A pump in the heavy NW woods is a good idea and much quicker than a bolt for the follow up shots usually required.
Not really excited about the 338-06 idea, but would definitely explore the 200-220 grain offerings to see if they will shoot in your rifle. Also, the 18" barrel is a too much of a good thing, IMHO. 20" would be about ideal in this set up.

Bob


Never underestimate your ability to overestimate your ability.