This is a couple of groups of my hybrid profile 12.5.
Functions reliably with or without my Sandman S.
Targets below were 100yds off a bench with front rest and rear bag.
Scope was a 1-8 NX8 using the top post on the reticle. (Dot is to big for what I was doing obviously.)
I want to say this was FGMM Berger, don't think it was Sierra MK, can't remember the grain.
.80 MOA
This was Barnes 62gr 5.56 TSX. Shot right after the FGMM. I actually shot the Barnes first on another target. Confused, I then went back inside and scrubbed the barrel clean of all copper and cleaned it up and grabbed two Hornady match offerings and two Federal.
I was hoping to get at least 1.5, maybe 2 MOA with this. Oh well.
5 MOA
Disappointed, but not mad. I just have a really picky barrel of what it likes to eat. Still more ammo I'm looking to try. Going to buy a box of the Barnes 70gr TSX to try.
Interested to see how Federal MK318 shoots out of it as well.