Buwahahahahah!
..............................................500 yds
....................................FPS........... ......Ft/lbs
.243 100 gr Fed.BT..........2040...................925
30-06 150 corelokt..........1622...................876


I personnally dont give a rats @ss about energy but I posted it for those who do, energy doesnt kill. Here the 30-06 does not have enough velocity for adequate expansion but the .243 does, makeing it a more efficient killer at 500 yds than the 30-06 with the 150 gr. corelokt.
Not to mention the -06 will drop 11" more than the .243 at that distance.

Some people will never get it. Sigh........