I shoot 150 grain ballistic tip from my Weatherby .300 magnum and the muzzle velocity is around 3350 fps. It is a brutal round and hits like a freight train. It will kill anything with fur on it, no doubt. I've taken big mulies, white tail, about a 300 pound feral hog, axis, black buck, Aoudad, coyote, etc. To take a bear or elk, I would definitely go up to 185 grain and shoot it in, even though it probably shouldn't be too far off at a 100 yards or so. I have a Nightforce scope on it and it is just a nail driver. The gun and scope are way more accurate than I. The first cold-bore shot is always dead-on. Like within a dime at 100. Comparing it to a .308 is like a 1000 feet per second GAMO pellet gun compared to a Red ryder bb gun. Of course, it all depends on if you load your own hot rounds too or whatever. It is actually a model 700 Remington, chambered in .300 Weatherby. I'm thinking of getting a .308 semi-auto, as that is a great hog gun. The Weatherby is just a cannon. I also have a .338 magnum AR-30 from Armalite. I usually shoot 250 or 300 grain, but lately have been shooting 285 grain match rounds. I just vaporize I-beams at 200 yards for fun and use manhole covers for backdrops to stop the rounds after they go through the 1/2" I-beam. Now, that is a weapon. Bought it for long range Mulie hunts in far Southwest Texas, near Big Bend.