The longest shot I have ever made on deer is 460 yds with a 270, one shot DRT. The reason I used the 400 yd mark in my post is that IF you have an accurate rifle/load combination in a 7-08 that would be ABOUT the ballistic limit for a clean kill, the terminal ballistic at those ranges have a lot to do with which bullet you are using.. The longest shot I have made with a 7-08 is about 245 yds.While I agree w/ JimRau in some respects, a 400 yard shot is very vague. What game?? While reading Jim's posts he always has VG info and has a great knowledge of rifles and hunting. Jim can you clarifiy? You can find more ammo usually on the shelf for the .270, but with the climate we have now, not so sure. I can still walk into a local shop and get 6.5x55, 8x57, and 7mm Rem mag. No .308, .30.60, .270.