EdP
WKR
I shoot 165 gr GKs, 180 gr GKs and 180 gr ABs in my '06. The load for both 180s is 55.5 gr of IMR 4350 giving 2760 fps for the GK and 2720 fps for the AB. The 40 fps difference is insignificant and the ballistics for the two loads is essentially identical out to 500 yds. I have loads using Varget and IMR 4064 that shoot very close to the same POI as the 180s out to 300yds (1" more drop for the 165s at 300 with a 200 yd zero for both). The 165s are less expensive and have less recoil and I use them for shooting practice out to 300.
