I HIGHLY recommend Chestnut Mtn WMA range near Resaca. Ps admission is only $5.00 per vehicle, not per person.
https://georgiawildlife.com/chestnut-mountain-shooting-range
The most important thing to remember is that the only person that you have to impress is yourself. It sounds like you've got a good set up & shouldn't have any problems putting on paper. You may think you're missing, but putting them though the same hole lol. Keep us posted & best of luck with...
Don't be embarrassed to ask for pointers at the range, most fellas are good ol boys & will help if they can...including me. I go to creek side range in Taylorsville. Its out in the middle of nowhere & I've never met a jerk out there, only nice folks.