Just like Bartman, I also have a M70 Super Grade in 300 Win Mag and a Rem 700 BDL in 35 Whelen. I've used the Whelen with 200 gr Rem Core-lokts to take a couple whitetails, and 3 caribou. All died right where they were hit. Meat damage was no more than the .280, .308 or 30-06 which I've used on other whitetails. I also used the Whelen on a moose hunt in NB using Federal Premium ammo with 225 gr. Trophy Bonded Bear Claws. It too didn't take another step. My 300 Win Mag is from the estate of a dear friend who used it to take his bull moose on our trip together to NB. He used Federal Premium 200gr TBBC and his moose also died on the spot.
I've not hunted with the .300 Win Mag because I've not hunted anything bigger than whitetails since I've had it. Where I live and hunt the .300 WM has no advantage over my other deer rifles. For me, the biggest downside to my .300 WM is that the rifle is just too heavy and too long. The Whelen with it's 22" barrel is much handier.
