6mm barrels

[Ragnarok]

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!)

[Mr.Sandman]

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

[starman]

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..

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.

[littlebro05]

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.



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?

[elitesniper]

So I can use it as a cool drinking straw

[littlebro05]

So I can use it as a cool drinking straw

Hey elitesniper, what kind of barrel did you use for your Gator BBMG Final?

[elitesniper]

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

[littlebro05]

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

[Ragnarok]

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.

[starman]

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.