Is there really much, if anything, to be gained by using a 243 rather than a 30/06 for whitetail/mule deer. A 30/06 with a 150 or a 165 grain bullet seems to be so close in terms of ballistics (looking at Winchester factory specs) to the 100 grain bullet in 243. Both are rated for deer. Interested in your comments. Right now I have a Browning A-bolt 30/06 and am toying with the idea of a 243. Is the felt recoil/noise really a whole lot different?