6.5 Grendel vs 224 Valkyrie

[bj139]

Ar15performance used to sell this wildcat barrel with the name Six5. I bought one used. It is a simple neckdown of the 6.8 SPC where I think the Valkyrie is shortened also. I only shot 10 shots through it as shown below.
I had to grind down the shellholder to make the cases with a 6.8SPC bushing die and used a .285 bushing.