Nice I've been wanting to try out 6.8 spc. Also want to try that 6.5 Grendel. Decisions decisions.
I researched building a 6.5 grendel but ultimately chose not to do so.
apparently, it's becoming quite popular in Russia because of its case dimensions being similar to other popular cartridges there. this equals cheap tula ammo! also, it out performs the 6.8 at range. these are the pros.
the reasons I ultimately decided against it were that I rarely shoot past 300 yards which is where the grendel begins to outpace the 6.8. this would be a hunting rifle mainly, and you can't even see past two hundred yards or so from my stand. also, I'm 4 for 4 with my current setup so why switch?
also, I've noticed that most of the barrel offerings are for 18" to 22" for the AR. I prefer a cartridge that maximizes performance out of 16" or less. if I wanted to carry a big rifle around the woods, might as well "upgrade" from 6.8 to 308 and skip 6.5 all together.
I still think it's a great round; I just don't have a need for it in my stable at the moment.