Yep. Georgia Arms is my favorite. They use starline brass and good components. Cowboy action ammo is a little anemic but I wouldn’t want to be on the wrong end of it either. Hollowpoint should be OK too, Blazer makes or made an affordable version in non-reloadable aluminum. They are just plain fun to plink with. No tin can is safe around this cowboy!
Some cowboy loads are pretty light. I usually shoot stuff at original velocities... it doesn’t matter how fast you are if you’re just annoying the “bad guy”.