So far I’ve only taken game with the 225gr Swift A-frame in the .338 RUM, with great success. The next bullet I want to try is the Barnes 250gr LRX.
I’m not sure I’d trust a Hornady ELDX at short to moderate ranges. I’m guessing it would be humming along at around 3000 fps. I’m not sure it would hold up on tough game. I used a 250gr Sierra in a .338 Win mag at 2680 fps on a mule deer at 60 yds and it broke up on a lung shot.
Although I’ve never used an ELDXin any round, a .338 RUM wouldn’t be the one I’d try it in.