ORIGINAL: gleason.chapman
If you push a Dead center above 2000 fps they are not as accurate, I have read complaints of this. TMZ is great bullet if they work in your gun (Knight sells them as a red hot).
Chap
One of those complaints was from me!
I have a lot of experience with that. Once there were jacketed offerings with similar BC that I could drive faster, I switched. If you don't need the extra 100-200fps though they ARE a good bullet.