FWIW - I have recently been working up a load with the 88 ELDMs over Varget in a .223 Rem F-TR rifle (30" 6.8-twist barrel, 0.220" freebore). My observations are listed below.
Positive
1) The 88 ELDMs are probably the most dimensionally consistent bullet out of the box I've ever used. There was simply no need for any kind of length sorting.
2) I was able develop a load that grouped extremely well at 100 and 600 yd, so the precision is more than acceptable.
3) As determined using velocity drop (LabRadar data), the estimated BC is significantly higher than the "box value". (0.306 average estimated G7 BC versus 0.274 advertised G7 BC)
Negative
1) Jacket failures - I've had at least two fail during the load development process.
Unfortunately, this "negative" markedly outweighs all the positive features of the 88 ELDM bullets. In F-TR competition, you cannot afford a single missed shot (i.e. a "zero"). No matter how good a bullet groups or how high it's BC, if it doesn't make it to the target every time, it's a deal-breaker...I can never trust these bullets in a match.
In fairness, I am pushing the 88s at approximately 2830 fps from a 6.8-twist barrel, which translates to approximately 299K RPM. This load is at the very upper end of safe operating pressure according to SAAMI specs. It is worth note that myself and others have also had similar jacket failures using Berger 90 VLDs at velocities of 2830 to 2850 fps, generally out of barrels with a twist rate faster than 7.0. Nonetheless, there are other 80+ gr heavy .224 cal bullets that seem to withstand comparable or higher RPMs without failure. Regardless of the bullet manufacturer, if it becomes necessary to drop load velocity by 75 to 100 fps (or more) just so the jacket will survive its entire journey to the target face, then it really doesn't matter how consistent the bullets are, how well they group, how easy to load they are, or how high the BC is. I'm not going to be too hard on Hornady here for their 88 ELDMs, I think they've produced a very good bullet for those that are willing to use mild loads and accept the lesser ballistic performance. However, in F-TR competition, it is necessary to push .223 Rem loads with heavy bullets hard, or you're simply giving up too much performance to keep up with .308s and 200 gr high BC bullets. Much as I had hoped the 88s would prove to be a winning combination, I'll keep looking.