Even with a solid heart shot, they can go a ways. And then sometimes, a normal lung shot will drop them in their tracks. Still haven't figured all of this out.

To original question- my experience with game ranging from small deer to large moose is just like Tom said - a plain vanilla double lung shot (with the chance of hitting the heart too) with a corelokt or standard grade from any of the manufacturers and they'll not go further than100 yards after the shot, usually more like 40 - 50. So, practice your shooting in "field conditions", practice chambering and making an accurate secont shot, when you get to the spot or stand you'll be hunting in, practice (slowly, quietly!) aiming your rifle at various areas to make sure you can hold the rifle and make a shot quickly and quietly when the deer appears.

When you get your chance, take the safest, "best" shot you can at the largest fatal target of the deer -the lungs. Studydiagrams of the deer's body to make sure you understand where that shot would bedepending on the angle the deer is at. Get a "vision" in your mind's eye about this.

Be super dilligent watching where it goes if into the brush if you shoot at it. Be sure to carefully mark in your mind the spot you last saw it. Believe me, it's easy to loose track of them after the excitement of the shot as they trot off after a lung shot. It's easy to lose track of which part of the brush they ducked into. It's surprising how hidden a large animal can be laying down in just a little brush. Keep your eyes glued on the spot you last saw it until you're sure you cango to it when you start to track. Wait at least 15 (better 30) minutes before going after it to give it a chance to bleed out and die without being spooked by you.But if you make a good shot , and and mark carefully, you'll find your animal well within your boundaries. I'll bet your uncle will school you on all this too. Have fun!