@CBH Australia I too have looked into the zero at 25 yards theory. If nothing else it could be a good starting point, and see from there. I'm not big on these long distance shots, and I'm certainly not one to be adjusting my scope in the field for the proper yardage. I prefer more of a MPBR setup, and as such do prefer a flatter shooting cartridge such as the .270. You mentioned the 7mm-08 and I think that's a fine cartridge as well!
@Fastrig You've got me reading up on the 338 Federal. I have no real knowledge about it. Whenever I even hear anything like 338 my shoulder feels sore!
@Bob Nelson 35Whelen I think the 25-06 is an awesome caliber! (And very under-rated) I would say it certainly out-shoots the .243 when loaded with the same weight projectile, but won't quite hit the .270 performance. I certainly understand the .308 is more popular. One can't argue about the efficiency of a caliber such as that which has proven itself for many years. I was just surprised to see people say NO to the .270 and then throw support to the .308. I don't dislike the .308, in fact I've got a lot of respect for it, but in a way the .270 seems "better".....Even though (as stated above) I'm not really into the long distance shooting trend.
Perhaps
@lwaters is on to something regarding North American game vs African game and the positioning of the vitals. It may be possible that the .270 is truly more suitable for North American species. And with that thought, and the comparison to the .308, I do realize that the 180gr is probably overall the most popular weight for the .308 and as such, I used not only the 150gr, but the 180gr as well in my comparison. (Fastrig and Bob both made comments about using 180s)
At the end of it all, shoot what you like, and what works for you. Use the proper bullets (leave paper punchers at home), and make sure you have proper shot placement! For what it's worth, my hat's off to you gentlemen (and ladies) who can comfortably and confidently shoot big bores and even mid bores properly. I'm too much of a ¶u$$y! I have a 300WM that collects dust because I find that although it kills with the one end it wounds with the other!