In my opinion, owning both to do a side by side comparison, yes. The 3-15 has slightly better glass. At short range, it is difficult to notice, but much past 350, the 3-15 starts to show better resolution of color.
I use Vizzards for my 6.5 CM orders and Ventura Munitions for my Grendel.
https://vizardsgunsandammo.com/horn-81489-am-whtl-6-5crd-129-il-20-10/
Hard to beat $18 a box.