he got fired as editor of GungHo magazine back about 1980, cause he got caught faking being shot with a 308 while wearing the first "rifle-rated" body armor. He later set up what later became Front Sight, where the guy running it has been ripping off people right and left ever since. He started this bs of a "4 gun " master, smg, rifle, shotgun and pistol, when there's no need to bother with the smg or shotgun (as a weapon) at ALL. Big waste of everyone's time and money and so are the shotgun parts the 3-gun matches of today. You wont HAVE both a rifle and a shotgun, and you dare not limit yourself to the short range of the shotgun.
In 77 I rode with bill wilson out to the first IPSC combat pistol national champs, in golden CO. The range was just actoss a valley from the Coors plant. We couldn't practice there, so Bill and I heard about a backwoods range and drove there in his TransAm. Chuck and his SOF crew were there, having constant failures to feed with a canned Mac 10 .45. He was trying to use cast lead roundnose lrn bullets in it. He later, in his review of the gun in SOF mag, said it fed them "flawlessly".

Chuck was head weapons instructor at Cooper's place in AZ, until he caught Jeff rigging the steel targets in a smg vs rifle vs shotgun "test". Jeff added weight/angle to the pepper poppers, so that only a 308 or 12 ga slug hit would down them. Chuck was a big fan of the smg, cause he could make money charging people to "train" on his smg collection and was outraged at Jeff's deceit.