what sizing die are you using? looking at the pix of the round it looks like its not sizing all the way down. my opinion on the FCD is its fine for FMJ , but not so much for coated . i replaced mine with a lee taper crimp die and all types of bullets have no issue.
Also, those rounds that do not case gauge , will they drop in and out of the chamber of the gun you intend to use them ? if they do, jsut shoot them