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AR15.COM
12/8/2010 4:50:51 AM EDT
What are they?? And get them for pass?

http://sarasota.craigslist.org/for/2101499718.html
12/8/2010 4:52:37 AM EDT
[#1]
I think that's 40mm on the clip, then a 3" and a 5".
12/8/2010 5:32:06 AM EDT
[#2]
Quoted:
I think that's 40mm on the clip, then a 3" and a 5".


Thanks, I want these but I do not like them for $100
12/8/2010 5:36:46 AM EDT
[#3]
3"/50 cal.





What does that mean?

12/8/2010 5:47:40 AM EDT
[#4]





Quoted:



3"/50 cal.
What does that mean?







The 3"/50 caliber gun (spoken "three-inch-fifty-caliber") in United States naval gun terminology indicates the gun fired a projectile 3 inches (7.62cm) in diameter, and the barrel was 50 calibers long (barrel length is 3" x 50 = 150" or 3.81 meters).



http://en.wikipedia.org/wiki/3%22/50_caliber_gun




 
 
12/8/2010 5:48:02 AM EDT
[#5]
Naval guns are described by the bore diameter (in this case 3 inches) and the length of the bore in relation to the diameter - in this case 50x. so the bore was 150 inches long.