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Old August 27th, 2008, 19:42   #16
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Why not some sort of ceramic? Or perhaps something like very hard durometer polyurethane?
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Old August 27th, 2008, 20:06   #17
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Originally Posted by Tirador View Post
i have here .878g bbs (6mm solid steel ball bearing )for gas powered guns. hit me up if interested.

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The gun would need to be extremely powerful to be able to shoot those at a reasonable speed.
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Old August 27th, 2008, 22:22   #18
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Question B/C anyone

Just to pose a question here.
Is the assumption "Heavy Ammo is more Accurate"????
In powder guns B/C (ballistic coefficient) is all important.
Does B/C have any place in A/S language?
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Old August 27th, 2008, 22:58   #19
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Quote:
Originally Posted by grantmac View Post
Why not some sort of ceramic? Or perhaps something like very hard durometer polyurethane?
Cheers,
Grant
The material has to be compatible with our current manufacturing process - I'm not up on all the science of it, I just sell the stuff...
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Old August 27th, 2008, 23:50   #20
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I'm assuming some sort of molding process using heat and then polished to remove the mold marks? Probably polyurethane would be compatable except I believe it's a two part substance. The entire question is whether it's any heavier than your current ABS, do you have any idea what the density is?
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Old August 27th, 2008, 23:54   #21
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Quote:
Originally Posted by grantmac View Post
do you have any idea what the density is?
No idea. I know that adding plastics of different densities causes some problems in the integrity of the BB as well - weight is only one part of the formula but things like polishability, even distribute of material in the substrate, etc... its a lot more complicated.
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Old August 28th, 2008, 00:26   #22
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Originally Posted by LUTNIT View Post
.34 are most definitely plastic still, as I have used .43's and they are 100% plastic. The .88's might be aluminum.
.88g are steel.

Aluminum BBs, SOLID aluminum BBs, only ones I've ever seen (and I had a bag years ago) were 0.29g.
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Old August 28th, 2008, 00:28   #23
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Quote:
Originally Posted by CANADIAN BACON View Post
Just to pose a question here.
Is the assumption "Heavy Ammo is more Accurate"????
In powder guns B/C (ballistic coefficient) is all important.
Does B/C have any place in A/S language?
Yes. Effective range is increased, to a point (too heavy decreases it) but maximum range (where the land) is reduced. Hard to explain in one or two sentences. 0.30g has pretty much the best B/C out of every weight of airsoft BB out there.
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Old August 28th, 2008, 00:40   #24
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Not to be finniky, but it's the 0.29g BBs that are the best overal in range/speed/acuracy.

But the 0.30g offer very good performance for rifle firing under 550fps.
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Old August 28th, 2008, 00:49   #25
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Quote:
Originally Posted by Tirador View Post
i have here .878g bbs (6mm solid steel ball bearing )for gas powered guns. hit me up if interested.

pic.
Hahaha, Nice one pare! Is this the one you use for your tirador?!

Last edited by DENZILDON; August 28th, 2008 at 01:03..
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Old August 28th, 2008, 00:56   #26
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Quote:
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Not to be finniky, but it's the 0.29g BBs that are the best overal in range/speed/acuracy.

But the 0.30g offer very good performance for rifle firing under 550fps.
Minor issue, barely any difference from my testing. Not even an fps difference. It's a 0.01g difference. The only difference between a 0.29g and a 0.30g is literally the make. 0.29g is only made by Maruzen, very perfectly made BBs, used them for two years, and the past year I've been using 0.30g Bastards and am REALLY impressed with them. Even compared them to the SIIS 0.30g BBs and found an increase of about 20fps with the Bastards over SIIS, for the same BB weight, gun set up. What stunned me most was the difference between 0.28g and 0.30g Bastards, there was almost identical velocities measured with the exact same set up across diffferent guns. Heavier weight without velocity loss = AWESOME!!!
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Old August 28th, 2008, 01:14   #27
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for heavier weight bbs, why can you have a very small ball of metal and coat the exterior in the BB plastic? would that not solve the weight issue?
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Old August 28th, 2008, 01:19   #28
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for .878g you need at least 800 psi to hit the target in 50 meters.
the velocity is only 300-400 fps (rough estimate).

if you are familiar with monster airsoft (electric-co2 gun ) he uses this kind of bb.
Lastly a friend of mine using this bb for killing a distractive rodents in his farm.
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Last edited by Tirador; August 28th, 2008 at 01:23..
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Old August 28th, 2008, 01:24   #29
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Sorry, but what IS a tirador? He's said he'll come play with me in Japan with my Tirador... wtf is it?
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Old August 28th, 2008, 01:27   #30
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Originally Posted by DONSTER 125 View Post
for heavier weight bbs, why can you have a very small ball of metal and coat the exterior in the BB plastic? would that not solve the weight issue?
likely the biggest factor limiting that is properly centering the core and being able to put the shell on cheaply and effectively. If it is off center by even a small fraction of however you want to measure it, then you'll get random spinning and could have very drastic effects on the flight path.
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