Ok guys i have been visiting this site for months! never have posted,never had nothing to say or wasn't sure what to, but here it goes!Love this site lots of info! I just built my first precision rifle and put a hundred rounds threw it today!It's a bushmaster lower a ar stoner upper,dpms 24"ss heavy barrel and a sightmark 10x40x56 scope chambered in 5.56.It shot great,was ringing a 4"steel plate at 300 yrds after 0 at 200 yrds!And hello to all looking foward to new friends!