I'm with propmahn. The .30-.30 is a way under-rated gun. I think a lot of people go with the bigger guns because they have to make up for their inadaquaicies in shot placement. I feel very comfortable shooting my .30-.30 out to 150 yards and would even shoot out to 200 if I had the opportunity. I've dropped a few northern WI whitetails(close to 200 lb. animals) with one shot at over 100 yards. I even took a running doe at right around 200 yards. Even in drives I've dropped deer right where they were running with one shot and didn't have to follow up with a "kill" shot. I've never had a wounded deer with my rifle. It's shot placement. If you feel comfortable with your .30-.30 use it and be effective, but if you prefer the .06 use that. I have a .280 as well as my .30-.30 and when I'm out in the field looking at shots over 200 yards I'll carry the .280. Do a little more research and wait to see what gun to bring until you decide on where you're going for sure. Then bring both guns because as Duffy sadi you may want that back-up gun.