I have killed A lot of elk with cal 338. My 338 win mag with 200 balistic tip at 3200 fps from 50 to 500 yds . A very good bullet. My 338 rum 700 yds w/250 game king , 300, 645, 685, 700 yds w/250 fb horady very accurate and cheap, 300,325 w/ 225 barnes triple shock(A lot of wind drift), 200, 325,500 w/275 a-frame, all one shot kills. I have just loaded 250 accubond to test. I shot seven elk with 300 mk and they do hit where you aim, but I had to hit the backbone before I could A bullet to expand at ranges from 100 to 600 yds. I will never shoot A game animal with one again.