5.7 Carry ammo

[Russerman]

I think this is the thread.

5.7 rock ballistics?

First off, yes I googled it, A LOT. The problem with google these days is it’s not that the info isn’t out there, but you get the results google “wants” to give you. Anyways, anyone have or know where to find speeds out of the 5.2 threaded Rock barrel? Preferably with several different rounds? Best I found is a 5 inch barrel is 1,750 FPS. But that didnt even mention which bullet it was. Hoping some article or Youtube video has done a 5.2 Rock threaded barrel with several bullet weights through…