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Very Hot Topic (More than 25 Replies) Custom Barrel Makers? (Read 35556 times)
Paul_F.
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Re: Custom Barrel Makers?
Reply #15 - Jul 11th, 2008 at 1:19pm
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You might be on to something there...

But naturally, each half would have to have it's own rifle! 

Paul F.
  
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Jimofatl
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Re: Custom Barrel Makers?
Reply #16 - Jul 11th, 2008 at 1:58pm
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Thank, Dave, Joe and SDave.................
That is what I was looking for. Now I might have more intelligent questions when I phone Ron. 
I appreciate all the responses.......................JimK
  
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tim_s
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Re: Custom Barrel Makers?
Reply #17 - Jul 11th, 2008 at 2:17pm
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Without getting into other aspects of this conversation (I'll play "fly on the wall" for most of it, even though I have my own opinions...).

There is a third way to measure bore dimensions, but it's not one that any barrel maker I'm aware of uses.  Laser bore-gage.  Read about it on a professional machinist site, and naturally my very first thought was "hey, you could measure rifle barrels with one of those!".  Accurate to 50 millionths (in a temperture controlled environment, of course). That's half a ten-thousandth.
The discussion also mentioned the price; several hundred thousand dollars... which is why it's unlikely any barrel maker is going to be running one in a temperture controlled metrology room any time soon.

Be darn nice to borrow some time on one, in that metrology lab though!  

Sorry for the interruption.... please continue Smiley

Paul F.


I have actually heard of these before, and shudder to think about cost. I suppose I should have stipulated methodology that is available to production shops.
   Truth be known, while there seems to be a current mania as to precise dimension, it probably has lots more to do with uniformaty in a single piece, final finnish of bore, rather than hard fast dimension.
  One of the reasons for my querry and resulting commentary was directed at the manufacture of stainless bbl's in particular. Stainless, in particular 416, is somewhat elastic and why often there tends to be more final bore varience than folks realize. Some makers actually play with the sulfer content of each batch ordered and as such that run of pruduction is subject to  all new tooling changes, how it cuts, how it finnishes, etc.etc. That's why, if You'll indulge me further, in the benchrest community, if you hear that a certain maker is turning out some "killers" from a certain batch of steel, you'd better get a couple because the next lot might be only fair. One of the things I've come to learn about this stuff is there is a about as much art as science in that business IMHO. Sorry to ramble on.
  

“ I don’t have to be faster than the bear, I just have to be faster than you”
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J.D.Steele
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Re: Custom Barrel Makers?
Reply #18 - Jul 11th, 2008 at 3:35pm
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I too would be curious to know the details of whether Ron's bbls are tapered in their bores or grooves or both, and the details of his methodology in achieving his results. I don't doubt his dimensional achievements, I'm just curious about the details of how he does it.

As I understand it, most custom barrelmakers first drill, then ream, then lap the bore; apparently this is where some makers achieve their taper. The actual rifling operation usually removes so little metal with each pass that it's possible to maintain a very smooth surface finish if the tool is ground & polished  properly, but it's unclear to me how the rifling operation itself can produce a tapered bore.

However I recall another thread on this forum in which the tapered bore of the 577/450 Martini service rifle was described. I can only assume that these supposedly mass-produced barrels did not have their bores hand-lapped to the required taper since that would appear to be entirely too labor-intensive, but rather it seems more probable to me that the taper was achieved mechanically in some fashion.

FYI many if not all factory Pedersoli barrels have tapered bores, I've heard that they are broached. Also an outfit called Blackstar (I believe) has advertised barrels with tapered bores; these were advertised as being micro-honed (or some such buzzword) to their final super-smooth tapered finish. I can personally testify to the Pedersolis' usually superb accuracy but have never examined a Blackstar barrel.
Regards, Joe
  
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tim_s
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Re: Custom Barrel Makers?
Reply #19 - Jul 11th, 2008 at 7:00pm
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Joe, well..... not quite, as it applies to "most" match barrels that is. Most match barrels after they are rifled, either cut or button, are then lapped, usually corse lapped then final lapped and it is typically in these last steps where we are getting our taper. It is primarilly taper in the bore diameter since the lapping seems to take metal out of the bore verses groove at about a 3-1 ratio. A current phenomonen is for several of the .22 smiths to fool around with lapping to either take taper out or put a bit more in or make the taper more progressive. This all depends on how tight or loose the bore was when it left the maker, etc., etc. More than a few barrels are messed up this way and opinions vary greatly as to what works best.
     Now.... this all being said I got more than a little curious and figured let me call the guy and ask  a few questions. Very nice fellow, we had a long talk about all maner of .22 barrel-ammo topics, he shared lots of stuff about his capability. He did mention that he can hold a few usually hold a few tenths and that his taper comes more from the type of tool and how it cuts since it seems he does not lapp. To tell you the truth, I'd love to borescope one of his stainless barrels to see how the finish is since it is so tough not to tear 416 even with small cuts. I found it particularly interesting that he is willing to cut lands of different width and grooves of different depth. This is a major debate right now as to bullet deformation and engraving as well as number of grooves, all relating to wind sensitivity. I hope some of this answeres a couple questions.
  By the way thanks for starting the whole thread, I learned some great new stuff today.
  

“ I don’t have to be faster than the bear, I just have to be faster than you”
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Dave_Carpenter
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Re: Custom Barrel Makers?
Reply #20 - Jul 11th, 2008 at 9:22pm
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As we all know the barrel maker can do his best but if the barrel is not installed or chambered by someone who understands the game a lot can be lost. 

Two things about a Ron Smith barrel that impressed me.  One, when the barrel was mounted between the headstock and the cat head and both ends were indicated (plug gauge in bore) to zero runout, the lathe then run at high-speed the bore appeared to be motionless, a straighter bore I have never seen.  The second thing is with a button tip on a cleaning  rod and patch in the bore I would be hard pressed to tell you if I was cleaning a Pope or a Smith barrel.  If you have ever cleaned a Pope barrel you know what I’m talking about. 
  
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DoubleD
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Re: Custom Barrel Makers?
Reply #21 - Jul 11th, 2008 at 11:45pm
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I don't have access to my reference book right now to verify this, but if memory serves me, the bore and its  taper in the MH barrel is formed by forging on a mandrel.
  

Douglas, Ret.
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DonH
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Re: Custom Barrel Makers?
Reply #22 - Jul 12th, 2008 at 6:35am
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Another thing that might be of interest, I know of a 38-72 H.M. Pope barrel and it is straight twist, not gain.  

You might get a barrel from Pope faster than Boots Obermeyer  Roll Eyes


I have heard of Boots being slow. A friend called Boots within the last year about getting a .30 barrel and was told by Mr. Obermeyer that he had been tied up for some time making M14 barrel for dear old uncle. Those guys just about all have to rely on their "bread and butter" work for cash flow. Guess we should be happy Marines can be confident their M14s will shoot straight.
  
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J.D.Steele
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Re: Custom Barrel Makers?
Reply #23 - Jul 12th, 2008 at 9:23am
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Boots has been doing primarily govt work for over 40 yrs now, he makes lots of target bbls plus, believe it or not, many 20mm & 37mm cannon bbls. He told me he was a cast-iron junkie with over 80 machines in his shop. I can only dream.
Regards, Joe
  
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Paul_F.
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Re: Custom Barrel Makers?
Reply #24 - Jul 12th, 2008 at 9:55am
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Obermeyer barrels have always had a sterling reputation in Service Rifle (M1 and M14 era) and Palma shooting.

And they've always been tough to get. As JD Steele mentioned, he's been doing Government contracts for decades, and only gets time now and then for non-contract production of barrels.

Best shooting M-1A I've ever seen had an Obermeyer barrel on it... Sadly, it wasn't mine!

Paul F.
  
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Jimofatl
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Re: Custom Barrel Makers?
Reply #25 - Jul 12th, 2008 at 5:26pm
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So what is the general consensus on Chrom Moly vs. SS barrels.
Is one any more accurate than the other. I have heard SS is easier to work with and have other advantages. 
I will stick with the Chrom Moly since I am a traditionalist, like a 'blued' finish and am using only cast alloys (no jacketed bullets). 
I am just curious. .............................JimK
  
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Dave_Carpenter
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Re: Custom Barrel Makers?
Reply #26 - Jul 12th, 2008 at 7:08pm
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Jimofatl wrote on Jul 12th, 2008 at 5:26pm:
So what is the general consensus on Chrom Moly vs. SS barrels.
Is one any more accurate than the other. I have heard SS is easier to work with and have other advantages. 
I will stick with the Chrom Moly since I am a traditionalist, like a 'blued' finish and am using only cast alloys (no jacketed bullets). 
I am just curious. .............................JimK



+1.... Ron Smith tried to talk me into a SS barrel, told him if he could rust blue it go ahead.
  
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Brent
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Re: Custom Barrel Makers?
Reply #27 - Jul 12th, 2008 at 8:49pm
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Don,
If you think that is slow, I am still waiting on a Badger barrel going on 3 yrs now, and I hear I"m not even close to the winner in that department.   

FWIW, I got the distinct impression from Lilja that they think Stainless is best for their .22 barrels.  I bought a Chromoly barrel anyway and turned it into a liner.  It shoots

Brent
  
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J.D.Steele
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Re: Custom Barrel Makers?
Reply #28 - Jul 12th, 2008 at 11:00pm
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The consensus appears to be that the Benchrest crowd uses stainless almost exclusively for both CF & RF while many military and Highpower shooters seem to prefer CM for their CF shooting. The long range (1000 yds & over) shooters that I know seem to prefer stainless. Schuetzen and BPCR shooters almost always choose CM.

The use of a particular material or a particular rifling method doesn't guarantee anything, except that the barrel is made that particulat way. 
Any honest smith or barrelmaker will readily admit that there are no guarantees as to accuracy. However IMO there are some things that can be done to help the odds along a bit, and the two most important IMO are to use the best quality materials that are affordable along with the best quality workmanship that's affordable.

For suggestions as to 'the best', check the equipment lists of the record-holders in your preferred disclipline. Don't worry about the majority of the shooters, check only the record-holders. And check plenty of 'em, too, because you'll find that there is more than one 'best' in many areas.

For instance I've had a wide range of accuracy results from many of the more prominent barrelmakers like Douglas & Shilen & Badger, which maybe is to be expected from any mass-produced item. But I've also had somewhat spotty results from some of the smaller custom makers as well, such as Hart, K&P, Kreiger & others. It's frequently somewhat of a crap-shoot, and most any dedicated Benchrest shooter will tell you quite quickly that he'll discard more barrels than he'll actually campaign in any given time period.

I won't offer any opinions about smiths except to say that anyone can find someone to say something bad about anyone else, so I don't pay much attention to one unfortunate instance or one negative opinion necessarily. However, kinda like seeking a new doctor, it's A Good Thing to get more than one opinion about smiths. I know one prominent single shot smith whom I would never trust with anything of mine, yet he seems to enjoy quite a following in some circles. Again, I suggest that you look at the smiths of the record-holders' rifles.
Good luck, Joe
  
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DonH
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Re: Custom Barrel Makers?
Reply #29 - Jul 13th, 2008 at 6:33am
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Boots has been doing primarily govt work for over 40 yrs now, he makes lots of target bbls plus, believe it or not, many 20mm & 37mm cannon bbls. He told me he was a cast-iron junkie with over 80 machines in his shop. I can only dream.
Regards, Joe


I have a friend across town, a former HP and Army team shooter, who occassionally regales me with tales from spending time around the Obermeyer shop while living for a time in Wisconsin. Among the people he met who were working or just hanging around the shop are Jack Kreiger and Ernie Stallman. Guess one would not go wrong learning about barrel making at Boots' shop.

Another friend is an accomplished HP shooter and won't use any but an Obermeyer barrel unless he just can't get one. Those barrels have helped this gent to three distinguished badges, one each for M1, M14 and AR15..
  
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