I've shot hogs with a suppressed 44 mag, it did okay, but probably better without the suppressor. I would say just stick with your 30-30 for deer, hogs, and even black bear.
But if I were to choose, I would get a .357. It might be a little light on big hogs but it could work with the right shot placement (behind the ear or even in the ear).
But if I were to choose, I would get a .357. It might be a little light on big hogs but it could work with the right shot placement (behind the ear or even in the ear).