Ya I got some more 4320 also before everything dried up, and I also like it in my 223's.
But several years ago i started messing around with CFE 223 in 17 rem.
CFE 223 is now the powder I use in my 17 rem with 25gr HDY hp's or 25 v-max. This powder has no problem getting to 4000fps + just like 4320. WW 760 isn't bad, it'll do 3900 fps with either 25gr Hornady and shoots good.
Another one to try is Shooters world Match or maybe even better is SW Precision which is a hair slower.
I don't have much interest in some of these other faster burning powders, they won't get to 4100fps.
