Well guys don't forget - he was shooting 271 yds with a ML and got what appears to be about a 5" group. That's roughly 2 MOA. Not too shabby. And the 3 shots at 100 yds also look like about 2" (so the same).
The rifle is consistant (and so is the shooter) so maybe a bit of tweeking and Ron will have a dandy shooting rifle there.