngh.jpg

A 1976 made Ruger tube....
https://i.imgur.com/woKERQil.jpg
https://i.imgur.com/6UTMNyul.jpg
https://i.imgur.com/YcVZGsYl.jpg

Nice work.

Looks great. A good job.

Very nice work. I really like it!

Like8-)

I just love projects like this. Congratulations ! Do you do this work for a living or a hobby ?

Very neat work! Thanks for the pics and the play by play.


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Thanks for all the good comments. As for am I a open for business gunsmith, no. However, I did go to PA Gunsmithing school 79-81 and had a full service GS for 14 years. Now when I retired to TN after 25 years in NY state corrections, I was ready to open a GS business 9 years ago. When I found out that Barrack changed the ITAR rules to mandate all gunsmiths to require an annual $2300 ITAR permit, I canceled the TN tax number and business license (lost $430). Never again will I trust the Fed Gov no matter who's A** sits in the WH. I'm a hobbyist with no Fed licensing of any kind.
Thanks for asking, Shawlerbrook.

good job. I like it when a plan comes together.

Pretty work. Like those old rollers. Had a couple over the years.

Good job on that Roller - 45-70 is a good caliber for a roller

Nice job, always wanted a roller. I recall as a kid in the 50 Kleins of Chicago had Egyptian roller for under $20. Tim

As we have several 43 Rollers, I like the fine way you put that one together. Well done !

Very nice