I suspect the problem is not the holster but the belt. Regular pants belts are not made to support the weight of a firearm, they are intended only to hold up the pants. I use a Blackhawk Serpa holster, which is a Kydex holster on a paddle made to fit a 1 1/2" belt. The belt is a 1 1/2" gun belt, especially made to handle a weapon and holster. You can find them in the holster and leather section fo places like Cabela's or Sportsma's Warehouse. They are higher priced than a pants belt, but worth the money to hold your weapon in the same place all the time, so it is where you reach for it.