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| jeepkahn |
 Posted: 02/24/2010 8:52 AM Post subject: |
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GRUMPY OLD FART
Joined: 09 Jan 2009
Posts: 754
772.95 Spud Bux
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| 19/32 is what you want.... 1/2" will be way too small... |
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| POLAND_SPUD |
| Posted: 02/24/2010 11:07 AM Post subject: |
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Lieutenant General
Joined: 13 Oct 2007
Posts: 4387
11901.36 Spud Bux
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1/2" bbs are 1/2" bbs - that is they should be 12.7mm
measure the exact ID of your barrel and substract the diam. of ammo from the ID of the barrel... if it's larger than zero then it will fit in it 
lol it's just one of those threads that proves that imperial units are no good |
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| Gun Freak |
| Posted: 02/24/2010 15:27 PM Post subject: |
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The Anti Hybrid
Joined: 25 Jan 2010
Posts: 4210
333.21 Spud Bux
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I know, I hate them, but hey, I can't go using Metrics around here...  |
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| jhalek90 |
| Posted: 02/24/2010 15:58 PM Post subject: |
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Lieutenant Colonel
Joined: 14 Aug 2009
Posts: 476
1341.46 Spud Bux
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and why not? Metric units are way better. I live in Michigan, USA and I PREFER metric units.
Think of it this way.
1''=2.54cm or 25.4mm
So 1/2''=(25.4)/2 or 12.7mm. so, a 12mm ball would fit okay. and a 13 would be to big.
Although, thats assuming 1/2'' pvc has an ID of 1/2''.... which it does not.
Like stated before... 1/2'' pvc is ROUGHLY .6'' ID so.
0.6*25.4=15.24mm
So, for MOST 1/2'' pvc... the ID is 15.24mm get yourself a 15mm ball bearing... and use a sabot.
EDIT:
Seriously, when someone helps you... be nice to them, or soon, no one will help you. Also, we here on spudfiles will not spoon feed you answers. Use google and don't be lazy.
You will not be taken seriously around here until you show at least a little bit of effort. |
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| Gun Freak |
| Posted: 02/24/2010 16:12 PM Post subject: |
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The Anti Hybrid
Joined: 25 Jan 2010
Posts: 4210
333.21 Spud Bux
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| Was I mean to somebody who helped me? |
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| MrCrowley |
| Posted: 02/24/2010 16:20 PM Post subject: |
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Kaleun
Joined: 23 Jun 2006
Posts: 8999
9195.37 Spud Bux
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Well as far as i'm aware, this topic was resolved in the 4th post... 
I think you just ignored it or something, becaue every other post was kind of saying the same thing. If you know the I.D of your barrel, then you will know if the ball bearing will fit. If you don't know, look at a chart or measure it yourself. You don't need a tool anymore precise than a ruler to do this. |
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| jhalek90 |
| Posted: 02/24/2010 19:42 PM Post subject: |
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Lieutenant Colonel
Joined: 14 Aug 2009
Posts: 476
1341.46 Spud Bux
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| Gun Freak wrote: | | Was I mean to somebody who helped me? |
Not mean per-say, you just chose to ignore the answers given to you, because you apparently did not want to go find a ruler.
Unless of course, you were asking for the diameter of the ball bearing, which in that case... is usually with in a few thousands of an inch of what it is listed as. aka: 1/2'' bearing would be in the 0.495''-0.505'' range. |
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