Mark, I am in SC, also. If you are a shoulder shooter, go with a 95-100g partition, they will penetrate the deer from all angles, coming and going. Late afternoon hunting is a challenge for deer that run off as I am sure you are aware. We use IMR or H4350, Win primer, close to a max load for the rifle with great accuracy. Accuracy with the 95g seems to be a tad better than the 100, but hard to say what a barrel will like. R#26 with a cci 250 or Fed 210 will get you 3150-3200 out of a 24" barrel, but finding R#26 is a pipe dream right now.
100g Hornady is a hands down winner, I prefer the flat base if you can find them, 4350's seal the deal on speed and accuracy. We killed some big Kansas deer with the 100g Hornady btsp with a very accurate IMR 4350 load with a MV of 3050 fps. Most shots were between 200-325 rattling them in from a long ways out with Horns.
95g Nosler ballistic tip
95g SST are both tough bullets, great killers and are very popular with the 243 guys, 4350's for both of these
I prefer the 85g Speer btsp over the 85g Sierra bthp as penetration is better with the speer, hot load of R#19. The Speer 85 is a big game bullet, NOT a varmint bullet. I LOVE R#19 with these weight bullets.
If you want to drop down in bullet weight from the 95's, the 80g Winchester loaded with an over book max load of IMR 4064(Fed 210) will be very, very accurate, and deer drop. I prefer Lapua brass, or brass made from all the same year, New Lake City brass because the brass is tough and the accuracy node for Rem 700's is up there in pressure.
With your box stands and tight cover, use a bullet that is constructed where you can still break shoulders and heavy ribs. You know that when those bucks are chasing does, the shots can be rushed, and at times a Hail Mary!
Learn where to shoot on neck shots if you are shooting over a corn pile to avoid ruining meat. It is easy to mess up a neck shot, so be careful.
I have not seen a deer yet shot with a 243 that produced huge blood trails. For this reason, I am darn careful on late afternoon shots.
Best of luck