Metro Atlanta Airsoft

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A network of airsofters in the Metro Atlanta area.


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Tinman
UBCS Gibbs
Lone Wolf
ATLAS
Phoenix
Tux
reconsniperga
XXX
Chief
NJSC
|337
firby911
#CW!!ZERO
17 posters

    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy.

    #CW!!ZERO
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    Posts : 1268
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    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. Empty THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy.

    Post  #CW!!ZERO 15.02.09 23:23

    Ok so I have been looking at all of this talk that now PDI is saying that now the 6.08mm tightbore is more accurate then the 6.01mm tightbore.
    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. BarrelBalistics0001

    This is the image that has been published by PDI saying that the 6.01 tightbore is actually less accurate then the 6.08 barrel. Seems a little different because I know that people have always told me that the tighter the bore than the more accurate your gun will be. Well I have been reading these articles and decided to try this out for myself. Also with this testing I decided to also test the polishing idea, that if you polish the inside of the barrel with regular liquid car polish then it will fill in the small holes and cracks in the barrel and make the air flow better, giving the gun more accuracy.

    All tests were done with a TM VSR-10 G-Spec with a PRO sniper 430mm barrel kit on it, the hop-up rubber was a Firefly Hard Type, and the spring was a Laylax 190m/s spring. The bb's used were Super Grand Master .29g BB's. All of the groupings are done with five shots.

    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. N1126651126_30100453_3513


    Below is a picture of what groupings I got when I had installed my old stock barrel into my rifle, which the inner barrel diameter is 6.08mm, the groupings are pretty usual for a 30 foot shot with a stock barrel. This is with the barrel freshly cleaned and oiled, but not polished.

    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. 2172_4838929740201676535_5800_n

    This next picture is one of my Dees Customs 6.01mm tightbore barrel, 430mm long, and no polish, just freshly cleaned and oiled. Not very surprising that the tightbore would do better then the stock barrel, right??

    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. 2172_4838929740201676534_8605_n

    Before I show you the pictures of the groupings after being polished here is the polish that I used.

    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. 2172_4838929740201676546_3449_n

    Ok well here is the picture of the STOCK barrel after being polished again at the same 30 foot distance.

    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. 2172_4838929740201676532_583_n

    Quite amazing considering that here is the TIGHTBORE after being polished.

    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. 2172_4838929740201676533_6526_n

    So now that the fact that polishing the barrel does in fact greatly improve the acuracy of stock barrels, and that it amazingly made it more accurate at a closer distance then the 6.01mm tighbore was. I decided that it was time for some long range shots. I decided to take the target out to 100 feet and see if the tightbore would prevail over the stock barrel.

    To my amazement this is what the groupings looked like, at 100 feet and using the STOCK barrel this is what I got.

    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. 2172_4838929740201676537_3735_n

    Now I looked at these results and was just amazed at how could this be possible, so then I decided to go on ahead and test the 6.01mm all mighty tightbore and this is what I got.

    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. 2172_4838929740201676536_9741_n

    So this information is enough to prove to me that tightbore barrels do nothing but add friction onto the bb and make it spin off at a distance, polishing the barrel really does marvels, these results have changed how I buy airsoft barrels.
    firby911
    firby911


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    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. Empty Re: THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy.

    Post  firby911 16.02.09 0:16

    That is awesome,great job.
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    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. Empty Re: THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy.

    Post  #CW!!ZERO 16.02.09 0:19

    Thanks dude, I have the actual pictures at my house if you ever care to look at them.
    |337
    |337


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    Post  |337 16.02.09 10:05

    how exactly did you polish it?
    NJSC
    NJSC
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    THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy. Empty Re: THIS IS HUGE, comparing 6.01mm tightbore to a 6.08mm stock barrel/Polishing your barrel for more accuracy.

    Post  NJSC 16.02.09 10:46

    How about the distance the bb will travel? Is it any less? FPS loss compared?
    Chief
    Chief


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    Post  Chief 16.02.09 11:23

    What was you shooting position? Prone, kneeling etc. Was your gun clamped down, on a bi-pod etc.?
    XXX
    XXX


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    Post  XXX 16.02.09 11:39

    #CW!!ZERO
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    Post  #CW!!ZERO 16.02.09 12:39


    Why did you post the link to my other post on AirsoftRetreat??

    But my gun was sandbagged down, so it had no movement. I do not have a chrono to tell FPS, but I am not concerned with FPS because I am a sniper, I am just looking for more accuracy, and so my tightbore is going on vacation, if anyone wants to buy it be my guest.

    But to polish it you take some polish and put it on the end of the fuzzy catepiller in the .22 cleaning kit, then attatch the other end of the cleaning to a drill and spin the cleaner through the barrel, then take cleaning rags and run them through with the cleaning rod till they come out clean.
    reconsniperga
    reconsniperga


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    Post  reconsniperga 16.02.09 13:28

    Stickied* Great research/testing.
    Chief
    Chief


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    Post  Chief 16.02.09 13:55

    I'm still trying to wrap my head around the debate about tight bore barrels so please bare with me. I can't rule out tight bore barrels yet.

    According to the PDI diagram at the top of the post, the 6.01 gives a greater FPS result BUT the 6.08's air cushion "carries" the bb longer. Knowing for a fact that a heavier bb is going to travel straighter, and hold it's energy longer than a lighter bb with the same FPS, I cant rule out the FPS side of the argument. There must be some "magical" balance between, FPS, bb weight, bore diameter, and barrel length.

    Just with the "carry" and "FPS" as factors, the logical conclusion would be a 6.03-6.05 barrel as being the best bet for most situations. The FPS of the gun, and the weight of the bb's would need to impact the decision.

    It's also evident by your testing that a polished barrel makes a significant difference. I know this is a no-brainer but should be mentioned, as someone else already mentioned, that the proper polishing agent should be used so as not to damage the inside of the barrel. For instance brass polish for brass, metal for metal, etc.
    Tux
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    Post  Tux 16.02.09 14:19

    You scrubbed steel on brass?
    Phoenix
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    Post  Phoenix 16.02.09 14:34

    Is 5 shots a piece really enough to be making a conclusion about this? How were wind conditions? It seems like there are too many possible variables to be making any solid conclusions yet, although the results seem pretty evident at first glance. Great work, but perhaps we should get some more testing before we really decide. By the way, on the airsoftretreat forum, somebody said that TCF and EDGI had already disproved this. Does anybody have a link or something to this? I don't even know where to begin looking for that information.
    |337
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    Post  |337 16.02.09 15:17

    I agree with matt,

    Also if you are getting 10 inch groupings @ 100 feet you are doing something very wrong, TCF is getting nickel sized groupings @ 100 feet off an 6.01 EdGi barrel on his "Jerambis" build.
    ATLAS
    ATLAS


    Posts : 308
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    Location : Newnan GA

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    Post  ATLAS 16.02.09 15:44

    All i can say about this, is that when I switched over to a 6.01(Thanks again TINMAN) on my g36c i noticed a HUGE difference in the accuracy. I also gained between 5 and 10 fps.

    In order to find a true answer on this question you would need to put together several different types of barrels in several different types of guns. Also the test should be done in full auto at least once. Key to finding scientific answers is the ability to repeat the experiment with the exact same results and to eliminate variables that could be effecting the outcome. For example: does this hold true for all barrel lengths? I could see how a 363mm 6.01 would be vastly more accurate than a 247mm 6.01mm and I could see a severe reduction in power going from a 247mm 6.08mm to a 363mm 6.08mm.

    More important than the facts is the source. Does the company trying to push this theory sale a 6.08 "tight bore". It is in airsoft as it is for all of life, "follow the facts to find who is getting paid to produce them and then decide if you want to belive"
    XXX
    XXX


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    Post  XXX 16.02.09 18:09

    I will try it I have my old stock barrel, I will polish it and post the results.

    Edit:Never mind I don't feel like switching buckings. If anyone want to donate a bucking I would be glad to do it.
    reconsniperga
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    Post  reconsniperga 16.02.09 18:19

    Chief
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    Post  Chief 16.02.09 18:46



    Good link. It really says it all along with what others have already posted. A proper test would be inside at 50, 100, 150, and 200 feet. Same gun with barrels from stock to 6.01. Doing the test with different weight bb's would be good too. Independent testing is always the best. PDI is in business to sell all of their different barrels. Having the access to a range and the money for all the above is tough.

    For the record I have two 6.01's, two 6.03's, and one 6.04 in some of my gun's and all have improved the accuracy from stock. I have not tested, for example, a 6.01 and a 6.03 in the same gun yet.

    "How many licks does it take to get to the center of a Tootsie Roll Tootsie Pop? The world may never know."
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    Post  #CW!!ZERO 17.02.09 2:40


    Yeah I based my tests off this origional testing, but I went to the far extremes of the 6.08 and the 6.01.
    Phoenix
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    Post  Phoenix 17.02.09 12:49

    I think probably the best way to continue the testing is to increase the distance. Because honestly, who cares about half an inch of spread at 30 ft? It doesn't make a difference. But at longer ranges, when the other factors such as carry and such come into play, the accuracy of a tightbore may be better even if it's a little worse at long ranges. Basically what I'm saying is that at 30 ft, all you're testing is the immediate accuracy of the BB exiting the barrel. Factors that affect the BB's flight over the long term aren't taken into account, and I think that a tight bore barrel may beat out the stock barrel in the long run (no pun intended). Then again I may be completely wrong... Just a thought Very Happy
    Lone Wolf
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    Post  Lone Wolf 17.02.09 17:08

    Oh yea, my buddy sticks did this not too long ago also. I am supposed to get him some numerical feedback as soon as I get my gun fixed.

    I'll have a whole Excel display of piegraphs and comparisons. Not to mention chornograph data.
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    Post  #CW!!ZERO 23.02.09 2:02

    Lone Wolf wrote:Oh yea, my buddy sticks did this not too long ago also. I am supposed to get him some numerical feedback as soon as I get my gun fixed.

    I'll have a whole Excel display of piegraphs and comparisons. Not to mention chornograph data.

    Alright cant wait for the data to come out.
    XXX
    XXX


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    Post  XXX 23.02.09 16:54

    I would like to see what Rhino thinks about this...
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    Post  #CW!!ZERO 24.02.09 0:02

    I would too, but I am actually gonna get the EdGI 6.00mm ported tightbore and test it out before i close out on tightbores.
    UBCS Gibbs
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    Post  UBCS Gibbs 05.03.09 10:14

    Little late on finding this here.

    Anyways; This is the same concept that tippmann phnuematics used on their stock barrels. It failed, epically. I will try this one myself with a barrel I have sitting around, but I fear this may be bollocks.

    The theory that the air will keep the BB in the middle of the barrel is absurd. When I tested the tippmann barrel, I put paint on the outside of the paintball and looked inside the barrel when I was done. There was paint where the ball had bounced from side to side.

    I will try the same technique in this, and I guess I will have to split the barrel open with my dremel to see where it had bounced.
    #CW!!ZERO
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    Post  #CW!!ZERO 05.03.09 18:42

    UBCS Gibbs wrote:Little late on finding this here.

    Anyways; This is the same concept that tippmann phnuematics used on their stock barrels. It failed, epically. I will try this one myself with a barrel I have sitting around, but I fear this may be bollocks.

    The theory that the air will keep the BB in the middle of the barrel is absurd. When I tested the tippmann barrel, I put paint on the outside of the paintball and looked inside the barrel when I was done. There was paint where the ball had bounced from side to side.

    I will try the same technique in this, and I guess I will have to split the barrel open with my dremel to see where it had bounced.

    Go for it and post the results.

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