Now available to the general public, Kyle (FPSRussia) got one of the first cracks at the Ohio Ordnance Works Heavy Counter-Assault Rifle. Ohio left no portion of the design untouched, stripped significant weight from the design and adding modern touches including a hydraulic buffer.
The watermelon test was particularly spectacular with the 30-06 rounds. FPS makes handling it look easy. Ohio Ordnance has pulled out a lot of the recoil. Hit the video for all the juicy destructive testing.