I shoot mostly 50 V Max out of my 223's and 221 Fireballs, but I have shot some 40 grain V Max as well as other bullets. I have 500 40 grain V Max loaded up for a slow twist 223 that I have to turn necks for and the throat is set up for short bullets that I am taking on a PD shoot and 500 50 grain V Max for a slow twist regular throated 223 for the same shoot. Both shoot pretty well. The 50 grain SPSX shoot well too, if you do not push them real hard and do not have a fast twist barrel. For the money and accuracy, it is hard to beat a V Max bullet. I have not shot much of the Noslers, but would imagine they would shoot well too.