RE: 350 mag for grizzly????
Before Winchester started chambering the M 70 for the .375 H&H Magnum back in the late 1930's, the most powerful cartridge routinely made available in the U.S. for dangerous game was the .35 Whelen. It was once considered almost equal to the .375 H&H!! Your .350 Rem. Mag. is at least as powerful (actually a little MORE) as that Whelen! With the right premium controlled-expansion bullet like a Nosler Partition, Barnes X, Trophy Bonded Bear Claw or Swift A-Frame, your rifle should be a real killer on bears of any size (and anything else you point it at)!!
Keep yore powder dry!!