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Posted: 5/1/2004 8:04:21 AM EDT
[#1]
Here, check this out...
www.norma.cc/htm_files/javapagee.htm You'll need to know a few things about the bullet to get it to work but it's really cool when it does. I'll try to find out the ballistic co-efficient for the 193 and get back to you... I need to know this stuff myself.hinking.gif |
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Posted: 5/1/2004 8:08:50 AM EDT
[#2]
I just did a quick search... I think the coefficient of the m193 is... a drum roll please...
.255 he I hope I'm getting this right... anybody care to chime in here? |
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Posted: 5/1/2004 11:06:15 AM EDT
[#3]
That's because that was the zero setup for A1-type uppers from M16A1s, which used M193 as standard ammo. Ideally, you want to zero at 50 yards using your large aperture, or using the small aperture with the rear sight clicked down 2 clicks (A2) or 4 clicks (A3). This will give you a very flat trajectory between 0-250 yards or so. You will be about 1.75" high at 100 yards. -Troy |
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Posted: 5/2/2004 7:37:54 PM EDT
[#4]
I think the ballistic cofficient of M193 is .243
Someone check the ammo oracle and see it thats right |
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Posted: 5/2/2004 9:06:31 PM EDT
[#5]
All you need to know about zeroing an AR15...
TheMarylandAR15ShootersSite I'd have to say that the VAST majority of folks here (including me) use the "Improved Battlesight Zero". That's the 50 yard method Troy mentioned. |
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Posted: 5/4/2004 2:29:36 PM EDT
[#6]
I've seen the BC for M193 as .255, .250, or .243 depending on where you look. Using Winchester's ballistics for Q3131A I get .266 with the BC calculator here.
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