I'm torn between .243 and .308
.243 is leagues better when it comes to extreme distance precision shooting, but you'll shoot out your barrel about 3-4 times faster than .308 if your running hot loads (3400fps+) on the other hand a good .308 will last me 10,000 rounds easy but its performance at greater distances (1000yd and up) pales when compared to 243.
HALP