This comprehensive review details the performance of a custom Krieger AR-15 barrel, finished by RPM Rifle Works. The barrel, featuring a 1:7 twist and intermediate gas system, was tested with various match and bulk ammunition. Expert analysis includes detailed borescope inspections, group size measurements, and velocity data, highlighting its exceptional accuracy potential with premium loads.
This video details the process of cloning Mk 262 Mod 1 ammunition using Hodgdon CFE223 powder, comparing Sierra 77gr MatchKing and Nosler 77gr Custom Competition bullets. Expert reloading techniques are demonstrated, including brass preparation, precise bullet seating, and crimping. Range testing reveals exceptional accuracy potential, with the Sierra 24.4gr load achieving a 0.226" group, though velocities were slightly below the factory target.
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