The animals you are planning to hunt will die with any of the calibers listed BUT the choice YOU must make is dependent upon budgets and the ability to practice; some loads are cheaper than others as far as practice rounds; with that said,
30/06 first choice
270 second choice;
Either caliber means nothing but death in the lower 48 as long as you do your part;
i would not feel comfortable with a 30-0-6 for a brown bear the guide would laugh his a#s of at you fremmer is the only one not out of their mind 30-0-6 for everything give me a f%#^&%@#* break WOW!!!!!!!!!!!!!!!!!!!!!!!!!!
would not feel comfortable with a 30-0-6 for a brown bear the guide would laugh his a#s of at you fremmer is the only one not out of their mind 30-0-6 for everything give me a f%#^&%@#*
325 WSM