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Normal Topic Reboring (Read 3439 times)
mitch270
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Reboring
Feb 23rd, 2014 at 6:22pm
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Hey guys, just wondering if any NZ gunsmiths rebore barrels? It seems that whenever people on here want to change to a different cartridge they just buy a new trueflite barrel. I'm thinking or changing my savage 99 from 308 to 338 fed, but doubt that anyone would stock barrels for 99's, hence the question.
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Nor-West
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Re: Reboring
Reply #1 - Feb 23rd, 2014 at 6:26pm
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The guy at Wakefield is getting set up for it I understand. PM to Armed Tramper he's in the know.
  

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stug
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Re: Reboring
Reply #2 - Feb 23rd, 2014 at 7:03pm
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I think it is only cut rifled barrels that can actually be re-bored. A lot of factory barrels are hammer forged. Trueflite barrels are button rifled.
  
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Walker
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Re: Reboring
Reply #3 - Feb 23rd, 2014 at 9:50pm
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Re cutting has gone the way of the dodo now as its cheaper to just get a new barrel. Hammer or buttoned rifles have 'work' hardened bores that wear tooling very fast.
  

Just do it
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Flintlock
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Re: Reboring
Reply #4 - Feb 24th, 2014 at 9:38am
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The only time to rebore is to get an old classic rifle with a worn out barrel shooting again  . A mate got a 303 Rigby bored to 303/8mm to get it going again , this was because the barrel was  ribbed / engraved and fitted with express sights , it went to the USA for the work to be done and cost more than a new barrel
  

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6.5x55bjai
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Re: Reboring
Reply #5 - Feb 24th, 2014 at 10:02am
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And it was probably more common to re-sleeve if there was sufficient meat in the original barrel.
  
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Carlsen Highway
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Re: Reboring
Reply #6 - Feb 24th, 2014 at 5:28pm
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And yet in the States reboring barrels is fairly common and quite cheap.  Much cheaper than a new barrel and fitting.
Quite trendy lately to rebore worn Winchester .30/30's out to .38/55.
I know you can get it done in Australia as well, cheaper than a rebarrel.

It sounds like it's more a case of Kiwi's overvaluing again.
  
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mitch270
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Re: Reboring
Reply #7 - Feb 24th, 2014 at 7:00pm
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Carlsen Highway wrote on Feb 24th, 2014 at 5:28pm:
And yet in the States reboring barrels is fairly common and quite cheap.  Much cheaper than a new barrel and fitting.
Quite trendy lately to rebore worn Winchester .30/30's out to .38/55.
I know you can get it done in Australia as well, cheaper than a rebarrel.

It sounds like it's more a case of Kiwi's overvaluing again.

The reason I asked was because I'd seen that it's quite popular and reasonably priced in the states. But as per usual  in old Nz we're 10 years behind the rest of the world, and when things finally arrive here the cost you an arm, a leg and a left testicle.
  
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Carlsen Highway
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Re: Reboring
Reply #8 - Feb 24th, 2014 at 10:28pm
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I agree. I don't know of anyone that has had it done in NZ, although there are people who could do it if they wanted. Maybe you could try talking Hugh at Stager Sports into it.
  
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Flintlock
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Re: Reboring
Reply #9 - Feb 25th, 2014 at 10:37am
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Brownells sell barrel liners and drills etc but only for low power cf and 22 and 17 rim fire
  

Shooting is the most fun you can legally have with your clothes on .
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Re: Reboring
Reply #10 - Feb 25th, 2014 at 11:03am
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I have considered doing this myself, a decent centre lathe, dedicated to this purpose, a second lathe, a milling machine, a centre grinder, and a few other bits and pieces would be required.
The lathe would need to have a rack modification to rotate a second 4 jaw chuck, mounted on the tail stock or the carriage which by way of gearing, (these gears driven by the aforesaid rack). Thus by affixing the cutter bar into the 4 jaw chuck, (this chuck itself being index-able, say 6 locations).
It follows that by moving the 4 jaw along the bed, whether mounted to the saddle or tail stock, that the cutter will rotate as according to the gearing between the rack and the 4 jaw.
Naturally the main lathe chuck is fixed against rotation
For the drilling operation I would have both the main spindle and the drill, the drill being attatched to the tail stock, rotating.
  
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TJ
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Re: Reboring
Reply #11 - Feb 25th, 2014 at 11:52am
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So the Black and Decker cordless and a long drill bit arent going to cut it then?
  
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wanganuikid
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Re: Reboring
Reply #12 - Feb 25th, 2014 at 4:01pm
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mitch270 wrote on Feb 24th, 2014 at 7:00pm:
The reason I asked was because I'd seen that it's quite popular and reasonably priced in the states. But as per usual  in old Nz we're 10 years behind the rest of the world, and when things finally arrive here the cost you an arm, a leg and a left testicle.

Actually re-boreing is a very old process, going back at least 100 odd years. It was common practice to recut a shot out barrel to a larger size and much cheaper than replacing it.
Nowadays with labor being comparatively more expensive and new barrels cheaper its just not practical unless there is a reason to preserve the original barrel. It can only be done with cut rifling to my knowledge.
So, more than likely it was available here many years ago but there simply is not the demand for it today.
  
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Flintlock
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Re: Reboring
Reply #13 - Feb 25th, 2014 at 4:32pm
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wanganuikid wrote on Feb 25th, 2014 at 4:01pm:
Actually re-boreing is a very old process, going back at least 100 odd years. It was common practice to recut a shot out barrel to a larger size and much cheaper than replacing it.
Nowadays with labor being comparatively more expensive and new barrels cheaper its just not practical unless there is a reason to preserve the original barrel. It can only be done with cut rifling to my knowledge.
So, more than likely it was available here many years ago but there simply is not the demand for it today.

Probably 3-400 years , in the muzzle loading days it was common and known as "freshing out" most barrels were fairly soft iron and could be recut with ease
  

Shooting is the most fun you can legally have with your clothes on .
Proverbs 12:27
The lazy do not roast any game, but the diligent feed on the riches of the hunt.
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Carlsen Highway
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Re: Reboring
Reply #14 - Feb 25th, 2014 at 4:35pm
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Its still a common and inexpensive process. Just not here.
It's like taxidermy. In the States its cheap as chips. In NZ it costs an arm and leg. Kiwis are greedy by nature.
  
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