I'll take a closer look at the clearance in my PRI mags with the 2.260 COL cartridges. Maybe I'm short changing myself. My 6.8 SPC PRI mags are 20 round capacity. I really like them. I do have a couple 10 round ASC mags for 6.8 SPC but I haven't ever used them. Maybe I should take a closer look at those too.

I have an unopened box of the Sierra 90gr .224 Matchking projectiles sitting on my desk ready to go wheels up. Consider it a small token of my appreciation for the enjoyment and knowledge I'm getting out of this thread. We are on the same quest with this .224 Valkyrie round and I appreciate you letting me participate in the conversation. After many years of enjoyment and content with shooting and questing for improved marksmanship, this round is what finally nudged me over the precipice sending me tumbling into the realm of reloading. Being new reloading, I've lots to learn from guys like you. So again, thank you!