My buddy and I have played with these a bit. We are running them out of a paramount pro. We've been shooting both these and the Fury's doing a lot of going back and fourth on which bullet to use. The Fury's shoot very good, but so far from what I've seen, the ELDXs shoot right with them.
My buddy had a Co muzzleloader tag a couple weeks ago and he used the ELDX's on his hunt. He took a big bull 1st shot at 200, 2nd shot at 250, the bullets appeared to perform well.
I have a late November muzzleloader elk hunt coming up, and I am still on the fence as to which bullet to use. I went out shooting yesterday. at 200 yards, both the Fury and the ELDX hit the same. I stretched it out to 300, there was a pretty good left right cross wind. Both the Fury and the ELDX hit 8" to the right. The ELDX hit about 1.5" higher than the Fury at this distance. But I don't know if this can be attributed to the higher BC or just my shooting, as 300 yards is pushing the limits on my comfort zone with open sights. But from what I've seen, I'm not sure inside of 300 yards out of a paramount, that there is really any ballistic advantage to be gained by going with the ELDX, that paramount is surprisingly flat shooting. If you were shooting them out of a more traditional inline at slower velocities, this ballistic advantage may come into play more.
I have a pretty easy 1st rifle cow tag coming up in a couple of weeks. I am debating using this muzzleloader on that hunt just to see how everything works, it would be a good opportunity to get some more real world results on bullet performance, however I haven't yet decided which bullet I want to use. I'll post back with any additional results I get.