Luger barrel question
First, I will announce I am not a gunsmith and I would NOT undertake this myself.
Has anyone successfully bored-out an existing full-thickness (e.g., NOT the "pencil" variety) .30 luger barrel to 9mm? Is this possible? If so, any details shared would be appreciated. Thanks. |
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If you mean reline to 9mm, yes, there are a couple companies who do it. Do a Search for 'reline'. :) Gerry Tomek [G.T.] might be interested in such a project, too. :rolleyes: But it's so relatively easy to just swap out the 7.65 bbl to a 9mm that it's not really economical. :thumbup: |
issues with reboring??
Hi Guys, I think it could be done, my concern would be the stress involved with pushing a rifling button thru for the new lands and grooves?? It is usually performed when the blank is full size...But, Rich is 100% correct, with all the 9mm barrels still available, it would most likely be a counter productive task... You could almost buy the blanks and make the barrels cheaper... :jumper:.. best to all, til...lat'r....GT:cheers:
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I wonder...Maybe a threaded ram, to turn the button while you press it??? :rolleyes: |
push and squeeze.....
Hi Rich, I dunno?? I just know it takes a lot to push something bigger thru something smaller... :eek:.... most of my experiences ended with stuck like welded results! I though one might mount a threaded fixture in a large, mostly linier thrust bearing, and let it, the barrel, turn as the button goes thru! :jumper:..... I have been eyeing the button for sale on ebay.... Project number 9999! .... best to all,til...lat'r....GT....:cheers:
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Thanks for your collective insights. As I mentioned, I am not a gunsmith – kindly excuse my inappropriate use/choice of terminology: re-bore, re-line, etc. However, it seems most everyone understood the general nature of my question.
The thought process behind the question involved a very nice, sentimentally-valuable 7.65mm luger with a relatively worn-out barrel bore. In the interest of keeping the gun’s components as original to each other as possible while updating it to shoot the more economical 9x19mm luger cartridge, I was inquiring whether the 7.65mm barrel had enough “meat” on it to undergo the process. The car buffs in the group might appreciate the analogous comparison to the rebuilding of an original numbers matching engine (e.g., barrel) with worn cylinders (e.g., bore) rather than installing a completely different engine (e.g., replacement barrel) into a classic car (e.g., luger). This does not touch upon the obvious added differences in bluing and patina one would encounter with a mis-matched or replacement barrel. Judging from the collective replies, it sounds as though this may be a possibility in the right hands. Does anyone know of a particularly competent gunsmith who would be skilled/experienced at such an undertaking? Thanks again for the collective insights. |
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There are many others I'm sure, and the Luger barrel is so short that it is [probably] a quick & easy job. You might not be aware that the 30 cal barrel is ~1/8" shorter than the 9mm barrel. Not a big deal, but re-boring yours to 9mm does destroy any 'collector' value. You will also find comments here that even sewer-pipe Luger barrels have been found to shoot remarkably well, so re-lining/re-boring may not be necessary, if you only want it to shoot acceptably. I would shoot it before doing anything that can not be reversed. $.02 |
94S, I agree that to keep a luger matching, including the barrel, and original blue, that relining back to 7.65P or 9mmP, may be the best approach. If someone does want to try the reboreing project, I have PLENTY of shot-out 7.65mm barrels available @$10 each or $15 for exc outside blue. I'd recomment the Broom Closet for relining. TH
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I own a 1921 Alphabet Luger in 30 Luger caliber. The bore looks like a sewer pipe, most likely due to corrosive primers, and not being cleaned correctly. Despite it's looks, it shoots wonderfully accurate. It really surprised me, because I had considered a barrel change many years ago. Now I just pay it no attention, and shoot away. It is a bit harder to clean, but I am not near as OCD about cleaning this barrel. Your choice, but I would not change anything unless it throws the bullets out sideways. |
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A rifling groove of only .004"-.005" would be easy. Making a 'rotating nut' with a twist of 1 in 10" might require some thought... :p |
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Redman did absolutely excellent seamless work for me on a P08 and a C96 years ago but left a query unanswered recently about another P08 reline.
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Test-firing the pistol first to determine its accuracy in its current state is entirely on-point. --Dwight |
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I got the impression that he had plenty of .30 Broom relines to do. it took over a month to get mine back. Any other work or change likely reduces the number of "standard" Broom relines he can do. May be different now. Probably best to write him a letter and enclose an SASE, he is an analog kind of guy. ;) |
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1994Stoeger:
I have had both .30 lugers relined to 9mm (2 of them) and two C96's relined to 9mm by "The Broom Closet" also known as "The Gun Rack". I have talked with Tom (owner) and they do a great job on the relines AND bluing. I picked up a .30 luger locally that was basically bare metal. Sent it down and Tom relined to 9mm and blued - all for about 180.00 (about 6 years ago). Excellent work, fast turn around and knowledgeable. 9154 NW CR 285, Starke, FL, 32019. Phone 1-904-964-5053 |
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button rifling
Hi Rich, I guess for a better term, it most likely swages its way thru the bore? As I see absolutely no provisions for chip clearance... Just an excellent example of brute force overcoming resistance?.... I've seen sharp tools cut several thousands effortlessly, and by the same token, seen a .001" or .002" upset hold tons of force?... :eek:...
As for the button rifling process, It looks insanely easy to do.... but, also, not cost effective as a cheap "button" is going to be a couple of hundred all by it's self... I'm challenged enough with just threading the tenon... :thumbup:... Best to you Rich, til....lat'r....GT......:cheers: |
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