I have an savage 110 7mm rem mag flat back and was thinking bout re barreling it to a 300 win mag. Looks like the bolt heads are the same I believe so all I'll have to do is the barrel? I've found a ER Shaw barrel with small shank will that work on my gun and is that a decent barrel? All the gun will be used for is little hunting and targeting shoots good just wanting to play with it a little bit. Need all the advice and help I can get thanks