The local idea is a sound one. You have to learn the targets McKenzie vs. Rhinehart, this is no small task, McKenzie makes a bunch of deer targets, is it the big one at 40 yards of a small one at 32 yards, looks similar if you don't know them. Where is the 12 ring on that black hog that they have hidden under dark pine trees at 40 yards. Uphill/downhill, do you know how to adjust yardage, or are you going to use a rangefinder? I recommend you shoot all the local 3D's for a year first unless you just have money to burn on gas and hotels and food in these god forsaken places LOL