6mm ARC

[StoneHendge]

Maybe this will mean we’ll get a polymer mag? Since you’d think if it’s made for the 6mm a 6.5mm would work for the Grendel too.

It’s crazy how all of this has hit the market, me personally I wouldn’t buy any barrel That utilizes a gas port location that’s used in standard AR’s of 556/6.5 location. This platform was developed from the ground up and what’s being used those involved is what you should use.

That would be what Proof has been doing. They've been in this all the way and they've had a relationship with the military from near their beginnings.

Also makes me think 7.5 twist is just fine. I've always thought you should only go as fast as needed with the suspicion that fast twist creates a lot of lateral force on the jacket that can cause deformity or slippage that can affect accuracy. My personal theory on why the Valkyrie can have increased dispersion at longer ranges. Plus fast twist has been known to shed the thin jackets on Varmint bullets.