Between Trail Boss and H4895 I can get the velocities that I want out of most of my guns.
As per Hodgdon,you can even drop back another 10% if needed.
I tried this several times just to see,but have really never needed to do this.
My favorite is to shoot the .308" bullets out of my 308Win bolt gun,about 100-200FPS faster than my 300BLK's. It is a great deer/hog killer and doesn't beat you up. Freakin' accurate also. --- SAWMAN