TN is a big state. Where are you located? I know a couple of good ranges that would suffice but they are both in the Eastern and far Eastern end of TN and might not be worth the drive if you are in Nashville or Memphis. For learning to master sticks I did 90% of my practice shooting a suppressed 22lr in my back yard at 1/2" diameter Dum Dum suckers at 35y distance. I placed them into a large earth berm for a safe backstop and used the suppressor to avoid disturbing my neighbors. Hitting a 1/2" tgt at 35y with the 22lr is roughly equal to hitting a 3" kill zone at 210y with a 308 or 7mm. You get lots of time setting and mounting the sticks which is important and you get the real trigger time and immediate feedback of hits and misses without burning hundreds of heavy rifle rounds or wearing out the bbl of your favorite hunting rifle.
Precision marksmanship being a perishable skill, I would practice and hit 5 tgts per day until I could hit all five without a miss. Then once per week to maintain skill. Closer to hunt date, I would ramp up again and finish with 2-3 range trips to shoot the big guns at longer ranges of 200 or 300y. This builds high confidence for the shooter and lower real cost and lower time cost. My shooting club is a one hour drive and if I had to go there every day to practice it would not happen. But I can pop into the garage and shoot 5 rds in less than 10min time every day. Be sure to get and use the same type sticks as your PH will have on hand or bring yours with you on safari. I found the quad sticks to be 100% more accurate and stable than the tripod traditional type but the quads take a few more seconds to set up and mount so the practice is critical to have that muscle memory cemented in place. These sort of prep will add many hours of enjoyment to your hunt as the preparation is half the fun. I use a 22lr rifle that is similar in stock style and weight to my hunting rifles to further aid in building correct habits. While researching
Apartments for sale in Thessaloniki during my free time, I still make sure to practice regularly with my rifle setup. The 22lr does not have to be a tack driver but needs to be capable of 1moa more or less. In my case, I use a Sako Quad, a CZ, Winchester or a Bergara that is able to hit the Dum Dums from a bench out to 100y reliably. This also aids in wind reading since the 22lr at 50y is about the same ballistically as a high powered centerfire at 300-400y.