i have never gone grizzly hunting or brown bear, the biggest thing i am currently hunting is moose, and for that i use a 30-06. i am just wondering why you guys think that the 30-06 wouldnt be big enough to hunt the brown and grizzly. is there just not quite enough umph??

one other reason i ask is because where my spouses parents live there a grizzlies around and we go for walks in the bush (the town is kinda in the middle of nowhere pop. 5000) and i was gonna start to carry my rifle with me, but wont it do the job if one came too close for comfort, or should i be maybe looking at something bigger? i dont want to really buy another cause my 06 does everything i need it to do.