300 blackout cast boolit in AR platform
Hoping this helps others looking for a supersonic cast boolit that works well in an AR. First I bought the Lee 160 grain mold and no matter what I did it would not feed in 2 different AR's. I then purchased the NOE 135 grain mold, casted and powder coated 100 projectiles. I used powder by the pound super wet black, tumbled on 2 coats,baked at 400 for 20 minutes and sized to .308. I loaded up 50 rounds using H110, started at 16 grains and worked up to 17.3, all loads cycled but the accuracy was all over the place until 17.3, at 17.3 it was just about MOA. Zero barrel leading. Tested in 2 different AR's, both shot about the same. C.O.L was 1.975
