I know nothing really about either of these guys. Sounds like a pi$$ing contest is going on. And though I am an engineer by trade, my particular discipline and work experience have given me no advantages in understanding internal ballistics. The external ballistics, I can barely handle hhese days !! What I do know is that I have used a Savage 10 ML and a CVA Optima Pro these past several years with excellent results at both the range and in the field. I figure following the info in the manufacturers' manuals, specs, etc. to the "T" is a good thing. Not doing so is a bad thing. Simple enough for me.