Hi Chris
Its Jeff here. I don't know if it holds true for bigger rounds but in the 223 with pressure testing, you can get to a higher MV (sure you use a bit more powder but whats a half or full grain) at the same pressure by using moly. So if I"m limited to 60 kpsi then, for example, I can safely go to 2700 fps with a bare 80 at 60kpsi while I can go to 2850 fps with a moly 80 at the same 60 kpsi. BTW in my experience with going 200 rounds of 223 with bare bullets, I can tell it in my 600 and beyond scores. While my short line 300 and under never suffered much. Since going to moly I've cleaned 600 with better than 50% x count out of my service rifle, with over 350 rounds in the tube. I doubt that could have happened with bare bullets and that round count.
Seems the consensus is that moly is like it is in the HP game. Use it or don't. Whatever you like.
I am leaning a bit more to non moly in the next hunting rifle and we'll see how it works.
Thanks for all the input folks!!
Jeff