This thread is the definitive work on the ham'r bill Wilson is very active on it.
https://texashuntingforum.com/forum/ubbthreads.php/topics/7506626/43
He uses an 18" barrel and shows photos of how he is giving teddy Roosevelt a run for his money in his quest to kill every living thing larger than a wristwatch in Texas. He was very fond of the 135grn hot core bullets, and has recently gotten into some fancy (Leigh defense?) Copper bullets. Heck, I think Wilson combat bought the company making them. But I'm not going to buy fancy bullets. That was the whole point of abandoning the blackout in favor of the hammer. I could use a cheaper bullet that killed effectively. No more barns black tips for me! The 125 tnt seems to kill fine and is cheap. For the grendel, I'm thinking of abandoning the 123sst in favor of the 90gn tnt. I've shot straight through all my hogs with the sst. I want something that expands better. But again, shot placement is key. I've had more hogs run off, never to be found than just fall over. And while it's possible I'm missing them, often you can hear the bullet hit and they squeal and still run off. Now, after that first shot, shooting at a running hog off hand with a thermal scope on one power at 80 yards, I'm sure Ive missed
plenty