Range video of my AR15.458 socom pistol.I has a KAK INDUSTRY 8 inch barrel upper.Also I will be chrono testing load data and ringing some steel..Here is a link to another video over @ tj kin channel with much more load data for the 16 and 8 inch .458 and some data on the 8 and 11 inch 7.62×39.Please check it out…https://www.youtube.com/watch?v=VfsDS6way0k&list=UUknEBdpmKz9UNXXixoC97cw Also check out kak industry http://www.kakindustry.com/