With a 308 at 50 yrds or less (thich woods), I bet you will not be able to find a load that will not be hunting accurate. Hunting accurate being within 3 inches of point of aim. Pick a premium/ controlled expantion bullet of any weight, go to a range and shoot in every position you can emagine. Get used to pulling the gun up quick and getting the target in the scope. That needs to be second nature. You will need to be able to look at the target, sholder the gun, and see the target thru the scope.

PS Turn the scope down to the minimum power.