I know about ballistics, reloading, calibers etc. but I am not up on barrel life. I understand the basic concept, put a lot of powder behind a bullet and it will burn out a barrel faster. What combinations make for a barrel burner though? I know that the 308 runs higher pressure than the 30-06, but has a better barrel life. So does pressure play a role? Is it just amount of powder, wait no because the 6.5-284 burns barrels quicker than a 300wsm. Secondly, is there any good long range hunting calibers that don't burn barrels? Something that can take an elk at range. What caliber would you choose if it had to be cost effective to practice with, not burn out a barrel lets say before 3000 rounds, and could drop an elk at 1000 yards?