I'm curious to see if the new berger 200 kills the .223. That sounds like quite a bullet.
It's supposed to represent a 4% increase in BC over the old 200 Hybrid. That's definitely an improvement, but it's certainly not a quantum leap in BC. Running reasonable velocity for a 200 gr bullet (2660 fps) and my velocity for the 90 VLDs (2850 fps), JBM indicates a 0.4 MOA advantage to the new 200.20X at 600 yd (3.3 vs 3.7 MOA, 10 mph full value wind) and a 0.9 MOA advantage at 1000 yd (6.3 vs 7.2 MOA). The comparable numbers for the old 200 Hybrid are 3.5 and 6.6 MOA, respectively.
Remember though, it's still a 200 gr bullet (200.2 gr, actually) and recoil management issues will be the same as with the old 200 Hybrid. The recoil won't magically go away because of the increased BC design. At 600 yd, if the wind conditions are relatively mild, some of the advantage of the new 200.20X will be lost to anyone that isn't fully accustomed to handling the recoil of a 200 gr bullet. If the wind is moderate to pretty challenging, I'm sure it will perform admirably. Personally, I'll still be perfectly happy with the 3.7 MOA at 600 yd using the .223/90s, and I have a few tricks up my sleeve that might just boost their performance a tad more. Not to the level of this new bullet, not on paper at least, but enough to potentially close the gap just a bit. I personally find the almost complete lack of recoil with the .223 and the inherent precision to which the 90 VLD can be made to shoot a big advantage. If you're used to heavies in a .308, you really ought to be able to work some magic with this new bullet. Unfortunately, a significant portion of the other shooters will likely be using the exact same thing now that the word is out.
At 1000 yd, well, the 90s just really haven't been used all that much, I think in part, because they're somehow generally perceived as being "deficient" in some way at that distance. The fact is that they most definitely
are at a disadvantage to a 200 gr Hybrid (old or new)...but no more than any other typical 185 gr .308 load would be. If you want to run with people shooting 200s...you really need to be shooting 200s or higher, not 185s, or even 90s for that matter.