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Old 04-14-2011, 20:59   #1
doneroman
SheepDogs-R-Us
 
Join Date: Apr 2009
Location: The Infidel lair
Posts: 950
16"18"20" ammo/barrel question

Well, doing my first build and ordering parts from several vendors. Barrel vendor won't be ready with stock for 2 months or so, so I don't have to pick the barrel yet. Going with the RRA upper/lower combo.. Anyway,...

a.) I'd prefer the 18" or 20" barrels, vendor I like has 1:9 twist. What is the best weight 5.56 bullet to use for this configuration that's good for match, mil., and L.E. use? Am I looking to cover too many bases with 1 upper?

b.) I see folks saying there is a difference between 5.56 NATO, .223, and .223 Wylde. What's the differences? (These barrels I'm looking at now are 5.56 NATO, according to the manufacturer.)

Thanks for your educated insight.
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