Formerly from Jacksonville
I grew up in Jacksonville on the Northside off Dunn Ave and I have had the BEST experiances at Gateway. Also, no on really mentioned Gun Gallery on Beach. My brother and I were members and they have a nice (smaller) indoor range. It is a smaller store and range (only can shoot up to .45 pistol and .22 rifle) BUt with inclement weather, it is great.
Just my .02.