Re: 700 Varmint 223 advice
I have a Remmy 700 VTR with a 1:9 twist. All of the advice so far is spot on, stick with light, flat-base bullets. Mine will shoot up to the 77s but still does the 40s well too.
Here's a good recipe:
27gr Varget, 40gr Nosler HPBT "varmageddon", seated .040" off...