hey guys, i have a buddy that wants to try his hand at the .338 game but doesnt know where he wants to start. He has shot his .300win mag and .300rum alot over the years and wants to step up to a .338 only problem is..the cost of ammo! Which .338 is the most cost efficient out of the RUM, LM, and edge? I was leaning more towards the rum, but i dont know much anout the .33' s. i stay with my .300' s but he wants to launch the 300gr bergers or Sierras over 2600fps if possible. Thanks guys!