American Ballistics 5.56 Whisperload
 

Anyone have any info on this load ie: bullet weight, bolt gun only or will it cycle AR action, velocity, etc? I have been trying to contact the company which is in GA but no one answers. I have seven 10rnd boxes of this stuff and want to know more about it before I start shooting it. It looks like good quality but I just want to know. Any info would be a great help.
Thanks,
Brandon.