Im trying to figure out what my next purchase should be. I will be mainly hunting whitetail out to about 200 yrds, maybe bear, and will try to get a PA Elk tag this year. I have read some articles about the 270 win being an all around cartridge. I want a round that will fly fast, hit hard and be effective on the game mentioned above. I would also like to stay away from larger than 30 cal. What are your opinions on the 270 Win from a 15" tube? Also considering the 243 Win and 308 Win.