Choked barrels on 34's?



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Offline JonnyReb

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Choked barrels on 34's?
« on: March 20, 2011, 02:01:37 AM »
  Tom Gaylord claims his 34 barrel is choked in this review and i was wondering if anyone knows that their own is, or that RWS is now producing them that way? Thanks. J
http://www.google.com/url?sa=t&source=web&cd=3&ved=0CCwQFjAC&url=http%3A%2F%2Fwww.pyramydair.com%2Fblog%2F2007%2F06%2Frws-diana-34-panther-part-3.html&ei=LYmFTer1NdOBtgeM__DUBA&usg=AFQjCNHKknUfhgod-8TNkZiYP7uDmyclBA
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compressedair

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Re: Choked barrels on 34's?
« Reply #1 on: March 20, 2011, 09:47:18 AM »
This came up awhile ago j.
Some say they're not. At least not intentionally.
http://www.gatewaytoairguns.org/GTA/index.php/topic,10004.0.html

Offline Mark 611

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Re: Choked barrels on 34's?
« Reply #2 on: March 20, 2011, 10:25:15 AM »
JR that is a very good question! from what I understand from this post TG could not confirm this question, that is not to say that they my have or might be doing this on their T06 line but if they were they would probly make it known from Diana.
« Last Edit: March 20, 2011, 07:58:21 PM by Mark 611 »
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thekid

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Re: Choked barrels on 34's?
« Reply #3 on: March 20, 2011, 10:32:05 AM »
both my 34s .177 + .22 ,  have chocked barrels.

When I push a pellet down the barrel it gets real tight towards the muzzle end, then spits out because of the force needed to push it out. Rob

deanda

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Re: Choked barrels on 34's?
« Reply #4 on: March 20, 2011, 11:13:57 AM »
This is turning into the million dollar question.............hahahahahah

Offline Mark 611

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Re: Choked barrels on 34's?
« Reply #5 on: March 20, 2011, 11:20:14 AM »
not really cause their a ton of info on the yellow about this subject.
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deanda

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Re: Choked barrels on 34's?
« Reply #6 on: March 20, 2011, 11:24:03 AM »
Well.....what is the conlusion on the yellow......yes choked, or not choked?

Offline Mark 611

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Re: Choked barrels on 34's?
« Reply #7 on: March 20, 2011, 11:59:12 AM »
Tim Meredith has a post on Oct, 27 2009. and gives his view on this subject, I personally will believe his opinions and the the opinions of all the other pro tuners that I know and do business with on this matter who do alot of barrel work chop/recrowns and replacements {etc} that most AG barrels are not a true choked barrels as people are lead to believe, yes some are made with a slight taper at the end of the barrel, this is not a true choked barrel.
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Offline JonnyReb

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Re: Choked barrels on 34's?
« Reply #8 on: March 20, 2011, 01:15:52 PM »
 I feel so.. uncertain :)     so i guess ir's up in the air slightly, it does seems like the german made barrels have a better chance of it than the chinese ones probably. And that would be an 8 land barrel correct?  thanks, J
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deanda

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Re: Choked barrels on 34's?
« Reply #9 on: March 20, 2011, 01:24:03 PM »
I feel so.. uncertain :)     so i guess ir's up in the air slightly, it does seems like the german made barrels have a better chance of it than the chinese ones probably. And that would be an 8 land barrel correct?  thanks, J

mmmmm  I'm with you Dr.

Offline JonnyReb

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Re: Choked barrels on 34's?
« Reply #10 on: March 20, 2011, 01:42:43 PM »
 So where do you think this may lead Dean?  ;D
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Offline JonnyReb

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Re: Choked barrels on 34's?
« Reply #11 on: March 20, 2011, 01:46:58 PM »
Tim Meredith has a post on Oct, 27 2009. and gives his view on this subject, I personally will believe his opinions and the the opinions of all the other pro tuners that I know and do business with on this matter who do alot of barrel work chop/recrowns and replacements {etc} that most AG barrels are not a true choked barrels as people are lead to believe, yes some are made with a slight taper at the end of the barrel, this is not a true choked barrel.


 Well i wonder if you buy a L. Walther barrel, which is advertised as being choked, if you are not getting a true choke? Maybe i should try emailing them and see what they say, and i'll get back to this post,  :)  Thanks Mark
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deanda

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Re: Choked barrels on 34's?
« Reply #12 on: March 20, 2011, 01:52:39 PM »
So where do you think this may lead Dean?  ;D

I think we may be back at the beginning, right where we started.........lol

Walther answering could help........

Offline JonnyReb

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Re: Choked barrels on 34's?
« Reply #13 on: March 20, 2011, 01:53:57 PM »
 It did give us something to talk about though. ;)
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Offline JonnyReb

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Re: Choked barrels on 34's?
« Reply #14 on: March 20, 2011, 02:00:26 PM »
This came up awhile ago j.
Some say they're not. At least not intentionally.
http://www.gatewaytoairguns.org/GTA/index.php/topic,10004.0.html

  Thanks for this link Mike, it brought up some good points for sure and a few questions i now have for Mark611

  Mark,  When you mention polishing the breech on your L walther barrels, huw much metal are you removing and can you explain in more detail how to choke a barrel with a flaring tool?  Thanks so much,  J
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Offline Mark 611

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Re: Choked barrels on 34's?
« Reply #15 on: March 20, 2011, 02:32:13 PM »
On my LW barrels, I had them cut to the length I wanted from the breech end of the barrel and they were installed into the barrel block of the rifles in question, and the fit was so tight for some of the pellets I wanted to use {10.5gr} that they wouldn't fit correctly so I used a dremel tool and a grinding stone slightly larger than the bore dia and opened it up to accept the larger pellets I wanted to use so they would seat correctly without smahing the skirts, its not hard to do but you must be careful not to wallow out the hole and you don't have to go that deep to correct this problem and it doesn't effect the use with the smaller 7.9gr pellets they still work just fine. A well known AG tuner/builder has told me that is how it can be done I have not personally done it but what hes told me is when using a flaring tool you find the hole size in the tool that is just smaller than the barrel and work the tool down to compress the barrel, you want to do this on the last 1/2in of the barrel alittle at a time and you want to size the pellets as you do this cause it doesn't take much to put a small amount of choke in a barrel, now I not sure what kind of tool he is using size wise to do this kinda of work but this it how he does it and hes very good at what he does, hes a custom AG builder not just a tuner.
« Last Edit: March 20, 2011, 11:06:34 PM by JonnyReb »
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Offline Mark 611

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Re: Choked barrels on 34's?
« Reply #16 on: March 20, 2011, 03:08:25 PM »
also from my understanding the 12 land barrels are the outsourced barrels Diana used for awhile and were not made like the 8 land barrels as far as the taper that Diana uses on there in house barrels, if you have done any research on this issue of chokes and their purpose it all becomes a little clearer, well made barrels don't really need a choke, but a well made barrel with a true choke is even better, tapered barrels in some cases are done this way to help correct inconsistency in the rifling of barrels {lose and tight spots} thats why some barrels feel tighter in the last inch or so of the crown, this helps size the pellet so it has a better chance of being accurate and the barrel being a little less pellet fussy so it will shoot a wider range of pellets more easily.
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Offline JonnyReb

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Re: Choked barrels on 34's?
« Reply #17 on: March 20, 2011, 11:08:45 PM »
  Well great info Mark, i'll check it out a bit closer, also, L.Walther offers their airgun barrels either choked or not and seems to justify the use of the choked barrels on pcp guns. J
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compressedair

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Re: Choked barrels on 34's?
« Reply #18 on: March 21, 2011, 01:39:10 AM »

Offline Mark 611

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Re: Choked barrels on 34's?
« Reply #19 on: March 21, 2011, 07:47:41 AM »
very good info this is exactly what I've been saying.
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