usajon
.30 Stingray
Posts: 326
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Post by usajon on Sept 29, 2012 10:13:53 GMT -5
how hard ($$$) is it to make a sine bar rifling machine for revolvers..after extensive conversations with all known USA gunsmiths there's a 1.5 on year wait on a revolver barrel recaliber bore job.
that's insane in any field of machine work like this.
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Post by humphrey on Sept 29, 2012 10:48:36 GMT -5
As a stand alone item or as an attachment for a lathe?
Either way it will be relatively time consuming.
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steve
.375 Atomic
Posts: 1,505
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Post by steve on Sept 29, 2012 11:03:24 GMT -5
Most gunsmiths send barrels out to be rebored. Have you tried Jack Huntington? (530)268-6877 I know he rebores barrels. Last time I was at his shop I asked about reboring a S&W N frame barrel to 500. He said no problem, he showed me the machine he does it on and explained how it worked. His turn around time is pretty quick.
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usajon
.30 Stingray
Posts: 326
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Post by usajon on Sept 29, 2012 12:26:28 GMT -5
Most gunsmiths send barrels out to be rebored. Have you tried Jack Huntington? (530)268-6877 I know he rebores barrels. Last time I was at his shop I asked about reboring a S&W N frame barrel to 500. He said no problem, he showed me the machine he does it on and explained how it worked. His turn around time is pretty quick. yes remember revolver. short barrel/not riflel rebore/not reline I called aprox 10 top gunsmiths in the USA Jack makes barrels for revolvers, he said he could build mine for a rebore he told me 4 days ago he sends them out/takes 1.5 years on one he just go back. Hamilton Bowen told me the same thing, sends them to the same guy. 1.5 years turn around. |
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usajon
.30 Stingray
Posts: 326
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Post by usajon on Sept 29, 2012 12:31:03 GMT -5
As a stand alone item or as an attachment for a lathe? Either way it will be relatively time consuming. well,i have tryed to purchase such a machine and there are none to be had..old P&W's from 1800's... are you a machinist ? |
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Post by boxhead on Sept 29, 2012 15:01:16 GMT -5
I have a number of rebores, both rifle and sixgun and have one out via Alan Harton as I type. Al Siegrist and Cliff LaBounty have done mine and the current one is in Al's shop. Make no mistake, from these makers (Cliff having sold his shop to Jim Dubell) they do shoot match grade. I have been more than pleased with all of my rebores. At most my rebores have taken 5 months though they are done in "lots" of caliber so I may have been lucky with the 6 done to date. I have also received them within 2 months. A great opton for both the right revolvers and rifles.
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Post by humphrey on Sept 29, 2012 17:18:28 GMT -5
As a stand alone item or as an attachment for a lathe? Either way it will be relatively time consuming. well,i have tryed to purchase such a machine and there are none to be had..old P&W's from 1800's... are you a machinist ? Not by trade. There are cheap ways to do it, that produce cheap work and expensive ways to produce high quality work. Of course there are none to be had. We are talking machines that so few are needed that each one was custom built at some point. As well its outdated obsolete technology by well over 100 years. The major smiths if using sine bar are probably using Pratt and Whitney machines or maybe a Diamond Tool machine from the 1800's that have been refurbished and updated. The sine bar rifling machine is a giant shaper with a work table or a tooling head that rotates as the shaper makes a pass. Its like a powered chisel. So your either building a shaper. Building an attachment for a shaper. Or building an attachment for something else so it functions like a shaper. Finding a shaper is not easy as they were replaced by the vertical mill for the vast majority of the work they could do decades ago. You could also build one pretty easily (relative term) out of an old lathe, by changing the gearing between the main shaft and the main screw so as to create an excessive feed rate. Tooling could then be mounted on the saddle and would feed the 30 so inches to one turn of the chuck you would need to cut the rifling. You'd have to apply power to the main shaft at a different speed then normal to maintain control. Or better yet power the main screw. How long the unit last is questionable, but it would get the work done. You'd have to make multiple passes for each groove as in 0.0001 cut at a pass. Building the same concept from scratch wouldn't be hard either just more time consuming and resource demanding. Ultimately button rifling took over for a reason. Its faster and requires less setup time. It is also available to buy if you want to spend the money. Probally the easiest method for a small/home operation www.youtube.com/watch?v=piaZjbdu4Ok&feature=fvwrelAnother option www.youtube.com/watch?v=8tiG2HHMcxE&feature=related |
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usajon
.30 Stingray
Posts: 326
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Post by usajon on Oct 1, 2012 10:49:16 GMT -5
I have a number of rebores, both rifle and sixgun and have one out via Alan Harton as I type. Al Siegrist and Cliff LaBounty have done mine and the current one is in Al's shop. Make no mistake, from these makers (Cliff having sold his shop to Jim Dubell) they do shoot match grade. I have been more than pleased with all of my rebores. At most my rebores have taken 5 months though they are done in "lots" of caliber so I may have been lucky with the 6 done to date. I have also received them within 2 months. A great opton for both the right revolvers and rifles. just got off the phone with Al Siegrist he states he collects the barrels to rebore, then does a bunch.He has a bunch now. most are rebore to 44/10mm/41 he said he does not do many 45 calibers as most single actions are come in 45.He said he has never done a Herters barrel, and really was not familer with Herters,would have to make jigs, a I told him a herters barrel is smaller outside dia. then a Colt, he then stated it may not be able to bored to 45 , stated it would be @ least 6 months.. also all he wants is the barrel...so I would have to have the barrel removed, sent to be rebored, have a gunsmith make a new force cone cut, mod the 44 cylinder to 45 , reassembly, make sure cylinder gap is correct...looks like 100% gunsmith job. |
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Post by Seasons44 on Oct 1, 2012 20:26:40 GMT -5
Ok maybe sombody could explain what are the benifits of reboreing a barrel vs changing the barrel to a new blank?
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usajon
.30 Stingray
Posts: 326
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Post by usajon on Oct 2, 2012 15:36:06 GMT -5
I had wanted to keep the original barrel/as it has date/factory stamp marks.changing the barrel is normal process. A newer barrel of any length you want. I may go in that direction and send the original barrel out/that barrel will take some time to be mod'd.
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Post by humphrey on Oct 3, 2012 0:06:19 GMT -5
what herters?
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usajon
.30 Stingray
Posts: 326
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Post by usajon on Oct 3, 2012 0:46:41 GMT -5
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