OK, In a nutshell!
I am shooting a RRA A4 Varmint 18"(as it came from Factory).
Magpul PRS Stock
USO 1.8x10 Tpal
Nightforce Unimount
Harris Bipod
Hornady 55gr TAP
After zeroing the rifle and scope I would return to the range on several occasions and the CB and subsequent 5-8 shots would be...