We cleaned about 250 boar out of our farm over a four year period with the same 3-5 shot rifles we hunt deer and moose with. They mill around long enough you can reload. I have an SKS but I don’t bother, I’d rather sneak over a hill and pop half a dozen slowly and cleanly with my .338. And I can do it from far enough away that they don’t really get upset until 3 of them are lying on the ground, kicking.