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4/30/2008 3:29:29 PM EDT

Is there a standard barrel length from which ammo companies measure the velocity of their 5.56 rounds?  I was over at PRVI and their velocity numbers are taken from a 24" barrel, which conveniently shows higher numbers.
5/1/2008 6:51:24 AM EDT
[#1]
I wish it were that simple.....

Aloha, Mark
5/1/2008 7:45:47 AM EDT
[#2]
24" (or 600mm) is the industry norm.

Most ammo companies also use a P/V chamber to test their ammo, which will allow them to pad their figures.
5/1/2008 12:45:05 PM EDT
[#3]
You know there are ALOT of us using 24" barrels too............  
5/1/2008 1:46:12 PM EDT
[#4]
Win Q3131
win used a 20inch barrel

I wish they would use 14.5 also
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