It either is or it isn't. It was made to support a gun or not. There are plenty of stiff leather belts that aren't gunbelts, and don't function well when tasked with supporting that weight. Many web belts with high speed looking buckles that have no business being used as a gunbelt. The number one biggest difference between making do with a regular belt and using a purpose made one is the fact that a gunbelt doesn't have to be cinched tight to stay up or to keep the weapon from flopping out. So, if you have one, congrats. If you don't, they start from about 45 dollars. Good luck either way. Re: holsters- for those times when IWB is indicated (I usually carry OWB), I use sidearmor or crossbreed. Neither closes up with a normally adjusted belt.
Did someone talk to you about your TPS reports?