Yes, but there's little room for error at 400yds. You really don't have to shoot that far unless you want to. The average distance for killing elk in Colorado is 150yds.

I use a replica of a Hawken and a round ball for elk now. Before that I used a 30-30. I like to sneak in close though. It's what I enjoy and i'm not recommending it.

Certainly, you can get within 200 yds. Not all of Colorado is open country. If you already have a 7Mm-08 i'd use it with a Partition bullet and hold my max range to 200yds. A .308 with the same bullet will work fine too.

If you have your heart set on 400yd shots. A .300 mag is a good choice. I think a .338 mag is a bit of overkill. Most guys can't shoot that round accurately because of recoil. If you can go ahead and buy one. I have a problem with big mags and hunters new to elk hunting. They think they can shoot the elk anywhere and the big mag will kill. That's not the case. I'd prefer to see a hunter use a proper caliber, hunt in closer, and take a careful humane shot.

It's your choice. This is just my opinion.


btw.... The old standby 30-06 is never a bad choice with an 180gr Partition.