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6mm barrels

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
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Unread postAuthor: Ragnarok » Sun Jul 13, 2008 12:58 pm

Mr.Sandman wrote:what is that in fraction form

Not everything can be simplified into fraction form, and if you're trying to buy in fraction form, you'll probably get the wrong size.

15/64" ID would be too small for 6mm BBs, but 1/4" would be on the large size.
11/64ths would be undersized for 4.5mm BBs, but again, 3/16ths wouldn't be ideal either.

Don't try and buy in fractions of imperial - it won't work.
(Gah, why can't you just work in Metric!)
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Does that thing kinda look like a big cat to you?
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Unread postAuthor: Mr.Sandman » Sun Jul 13, 2008 1:07 pm

man that sucks cause i live in the us and we have our inch,foot,yard,mile system. :(
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Unread postAuthor: starman » Sun Jul 13, 2008 1:36 pm

Mr.Sandman wrote:man that sucks cause i live in the us and we have our inch,foot,yard,mile system. :(


It many times sucks just as bad for those in places that DON'T use the imperial system.. :wink:

I don't think Rag was necessarily lifting one system over the other, rather encouraging you to just seek out, obtain and use real 4.5 mm or 6 mm pipe.
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Unread postAuthor: littlebro05 » Sun Jul 13, 2008 5:45 pm

Yeah I was looking for bb tubes too :S, but i ended up purchasing a 10mm i.d. tube and using "bic pens" taping it together and around the tube so it'll fit perfectly with my aluminium tube :S. It' looks pretty slick although I bet it'll wear our pretty quick.

Image

It's pretty ghetto, so I could go to say auto repair shop and ask for a brakeline barrel. My excuse if they ask why a 16 year old kid wanted to buy one, "I wanted to make a bb blowgun", lame excuse though haha.
So places I can go... Auto Repair Shop and Hobby store aye?
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It's Nerf or Nothing.

Don't start crying when I play this as my hobby, Paintball, Airsoft and Nerf are equally good hobbies, except you can play Nerf in public. Good day! Hmph!
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Unread postAuthor: elitesniper » Sun Jul 13, 2008 5:47 pm

So I can use it as a cool drinking straw :D
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Unread postAuthor: littlebro05 » Sun Jul 13, 2008 5:54 pm

elitesniper wrote:So I can use it as a cool drinking straw :D


Hey elitesniper, what kind of barrel did you use for your Gator BBMG Final?
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It's Nerf or Nothing.

Don't start crying when I play this as my hobby, Paintball, Airsoft and Nerf are equally good hobbies, except you can play Nerf in public. Good day! Hmph!
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Unread postAuthor: elitesniper » Sun Jul 13, 2008 6:07 pm

I used some acrylic tube I found at the fish store it said 5/16 but I thats too big, the id was 6 mm though, I was just lucky I guess, cus i had a bb in my pocket and it fitted in the tube perfectly so I bought it :)
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Unread postAuthor: littlebro05 » Sun Jul 13, 2008 6:21 pm

elitesniper wrote:I used some acrylic tube I found at the fish store it said 5/16 but I thats too big, the id was 6 mm though, I was just lucky I guess, cus i had a bb in my pocket and it fitted in the tube perfectly so I bought it :)


Fish store you say?, Acrylic Tube you say? man I'm using stuck together bic pens lol with a aluminium barrel on the outside to fortify it :S, well to a fish store!!. any idea what that tube was actually used for lol
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It's Nerf or Nothing.

Don't start crying when I play this as my hobby, Paintball, Airsoft and Nerf are equally good hobbies, except you can play Nerf in public. Good day! Hmph!
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Unread postAuthor: Ragnarok » Sun Jul 13, 2008 6:29 pm

starman wrote:I don't think Rag was necessarily lifting one system over the other

If you're doing precision work, metric is (in my opinion) a better choice, because you've got no conversion factors to work around - it's all decimal.
I wouldn't be caught dead using imperial for any work where precision is key.

I do use imperial occasionally, but for rough work and estimation: "It's about 30 feet mate" - that kind of thing.

Of course, you should never mix the two systems up, as happened with NASA's Climate Orbiter mission, where the craft was expecting it's course adjustments in metric, but got given them in imperial.
...That was a $125,000,000 crater on Mars.

But in this case, yeah, you'd do best to seek out proper metric pipe. Although I'm no expert (because I've never been to the states), I believe you can get 4.5 & 6mm ID automotive brakeline in the US, both of which are supposedly good for BBs of the right size.
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Unread postAuthor: starman » Sun Jul 13, 2008 8:28 pm

Ragnarok wrote:
starman wrote:I don't think Rag was necessarily lifting one system over the other

If you're doing precision work, metric is (in my opinion) a better choice, because you've got no conversion factors to work around - it's all decimal.
I wouldn't be caught dead using imperial for any work where precision is key.


Well, we use decimal in the imperial system as well for precision work, no fractions whatsoever. Most manual (non electronic) micrometers I know of measure down to 1/10,000" and calipers down to 1/1000". You'll see measurements referred to as .125" (1/8") for instance and scale rulers marked in .1 and .05 (1/10th and 1/20th) of an inch increments.

However, the 1/2", 1/4", 1/8", 1/16" etc. fraction system is usually used to measure non-precision and more everyday life things.

Yes, 2 different measuring modes of the same system...we're used to it and is just as easy as using the metric system. The absolute distance measured can be declared just as accurately in imperial as it can be in metric.
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