I haven't shot the ELD bullets so shoot me down for speculating, but all I've heard about them (the X version anyway) makes me think they are just a revamp of the SST.
I HAVE shot LOTS of the SST in 270 Win, 308 Win, 30-06 and 338 WM, and in my experience on lots and lots of pigs and goats and the odd deer, they are very good killers IF you keep impact speeds below 2800fps.
The more impact velocity drops below that, the better they work.
I will gladly give the ELDXs a run but only in heavy for calibre weights.
Again, sorry to speculate but I suspect my instinct serves me well....
