due to the lack of decent barrels for the 5.45x39 i have decided to settle for the 5.56.
this is building an ar, for target/range shooting.
what twist rate would be best for cast boolits?
and of course what .224 boolit would best for target shooting in an ar?
my max range would be 300yds, but ill be more often shooting 100yd to 150yd.
also any advise on barrel length and where to find a stripped barrel?