Some good SD with the Varget,, but not great results overall, with these limited loads.  You can see I am learning about the OAL issue with Valkyrie, and so far, there is a correlation between accuracy and being closer to lands...

The StaBall 6.5 isn't really totally fair, its only 3 shots, but they are nearly through the same hole.  The other 2 bullets had huge gashes in them.  I came back after shooting everything, and shot the other 2, which went almost in the same hole, just in another location, away from first group.

Most of these groups have a problem, 5.56 doesn't have that much.  Almost every group has 1 flyer, but take a look...3 bullets in many groups going through near same hole, 1 is touching, then 1 is away from cluster...

I think after shooting now 100 tests, Valkyrie has some sort of chamber issue.

This is all from 50 Yards.

Almost everything has a flyer.  And there is no error here, the crosshairs are nailed, using a 50x Trijicon at 50 yards.  using a LeadSled DFT2.  Very secure. 

The Bison Armory barrel is basically the same accuracy as the WOA, comparable.

That StaBall 6.5 28.8 load was 2 flyers, but they had bent tips from jamming into gun from bad magazine.  I tested again, with good ones, and still got flyers.  Its more like 2 MOA. 

Shooters World & W748 are OK here, MOA.