Going to take out the HAM'R's older brother this weekend - the 7.62x40. It's tits with the 125gr Sierra PH.
You are going to like that HAM'R.
One of my buddies has a WC 7.62x40. It shoots very well and is an interesting cartridge. I am, however, surprised MM is endorsing these barrels. Considering he's had issues with them in the past. From what I've seen from WC, though, they seem to shoot well..