Actually I HAVE fired all of those and many other calibers, in all different weight firearms, at times on the same day, and a slug gun does not have a noticabley greater recoil than a equivelant rifle,but the big bruser rifles do kick worse than a dcent dedicated slug gun.

I am comparing ammo prices as I see them in the stores. Yes you can buy cheaper rifle ammo, you can also buy 5 packs of cheap slugs for $2 - $2.50 a box, and I can reload for my rifles OR for a shotgun/slug gun and either will be significantly less than store bought.

As far as kill power, you STILL make me laugh. And as far as how slugs don't do anything except make them bleed a little like a arrow hit, guess you need practice hitting them right. As far as rifles somehow being different than slugs..... is there some kind of magic that happens that makes the bullet different just because it came out of a shotgun. A slug IS a bullet, just a large caliber, slow moving one. There are plenty of rifles that have no real difference to a "slug gun" but since they are rifles they must be 100x better bywhat seems to be yourresoning. Just as you wouldn't use a 500 nitro on a deer, or a 44mag to shoot 100+yards, you need to match the weapon to the situation.
As alluded to before, shot placement does more for dropdown power than just picking a "better" caliber. I have seen deer run 50 yardsafter a shot that lefttheir heart and a good portion of lung turned tosoup andI have seen deer collapse immediately when hit by a .223.

I never said that I wouldn't take a rifle over a slug if given the choice, just that they are FAR from the terrible option you seemed to make them.