Core-lokts are really designed for deer. What if a 600 pounder comes out? I would use a tougher and heavier bullet. Exit wounds are always nice. I guided 11 deer hunts last years where the hunter was using a 308 and 150 corelokts. All the deer were shot under 70 yards and not one of those exited. There was next to no blood trail, luckily the furthest they went was 50 yards. You spend a lot of time preparing and planning the hunts. Cheap ammo is not where you want to cheap out!