Thread: New builds, 7.62x39mmUSA kinda like a 300/221XL
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  #20  
Old 06-06-2008, 10:32 PM
kurtz kurtz is offline
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Join Date: Aug 2006
Location: Southwest Louisiana
Posts: 172
the outside neck diameter of a loaded rounnd with a 125 TNT is .328 to .330, depending what brand of brass you use.....

kurtz
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