Don't have one with an antenna but would be interested for my radio during rifle season which is similar size and a rhino is a possibility in the future.
I use one. It doesn’t have a hole, so I move the flap over to the side of the antenna. Have always hoped that someone would make one for the Garmin 64 series
They have one for a regular gps, one for a larger one like the garmin montana and one specifically for the garmin rhino. Also the best bino harness systems out there imo. Also have rangefinder pouches as well
I would use something along that line, I upgraded to Rhino 650 and would prefer to keep it from flopping around. Would need to be quick access or possible to see through the front if case.