Here's my first precision build, so far its shooting great with the factory barrel. Haven't hunted anything with it yet, but I might try a mule deer at 400+yds if a situation presents itself.
Rem 700 SPS Varmint
MCS T-1 stock
Falcon Optics 4.5-18 56mm
EGW 20moa base
TPS 30mm rings
Tuned remington trigger 2 1/2lbs
Smallest group to date is 4" at 600yds with 107smk.
Looking at a 18" gong at 950yds.