I just completed an M14 Clinic at a secret location for a Gov't Agency and their armorers. The armorers broke out their personal Norinco M14's and were obtaining groups hovering (& cloverleafing) around the 1/2" mark. They showed me their binders of stored targets (they are very serious) and I was totally impressed. They were even using their existing CHU Wood stocks. Their ammo was 'company' ammo with the 168 gr Sierra MK (Op Sec... can't tell you which LE Organization
) and they were shooting 100m away INDOORS. Read: No wind.... 
That's all I'm allowed to say....
But they are fzckeng amazing craftsmen! Especially in the afternoon when they were doing their OWN tweaking at their own personal work station(s)... Shut the fzck up, Hungry! 
There.... I never thought I would ever see a shztload of half inch groups out of box stock Norc's and CHU Wood
M14's but I did and I'm a believer! I just cannot spread the word....
I'm sworn to secrecy. Agent Orange told me so! 

Barney
That's all I'm allowed to say....

There.... I never thought I would ever see a shztload of half inch groups out of box stock Norc's and CHU Wood


Barney