Hi all. I have been shooting for many years, however I have now bought some land that offers very long range hunting. I would like to long range zero a few of my rifles and in all the reaserch I have seen everybody recomends sand bags for this, now my ? is wouldent a gun vice be better, or is locking the gun down a bad move?(due to the recoil being supressed). I am very anal about sighting in my guns well and want to do the right thing so some advice from serios shooters would be great. By the way it is a 300 wetherby mag.