Quote Originally Posted by seadog View Post
IMO it depends on your objective. Take a look at energy downrange as well as trajectory and you might just find your answer there.
Thats actually what I'm having a hard time with. 175 grain .300WM Sierra HPBT is running an average of 2800 FPS even though it's still a .308 diameter round. I'm trying to find what a .300 will do that an actual .308 can't to justify another platform. I saw the guy who owns Sniper's Paradise say that they were pushing .300WM to 1900 yards, but I just don't see how they're hitting that without blowing chambers. I'm pretty dedicated to getting answers on this though.

I'm honestly starting to see if I want to dedicate another platform to the ELR zone that it will need to have far superior qualities, like a .338 and load heavy with a super high BC.

I'm loading the .300WM data currently to find out what the trans-sonic zone and find where it falls off the table. I'll post what I find.