FWIW, I think my Kore is pretty marginal as a gun belt. I still use it because I'm usually wearing suspenders with it.
I'm about to go into work for the night and will wear it tonight OWB sans suspenders just to give it another go. IWB it's pretty bad, but my impressions thus far are that it's pretty marginal OWB and I wouldn't recommend it for anything heavier than a Glock 26.