Are the Federal DP slugs safe for use in modern shotguns with a choke constriction of "FULL" like every other Foster/Classic Brenneke type slug out there? I know Federal tested the original TruBall slugs through a FULL choke as well as CYL choke, and found less than a 1" difference in group size at 50 yards between the two, but I can find no internal testing data from Federal. I am looking for a bit more than "I shot them and they were fine". Would be nice to have something from Federal on this, whether the side of the box, or on their YouTube channel, or simply "I worked with them and yes, it was tested through a full choke barrel" from someone like DocGKR.